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question_answer1)
Surfaces used in study of reflection of light are
A)
Polished done
clear
B)
Rough done
clear
C)
Black painted done
clear
D)
None of these done
clear
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question_answer2)
Normally a plane mirror forms
A)
a real image only done
clear
B)
a virtual image only done
clear
C)
Both real as well as virtual image done
clear
D)
Neither real nor virtual image done
clear
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question_answer3)
A parallel beam of rays falling on a concave lens
A)
are scattered done
clear
B)
remain parallel done
clear
C)
are diverged done
clear
D)
are converged done
clear
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question_answer4)
Shaving mirrors are
A)
convex mirrors done
clear
B)
plane mirrors done
clear
C)
concave mirrors done
clear
D)
None of the above done
clear
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question_answer5)
White light breaks up into seven colours due to
A)
reflection done
clear
B)
refraction done
clear
C)
dispersion done
clear
D)
None of these done
clear
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question_answer6)
Which of the following is used as side view mirror in vehicles?
A)
Plane mirror done
clear
B)
Concave mirror done
clear
C)
Convex mirror done
clear
D)
None of these done
clear
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question_answer7)
The type of lens, which is thicker in the middle and thinner at the edges and is used as magnifying glass, is called
A)
convex lens done
clear
B)
concave lens done
clear
C)
diverging lens done
clear
D)
None of these done
clear
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question_answer8)
Lens
A)
refers to a magnifying glass done
clear
B)
is a piece of transparent medium bounded by at least one spherical surface. done
clear
C)
Both the above are correct. done
clear
D)
None of these done
clear
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question_answer9)
What kind of mirror provides images of large areas and is used for security?
A)
A plane mirror done
clear
B)
A concave mirror done
clear
C)
A convex mirror done
clear
D)
All of the above done
clear
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question_answer10)
If the angle between the incident ray and the normal to the plane of the mirror is \[40{}^\circ ,\] the angle between the incident ray and the reflected ray will be
A)
\[40{}^\circ \] done
clear
B)
\[90{}^\circ \] done
clear
C)
\[80{}^\circ \] done
clear
D)
\[60{}^\circ \] done
clear
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question_answer11)
Which of the following can form real images?
A)
A plane mirror done
clear
B)
A convex mirror done
clear
C)
A convex lens done
clear
D)
A concave lens done
clear
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question_answer12)
Which of the following would you prefer to use while reading small letters found in a dictionary?
A)
A concave mirror done
clear
B)
A concave lens done
clear
C)
A convex mirror done
clear
D)
A convex lens done
clear
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question_answer13)
Which of the following materials cannot be used to make a lens?
A)
Water done
clear
B)
Glass done
clear
C)
Plastic done
clear
D)
Clay done
clear
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question_answer14)
Light is
A)
an electromagnetic radiation done
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B)
a transverse wave done
clear
C)
mass less done
clear
D)
All of the above done
clear
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question_answer15)
The speed of light is
A)
330 m/s done
clear
B)
300,000,000 m/s done
clear
C)
30,000 m/s done
clear
D)
300,000,000 km/s done
clear
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question_answer16)
Rectilinear propagation is
A)
mode of travelling in curved lines done
clear
B)
mode of travelling in straight lines done
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C)
ability to bend around obstacles done
clear
D)
displaying the phenomenon of diffraction done
clear
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question_answer17)
Which of the following is a reflector of light?
A)
Sun done
clear
B)
Moon done
clear
C)
Star done
clear
D)
Filament done
clear
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question_answer18)
We can see the objects only when
A)
reflected light reaches our eyes done
clear
B)
the objects absorb all the light done
clear
C)
the objects allow all the light to pass through them done
clear
D)
None of the above done
clear
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question_answer19)
The surfaces which cannot produce clear images are called
A)
rough surfaces done
clear
B)
ideal surfaces done
clear
C)
smooth surfaces done
clear
D)
curved surfaces done
clear
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question_answer20)
In order to be used as mirrors, glasses are coated with
A)
silver done
clear
B)
copper done
clear
C)
aluminium done
clear
D)
platinum done
clear
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question_answer21)
A spherical mirror is a
A)
reflecting elliptical surface done
clear
B)
reflecting spherical surface done
clear
C)
reflecting parabolic surface done
clear
D)
flat reflecting surface done
clear
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question_answer22)
The distance between the focus and the pole of the mirror is called
A)
focal length done
clear
B)
radius of curvature done
clear
C)
principal axis done
clear
D)
diameter of curvature done
clear
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question_answer23)
A ray of light is incident on a plane mirror at an angle of incidence of\[30{}^\circ \]. The deviation produced by the mirror is
A)
\[30{}^\circ \] done
clear
B)
\[60{}^\circ \] done
clear
C)
\[90{}^\circ \] done
clear
D)
\[120{}^\circ \] done
clear
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question_answer24)
The object or image distance is taken as positive
A)
if the length is measured opposite to the direction of the incident ray done
clear
B)
if the length is measured in the direction of the incident ray done
clear
C)
if the length is measured opposite to the direction of the refracted ray done
clear
D)
none of these done
clear
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question_answer25)
A ray of light is incident on a plane mirror and the angle of incidence is\[25{}^\circ \]. What is the angle Of reflection?
A)
\[0{}^\circ \] done
clear
B)
\[50{}^\circ \] done
clear
C)
\[90{}^\circ \] done
clear
D)
\[25{}^\circ \] done
clear
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question_answer26)
An ideal mirror
A)
absorbs all the amount of light incident on it done
clear
B)
refracts all the light done
clear
C)
reflects all the light done
clear
D)
none of the above done
clear
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question_answer27)
The point where the rays from a point object meet after refraction through a lens is called the
A)
focus done
clear
B)
center of curvature done
clear
C)
optical centre done
clear
D)
image point done
clear
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question_answer28)
According to the laws of reflection
A)
angle i = angle r done
clear
B)
sine i = sine r done
clear
C)
sine i / sine r = constant done
clear
D)
All of these done
clear
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question_answer29)
Dispersion of light is defined as
A)
spliting of white light into seven colours done
clear
B)
spliting of white light into five colours done
clear
C)
spliting of white light into six colours done
clear
D)
spliting of white light into any number of colours done
clear
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question_answer30)
On the basis of following features identify the correct option. (I) It is also known as diverging lens. (II) This lens diverges rays of light.
A)
Convex lens done
clear
B)
Concave lens done
clear
C)
Both (a) and (b) done
clear
D)
Neither (a) nor (b) done
clear
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question_answer31)
The band of seven colours formed on a screen when the white light suffers dispersion is called
A)
solar colored band done
clear
B)
spectrum done
clear
C)
sonar done
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D)
none of the above done
clear
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question_answer32)
Red, orange, ____, ____, _____, indgo and violet is the order of colours in spectrum. The order of missing colours is:
A)
blue, green and yellow done
clear
B)
yellow, blue and green done
clear
C)
green, blue and yellow done
clear
D)
yellow, green and blue done
clear
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question_answer33)
The colour that deviates least during the dispersion of white light is:
A)
violet done
clear
B)
green done
clear
C)
red done
clear
D)
orange done
clear
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question_answer34)
What is the angle between the incident and reflected rays when a ray of light is incident normally on a plane mirror?
A)
\[90{}^\circ \] done
clear
B)
\[45{}^\circ \] done
clear
C)
\[180{}^\circ \] done
clear
D)
\[0{}^\circ \] done
clear
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question_answer35)
Spherical mirror
A)
refers to any curved mirror done
clear
B)
refers to a mirror that is part of a sphere. done
clear
C)
both the above are correct. done
clear
D)
none of these is correct. done
clear
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question_answer36)
A concave mirror
A)
is a type of spherical mirror whose reflecting surface is concave. done
clear
B)
is a type of curved mirror whose reflecting surface is convex. done
clear
C)
both the above are correct. done
clear
D)
none of these is correct. done
clear
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question_answer37)
When seen from a close distance in a plane mirror, the face image
A)
has same size done
clear
B)
is enlarged done
clear
C)
is diminished done
clear
D)
is blurred done
clear
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question_answer38)
When seen from a close distance in a convex mirror, the face image
A)
has same size done
clear
B)
is enlarged done
clear
C)
is diminished done
clear
D)
is blurred done
clear
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question_answer39)
A convex lens is thick
A)
At the edge done
clear
B)
In the middle done
clear
C)
Same every where done
clear
D)
No definite shape done
clear
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question_answer40)
The image which can be obtained on a screen is called
A)
erect done
clear
B)
real done
clear
C)
virtual done
clear
D)
inverted done
clear
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question_answer41)
DIRECTION: Match column-I with Column-II and select the correct answer using the code given below the columns.
Column - I | Column - II |
(A) Plane mirror | (p) Forms real image |
(B) Convex mirror | (q) Forms image of the same size as that of the object |
(C) Concave mirror | (r) Always forms virtual images. |
(D) Concave lens | (s) Always forms images that are virtual, erect and smaller than the object. |
A)
A\[\to \] (p), B\[\to \] (q), C\[\to \] (r), D\[\to \] (s) done
clear
B)
A\[\to \] (q), B\[\to \] (r), C\[\to \] (s), D\[\to \] (p) done
clear
C)
A\[\to \] (q), B\[\to \] (r), C\[\to \] (p), D\[\to \] (s) done
clear
D)
A\[\to \] (p), B\[\to \] (s), C\[\to \] (q), D\[\to \] (r) done
clear
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question_answer42)
DIRECTION: Match column-I with Column-II and select the correct answer using the code given below the columns.
Column - I | Column - II |
(A) Objects that have their own light | (p) Non- Luminous |
(B) Object that do not have their own light | (q) Luminous |
(C) Light ray falling on rough surface | (r) Irregular reflection |
(D) Image formation in a mirror | (s) Regular reflection |
A)
A\[\to \] (p), B\[\to \] (s), C\[\to \] (q), D\[\to \] (r) done
clear
B)
A\[\to \] (r), B\[\to \] (p), C\[\to \] (q), D\[\to \] (s) done
clear
C)
A\[\to \] (p), B\[\to \] (q), C\[\to \] (r), D\[\to \] (s) done
clear
D)
A\[\to \] (q), B\[\to \] (p), C\[\to \] (r), D\[\to \] (s) done
clear
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question_answer43)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 One way to change the path of light is to allow it to fall I on a shiny surface. A mirror can change the path of light that falls on it. The change of direction by a mirror is called reflection of light. If you look at the surface of water taken in a plastic trough, your image will be formed which will be
A)
larger in size done
clear
B)
smaller in size done
clear
C)
of the same size done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer44)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 One way to change the path of light is to allow it to fall I on a shiny surface. A mirror can change the path of light that falls on it. The change of direction by a mirror is called reflection of light. An image formed by a plane mirror is
A)
erect done
clear
B)
of the same size as object done
clear
C)
both (a) and (b) done
clear
D)
none of these done
clear
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question_answer45)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 A light ray makes an angle of reflection \[60{}^\circ ,\] when it reflects from a plane reflecting sheet. The glancing angle of reflection will be
A)
\[60{}^\circ \] done
clear
B)
\[30{}^\circ \] done
clear
C)
\[45{}^\circ \] done
clear
D)
\[90{}^\circ \] done
clear
View Solution play_arrow
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question_answer46)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 A light ray makes an angle of reflection \[60{}^\circ ,\] when it reflects from a plane reflecting sheet. The angle of incidence will be
A)
\[60{}^\circ \] done
clear
B)
\[30{}^\circ \] done
clear
C)
\[45{}^\circ \] done
clear
D)
\[90{}^\circ \] done
clear
View Solution play_arrow
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question_answer47)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 A light ray makes an angle of reflection \[60{}^\circ ,\] when it reflects from a plane reflecting sheet. The angle of deviation will be
A)
\[60{}^\circ \] done
clear
B)
\[30{}^\circ \] done
clear
C)
\[45{}^\circ \] done
clear
D)
\[90{}^\circ \] done
clear
View Solution play_arrow
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question_answer48)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A? and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): The white light of sun is composed of seven colours. Reason (R): When white light passes through a glass prism it splits the white light into seven colours.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer49)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A? and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): The air bubble shines in water. Reason (R): Air bubble in water shines due to refraction of light.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer50)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A? and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Ladies use concave mirrors for doing make up. Reason (R): Concave mirror makes a real and diminished image of an object.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer51)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A? and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): In the side mirror of a car, the images of all objects appear smaller than the objects. Reason (R): Side mirrors are convex mirrors.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer52)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A? and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): The lenses are transparent and light can pass through them. Reason (R): The surface of bell on your cycle acts as a convex lens.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer53)
DIRECTIONS: Read the following two statements carefully and choose the correct options. Statement 1: Virtual object can't be seen by human eye. Statement 2: Virtual object is formed by diverging rays.
A)
Statement (1) is correct while statement (2) is incorrect done
clear
B)
Statement (2) is correct while statement (1) is incorrect. done
clear
C)
Both statements are correct done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer54)
DIRECTIONS: Read the following two statements carefully and choose the correct options. Statement 1: A ray incident along normal to the mirror retraces its path. Statement 2: In reflection, angle of incidence is always equal to angle of reflection.
A)
Statement (1) is correct while statement (2) is incorrect done
clear
B)
Statement (2) is correct while statement (1) is incorrect. done
clear
C)
Both statements are correct done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer55)
DIRECTIONS: On the basis of following diagram/picture answer the questions given below: Which one of the following pictures shows a diverging lens? (A)
(B)
(C)
(D)
A)
A done
clear
B)
B done
clear
C)
C done
clear
D)
D done
clear
View Solution play_arrow
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question_answer56)
DIRECTIONS: On the basis of following diagram/picture answer the questions given below: Which statement best describes the property of light waves illustrated in the diagram below?
A)
Some materials absorb light waves. done
clear
B)
Some materials reflect light waves. done
clear
C)
Light waves are refracted by some materials. done
clear
D)
Light waves are emitted by some materials. done
clear
View Solution play_arrow
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question_answer57)
DIRECTIONS: On the basis of following diagram/picture answer the questions given below: Find the angle of incidence and angle of reflection from the diagram.
A)
\[45{}^\circ ,\,\,40{}^\circ \] done
clear
B)
\[55{}^\circ ,\,\,55{}^\circ \] done
clear
C)
\[60{}^\circ ,\,\,60{}^\circ \] done
clear
D)
\[30{}^\circ ,\,\,30{}^\circ \] done
clear
View Solution play_arrow
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question_answer58)
DIRECTIONS: On the basis of following diagram/picture answer the questions given below: Which of the following figures correctly shows the bending of a ray of light inside the prism?
A)
B)
C)
D)
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question_answer59)
DIRECTIONS: On the basis of following diagram/picture answer the questions given below: Find the angle between the incident ray and reflected ray.
A)
\[60{}^\circ \] done
clear
B)
\[90{}^\circ \] done
clear
C)
\[80{}^\circ \] done
clear
D)
\[40{}^\circ \] done
clear
View Solution play_arrow
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question_answer60)
DIRECTIONS: On the basis of following diagram/picture answer the questions given below: Ashima looks into the mirror and sees the reflection of the picture behind her.
Which of the following is the picture that is behind Ashima?
A)
B)
C)
D)
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question_answer61)
Which of the following capital English letters does not show a lateral inversion?
A)
A done
clear
B)
B done
clear
C)
C done
clear
D)
D done
clear
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question_answer62)
The distance between a plane mirror and the image of an object placed in front of the mirror is 4 m. If now the object is moved m towards the mirror, then the distance between the object and its image in the mirror will be
A)
3m done
clear
B)
5m done
clear
C)
6m done
clear
D)
8m done
clear
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question_answer63)
The mirror image of "SMART" will be
A)
B)
TAMSR done
clear
C)
SMART done
clear
D)
SMRAT done
clear
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question_answer64)
The image of the teeth seen by a dentist while examining your teeth is
A)
erect and real done
clear
B)
erect and virtual done
clear
C)
inverted and virtual done
clear
D)
inverted and real done
clear
View Solution play_arrow
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question_answer65)
Skiers often wear sunglasses while they are siding because snow
A)
Radiates light done
clear
B)
absorbs light done
clear
C)
Conducts light done
clear
D)
reflects light done
clear
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question_answer66)
Select the one that is not true about a rainbow.
A)
Rainbow is always seen as a circle. done
clear
B)
The colours in rainbow as seen by us from top to bottom are in the order, violet, indigo, blue, green, and yellow, orange, red. done
clear
C)
The colours in rainbow as seen by us from top to bottom are in the order, red, orange, yellow, green, and blue, indigo, violet. done
clear
D)
It can be either as in (b) or as in (c). done
clear
View Solution play_arrow
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question_answer67)
In this type of mirror the image is formed behind the mirror and the size of image is same as the size of object. It is a
A)
convex mirror done
clear
B)
concave mirror done
clear
C)
plane mirror done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer68)
Why do you see your smaller and erect image when you look at the shining surface of the bell of your bicycle?
A)
It acts as a convex lens done
clear
B)
It acts as a convex mirror done
clear
C)
It acts as a concave lens done
clear
D)
It acts as a concave mirror done
clear
View Solution play_arrow
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question_answer69)
The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 3 m/s and he sees in his rear view mirror a vehicle parked behind his car. The speed at which the image of vehicle appears to approach the driver will be
A)
2m/s done
clear
B)
3 m/s done
clear
C)
5 m/s done
clear
D)
6 m/s done
clear
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question_answer70)
The speed of light will be minimum while passing through
A)
glass done
clear
B)
air done
clear
C)
water done
clear
D)
vacuum done
clear
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question_answer71)
An air bubble in water will be act like a
A)
convex mirror done
clear
B)
concave mirror done
clear
C)
convex lens done
clear
D)
concave lens done
clear
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question_answer72)
A ball is cut into two halves. On the outer surface of one half of the ball, a shiny aluminum foil is pasted. A candle is now placed in front of this shiny surface. The image of the candle formed by the shiny surface is:
A)
virtual and smaller in size done
clear
B)
real and smaller in size done
clear
C)
virtual and bigger in size done
clear
D)
real and bigger in size done
clear
View Solution play_arrow
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question_answer73)
A beam of light is said to be divergent when:
A)
all the rays travel parallel to each other done
clear
B)
all the rays spread from a point source of light done
clear
C)
all the rays converge together to a single point done
clear
D)
it travels in an irregular pattern done
clear
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question_answer74)
The length of the shadow will be longest when the:
A)
angle between the source of light and the object is \[45{}^\circ \] done
clear
B)
source of light and the object are parallel to each other done
clear
C)
source of light and the object are perpendicular to each other done
clear
D)
angle between the source of light and the object is \[60{}^\circ .\] done
clear
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question_answer75)
Which of the following is true regarding convex lens?
A)
It forms a magnified image wherever the object is place done
clear
B)
It forms a magnified image only when the object is very close done
clear
C)
It always forms diminished and erect images done
clear
D)
It is not made of a transparent material done
clear
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question_answer76)
Plane mirrors are arranged parallel to each other to get:
A)
a single image done
clear
B)
two images done
clear
C)
a large number of reflected images done
clear
D)
no image done
clear
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question_answer77)
A reflecting surface is curved inwards the mirror is:
A)
concave done
clear
B)
convex done
clear
C)
plane done
clear
D)
None of these done
clear
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question_answer78)
Which of the following produces a virtual image?
A)
A convex lens done
clear
B)
Pinhole camera done
clear
C)
A concave mirror when the object is placed at its centre of curvature done
clear
D)
Convex mirror done
clear
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question_answer79)
A prism is a piece of glass having:
A)
two rectangular and 3 triangular surfaces done
clear
B)
two triangular and 3 rectangular surfaces done
clear
C)
three triangular and 3 rectangular surfaces done
clear
D)
none of the above done
clear
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question_answer80)
The sun is seen before the actual sun rise because of
A)
reflection done
clear
B)
refraction done
clear
C)
scattering of light done
clear
D)
rectilinear propagation of light done
clear
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question_answer81)
If you can't quite see all your face in a pocket mirror, to do so you'll need to
A)
hold it closer done
clear
B)
hold it farther away done
clear
C)
get a bigger mirror done
clear
D)
none of these done
clear
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question_answer82)
An inverted image can be seen in a convex mirror,
A)
under no circumstances done
clear
B)
when the object is very far from the mirror done
clear
C)
when the object is at a distance equal to the radius of curvature of the mirror done
clear
D)
when the distance of the object from the mirror is equal to the focal length of the mirror done
clear
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question_answer83)
Dispersion of light by a glass prism takes place because of
A)
difference in wavelengths of the constituents of light done
clear
B)
difference in speeds of various constituents of white light. done
clear
C)
scattering of light by the surface of the glass prism done
clear
D)
only b and a are correct done
clear
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question_answer84)
The shape of the triangular prism
A)
Makes the emergent ray bend at angle to the direction of the incident ray done
clear
B)
Angle of deviation is the angle between the incident ray produced and the emergent ray produced done
clear
C)
Both (a) and (b) done
clear
D)
Neither (a) nor (b) done
clear
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question_answer85)
On the basis of following features identify the correct option. (I) Image formed is virtual and erect (II) Size of image formed is equal to size of object (III) The right side of the object appears as the left of its image and vice-versa.
A)
Concave mirror done
clear
B)
Convex mirror done
clear
C)
Plane mirror done
clear
D)
Both (a) and (b) done
clear
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question_answer86)
Which is not the property of a concave lens?
A)
It is thicker at the edges and tapering in the middle done
clear
B)
It forms virtual and erect image done
clear
C)
It forms enlarged image done
clear
D)
It forms diminished image done
clear
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question_answer87)
In nature, rainbow is formed due to the dispersion of sunlight. The optical aid responsible for it is/are:
A)
molecules of carbon dioxide done
clear
B)
tiny droplets of water done
clear
C)
molecules of nitrogen dioxide done
clear
D)
none of the above done
clear
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question_answer88)
Which of the following letters will be seen without any change in a plane mirror?
A)
S done
clear
B)
T done
clear
C)
L done
clear
D)
P done
clear
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question_answer89)
Plane mirrors are used in the construction of:
A)
Periscope done
clear
B)
Kaleidoscope done
clear
C)
Telescope done
clear
D)
Thermo scope done
clear
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question_answer90)
We use convex mirrors as side mirrors of vehicles, because
A)
they produce magnified images of the objects. done
clear
B)
they produce erect images of the objects. done
clear
C)
they can spread the images over a large area done
clear
D)
all of the above done
clear
View Solution play_arrow
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question_answer91)
Why a convex lens is called a converging lens?
A)
It bends inwards the light generally falling on it. done
clear
B)
It converges the light generally falling on it done
clear
C)
both the above are correct done
clear
D)
none of these is correct done
clear
View Solution play_arrow
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question_answer92)
DIRECTIONS: Match column-I with Column-11 and select the correct answer using the code given below the columns.
Column - I | Column - II |
(A) Convex lens | (p) Used by dentist to see enlarged image of teeth |
(B) Convex mirror | (q) Used as a magnifying glass |
(C) Concave mirror | (r) Can form image of the object spread over a large area. |
(D) Curved mirror | (s) Common example of a spherical mirror |
A)
A\[\to \] (p), B\[\to \] (q), C\[\to \] (r), D\[\to \] (s) done
clear
B)
A\[\to \] (q), B\[\to \] (r), C\[\to \] (p), D\[\to \] (s) done
clear
C)
A\[\to \] (r), B\[\to \] (s), C\[\to \] (q), D\[\to \] (p) done
clear
D)
A\[\to \] (s), B\[\to \] (p), C\[\to \] (r), D\[\to \] (q) done
clear
View Solution play_arrow
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question_answer93)
DIRECTIONS: Match column-I with Column-11 and select the correct answer using the code given below the columns.
Column - I | Column - II |
(A) Virtual image | (p) Band of seven constituent colors |
(B) Headlight | (q) Dispersion |
(C) Splitting of white light | (r) Real image |
(D) Spectrum | (s) Concave mirror |
(E) Image on retina | (t) convex mirror |
A)
A\[\to \] (s, t), B\[\to \] (q), C\[\to \] (s), D\[\to \] (p), E\[\to \] (r) done
clear
B)
A\[\to \] (r), B\[\to \] (p), C\[\to \] (s), D\[\to \] (q), E\[\to \] (s, t) done
clear
C)
A\[\to \] (s, t), B\[\to \] (s), C\[\to \] (q), D\[\to \] (p), E\[\to \] (r) done
clear
D)
A\[\to \] (r), B\[\to \] (p), C\[\to \] (q), D\[\to \] (s), E\[\to \] (s, t) done
clear
View Solution play_arrow
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question_answer94)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 When a narrow beam of white light (sunlight or torch light) is passed through a triangular glass prism, it splits into a band of seven colours. The seven colours are in order violet, indigo, blue, green, yellow, orange and red. The red colour is deviated the least while the violet colour is deviated the most. The colour sequence can be remembered by the acronym VIBGYOR.
Dispersion of white light into seven colours the phenomenon of splitting of white light into its component colours on passing through a refracting medium such as a glass prism is called dispersion of light. The pattern of the colored bands obtained on the screen is called spectrum. A spectrum is obtained by sending a beam of white light through a prism. A second prism exactly similar to the first one is placed in an inverted position with the sides parallel to the first. Now:
A)
a new spectrum will be formed on the screen with double the number of colours present in the previous spectrum done
clear
B)
new spectrum will be obtained on the screen with only half the number of colours present in the previous spectrum done
clear
C)
previous spectrum will disappear and we will obtain a white light formed by the fusion of the colours done
clear
D)
a spectrum with same number of colours present in the previous spectrum will be formed but their wave lengths will be increased twice done
clear
View Solution play_arrow
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question_answer95)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 When a narrow beam of white light (sunlight or torch light) is passed through a triangular glass prism, it splits into a band of seven colours. The seven colours are in order violet, indigo, blue, green, yellow, orange and red. The red colour is deviated the least while the violet colour is deviated the most. The colour sequence can be remembered by the acronym VIBGYOR.
Dispersion of white light into seven colours the phenomenon of splitting of white light into its component colours on passing through a refracting medium such as a glass prism is called dispersion of light. The pattern of the colored bands obtained on the screen is called spectrum. White light is made of:
A)
1 colour done
clear
B)
3 colours done
clear
C)
5 colours done
clear
D)
7 colours done
clear
View Solution play_arrow
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question_answer96)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 When a narrow beam of white light (sunlight or torch light) is passed through a triangular glass prism, it splits into a band of seven colours. The seven colours are in order violet, indigo, blue, green, yellow, orange and red. The red colour is deviated the least while the violet colour is deviated the most. The colour sequence can be remembered by the acronym VIBGYOR.
Dispersion of white light into seven colours the phenomenon of splitting of white light into its component colours on passing through a refracting medium such as a glass prism is called dispersion of light. The pattern of the colored bands obtained on the screen is called spectrum. Choose the correct statements:
A)
The sunlight is white done
clear
B)
The sunlight consists of five colours done
clear
C)
The sunlight consists of seven colours done
clear
D)
Both (a) and (c) done
clear
View Solution play_arrow
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question_answer97)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Take a stainless steel spoon. Bring the outer surface of the spoon near your face and look into it. Observe your image. Now observe your image using the inner side of the spoon. The image formed, when you were looking at the outer surface of the spoon by bringing this surface near your face, was
A)
erect done
clear
B)
virtual done
clear
C)
smaller in size done
clear
D)
all of these done
clear
View Solution play_arrow
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question_answer98)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Take a stainless steel spoon. Bring the outer surface of the spoon near your face and look into it. Observe your image. Now observe your image using the inner side of the spoon. The inner surface of spoon acts like a
A)
concave mirror done
clear
B)
convex mirror done
clear
C)
plane mirror done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer99)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Take a stainless steel spoon. Bring the outer surface of the spoon near your face and look into it. Observe your image. Now observe your image using the inner side of the spoon. When the object is placed very close to the concave mirror, the image formed is
A)
virtual done
clear
B)
upside down done
clear
C)
smaller done
clear
D)
all of these done
clear
View Solution play_arrow
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question_answer100)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as ?Assertion A? and the other labeled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): When we see an object, me image formed on the retina is real and inverted. Reason (R): If the magnification of a system is less than one, then the image formed is inverted.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer101)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as ?Assertion A? and the other labeled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Rainbow is an example of the dispersion of sunlight by the water droplets. Reason (R): Light of shorter wavelength is scattered much more than light of larger wavelength.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer102)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as ?Assertion A? and the other labeled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Red light travels faster in glass than green light. Reason (R): The refractive index of glass is less for red light than for green light.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer103)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as ?Assertion A? and the other labeled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Convex mirror used is street lights. Reason (R): Convex mirror diverges light over a small area than the plane mirror.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer104)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as ?Assertion A? and the other labeled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): A convex lens always forms real images for all the positions of an object. Reason (R): The convex lens converges the rays, and hence, forms real image.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer105)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as ?Assertion A? and the other labeled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): A plane mirror produces virtual, erect image for any position of the object. Reason (R): Plane mirror has finite focal length.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer106)
DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement 1: When an object is placed between two plane parallel mirrors, then all the images found are of equal intensity. Statement 2: In case of plane parallel mirrors, only two images are possible. Statement 3: A ray incident normal to the mirror does not retraces its path.
A)
Statement (1) and (3) are incorrect while statement (2) is correct. done
clear
B)
Statement (1) and (2) are incorrect while (3) is correct. done
clear
C)
All the statements are correct. done
clear
D)
All the statements are incorrect. done
clear
View Solution play_arrow
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question_answer107)
DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement 1: In an image formed by a mirror, the left side of the object is seen as the right side in the image. Statement 2: The capital English letter 'A' does not show a lateral inversion. Statement 3: Side view mirrors of car are convex mirror.
A)
Statement (1) and (3) are incorrect while statement (2) is correct. done
clear
B)
Statement (1) and (2) are incorrect while (3) is correct. done
clear
C)
All the statements are correct. done
clear
D)
All the statements are incorrect. done
clear
View Solution play_arrow
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question_answer108)
DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: Two children are standing in front of a plane mirror as shown. When the child A looks into the mirror, how far away from it will image of child B appear to be?
A)
9m done
clear
B)
18m done
clear
C)
11m done
clear
D)
16m done
clear
View Solution play_arrow
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question_answer109)
DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in the figure. Which of the following could be inside the box?
A)
A rectangular glass slab done
clear
B)
A convex lens done
clear
C)
A concave lens done
clear
D)
A prism done
clear
View Solution play_arrow
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question_answer110)
DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: The diagram shows a ray of light reflected by a plane mirror.
The angle between the incident ray and the reflected ray is\[80{}^\circ \]. What is the angle of incidence?
A)
\[40{}^\circ \] done
clear
B)
\[80{}^\circ \] done
clear
C)
\[50{}^\circ \] done
clear
D)
\[100{}^\circ \] done
clear
View Solution play_arrow
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question_answer111)
DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: Which diagram shows rays of light passing through a converging lens?
A)
B)
C)
D)
View Solution play_arrow
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question_answer112)
DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: An eye views an object O by reflection in a plane mirror. Which is the correct ray diagram?
A)
B)
C)
D)
View Solution play_arrow