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question_answer1)
Wave transfer from one place to another only
A)
mass done
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B)
particles done
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C)
energy done
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D)
medium done
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question_answer2)
The ___ is a disturbance by which energy is transfer without the transport of matter.
A)
wave done
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B)
heat done
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C)
light done
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D)
none of these done
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question_answer3)
Formation of ripples on the water surface is an example of _________.
A)
wave motion done
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B)
circular motion done
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C)
both (a) and (b) done
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D)
none of these done
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question_answer4)
A wave is produced by the ____ of the particles.
A)
motions done
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B)
vibrations done
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C)
rotations done
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D)
none of these done
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question_answer5)
The time period of an electromagnetic waves is 10-15 seconds. What is the frequency of wave in hertz?
A)
\[\text{1}{{0}^{\text{15}}}\] done
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B)
\[\text{1}{{0}^{\text{5}}}\] done
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C)
\[\text{1}{{0}^{2}}\] done
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D)
\[\text{1}{{0}^{7}}\] done
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question_answer6)
The frequency of a wave travelling at a speed of 500m/s is 25 Hz. Its time period will be
A)
20 s done
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B)
0.05 s done
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C)
25 s done
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D)
0.04 s done
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question_answer7)
Two sound waves in air have wavelength ratio 1 : 3. Then their frequency ratio will be
A)
1 : 3 done
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B)
2 : 1 done
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C)
3 : 1 done
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D)
1 : 2 done
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question_answer8)
The wavelength of a sound wave is 66m, calculate the frequency of the wave if the velocity of sound is 330 m/s.
A)
1.5 Hz done
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B)
10 Hz done
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C)
5 Hz done
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D)
7 Hz done
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question_answer9)
Clapping of our hands produces
A)
transverse waves done
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B)
light waves done
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C)
periodic waves done
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D)
pulse done
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question_answer10)
Light wave is an example of
A)
longitudinal wave done
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B)
electromagnetic wave done
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C)
transverse wave done
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D)
both (b) & (c) done
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question_answer11)
Name the type of wave which is produced in air when tuning fork is struck in air.
A)
transverse done
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B)
longitudinal done
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C)
light done
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D)
none of these done
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question_answer12)
The wave produced inside the water is
A)
only longitudinal done
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B)
only transverse done
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C)
both (a) and (b) done
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D)
none of these done
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question_answer13)
In a wave motion, the particles oscillate in the direction of wave propagation. The wave is
A)
transverse done
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B)
longitudinal done
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C)
both (a) and (b) done
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D)
none of these done
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question_answer14)
The wave in which crests and troughs are formed
A)
longitudinal wave done
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B)
transverse wave done
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C)
both (a) and (b) done
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D)
none of these done
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question_answer15)
Which wave does not required material medium for their propagation?
A)
electromagnetic waves done
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B)
mechanical waves done
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C)
both (a) and (b) done
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D)
none of these done
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question_answer16)
Mechanical (elastic) waves can travel
A)
in a medium but not in a vacuum done
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B)
in a vacuum but not in medium done
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C)
in a vacuum as well as in a medium. done
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D)
neither in vacuum nor in a medium. done
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question_answer17)
Waves formed on the water surface are
A)
transverse done
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B)
longitudinal done
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C)
both transverse and longitudinal done
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D)
neither transverse non longitudinal done
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question_answer18)
Sound waves are
A)
longitudinal done
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B)
transverse done
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C)
partly longitudinal, partly transverse done
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D)
sometimes longitudinal, sometimes transverse. done
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question_answer19)
Which of the following statement is true?
A)
both light and sound wave are longitudinal done
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B)
both light and sound waves can travel in vacuum. done
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C)
both light and sound waves are transverse done
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D)
sound waves in air are longitudinal while the light waves are transverse. done
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question_answer20)
Echo is a type of
A)
reflected sound done
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B)
refracted sound done
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C)
neither reflected sound nor refracted sound done
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D)
none of these done
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question_answer21)
To hear distinct echo, the minimum distance of a reflecting surface should be
A)
17 metres done
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B)
34 metres done
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C)
68 metres done
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D)
340 metres done
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question_answer22)
Which one of the following material will reflect sound better?
A)
thermocol done
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B)
curtain made from cloth done
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C)
steel done
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D)
paper done
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question_answer23)
Multiple echoes are also called
A)
reflecting sound done
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B)
reverberation done
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C)
ultra sound done
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D)
none of these done
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question_answer24)
An echo of the sound produced can be heard only if it reaches our ear after
A)
\[\frac{1}{15}\]th of a second done
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B)
\[\frac{1}{13}\]th of a second done
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C)
\[\frac{1}{10}\]th of a second done
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D)
\[\frac{1}{5}\]th of a second done
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question_answer25)
A boy standing 70m from a high wall claps his hands. After how much time is an echo heard? (The speed of sound in air is\[\text{35}0\text{ m}{{\text{s}}^{-\text{1}}}\])
A)
4 s done
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B)
0.4 s done
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C)
104 s done
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D)
1.2 s done
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question_answer26)
If you hear a gunshot 2 seconds after it is fired, how far away from the gun are you? (speed of sound in air = 330 m/s)
A)
330 m done
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B)
335 m done
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C)
320 m done
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D)
325 m done
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question_answer27)
Statement I: - Reflection of sound is called echo. Statement II: - SONAR is working based on principle of echo.
A)
Statement-I is true and Statement-II is true and statement-II s the correct explanation of Statement-I done
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B)
Statement-I is true and Statement-II is true and statement-II is not the correct explanation of Statement-I done
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C)
Statement-I is true but Statement-II is false done
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D)
Statement-I is false but Statement-II is true. done
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question_answer28)
The intensity of sound is measured in the units of
A)
joule done
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B)
watts done
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C)
decibel done
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D)
none of these done
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question_answer29)
The characteristic of sound which distinguishes a feeble sound from a loud sound of the same frequency is
A)
loudness done
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B)
pitch done
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C)
music done
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D)
noise done
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question_answer30)
The amplitude of the sound wave describes its
A)
speed done
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B)
pitch done
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C)
loudness done
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D)
source done
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question_answer31)
Noise is produced by
A)
irregular and periodic vibrations done
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B)
regular vibrations done
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C)
regular and periodic vibrations done
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D)
irregular and non-periodic vibrations done
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question_answer32)
The loudness does not depend on
A)
amplitude of vibrations done
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B)
area of vibrating body done
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C)
frequency of vibration done
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D)
distance between the source and listener done
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question_answer33)
Pitch or shrillness of sound depends on
A)
frequency done
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B)
amplitude of vibrations done
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C)
both (a) and (b) done
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D)
none of these done
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question_answer34)
Two wave of the same pitch have amplitude in the ratio 1 : 2. What will be the ratio of their loudness?
A)
1 : 4 done
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B)
1 : 3 done
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C)
1 : 6 done
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D)
1 : 2 done
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question_answer35)
Match the following
List - A (subjective measurement) | List - B (objective measurement) |
1. Pitch | A. Intensity |
2. Loudness | B. Waveform |
3. Quality | C. Frequency |
A)
1 - a, 2 - b, 3 - c done
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B)
1 - c, 2 - a, 3 ? b done
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C)
1 - a, 2 - c, 3 - b done
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D)
None of these done
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question_answer36)
Regular periodic vibrations produce
A)
musical sound done
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B)
noice done
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C)
both (a) and (b) done
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D)
None of these done
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question_answer37)
Which of the following notes has the highest frequency
A)
Ma done
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B)
Sa done
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C)
Pa done
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D)
Nee done
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