Light exhibits dual property such as wave nature and particle nature. Which one of the following properties given below exhibits the particle nature of light?
A)
Radioactivity
done
clear
B)
DVD reader
done
clear
C)
Cellular wave
done
clear
D)
Radio wave
done
clear
E)
None of these
done
clear
View Answer play_arrow
What is the critical angle of water for which refractive index is 1.33?
A)
\[24.2{}^\circ \]
done
clear
B)
\[30.2{}^\circ \]
done
clear
C)
\[48.6{}^\circ \]
done
clear
D)
\[44.4{}^\circ \]
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is an example of total internal reflection?
A)
Water
done
clear
B)
Crystal glass
done
clear
C)
Plasma
done
clear
D)
Optical fiber
done
clear
E)
None of these
done
clear
View Answer play_arrow
Complete the diagram showing the refracted ray and the emergent ray given in the figure below?
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
E)
None of these
done
clear
View Answer play_arrow
Name the pattern of magnetic field shown in the figure given below.
A)
Straight wire
done
clear
B)
Circular loop
done
clear
C)
Solenoid
done
clear
D)
Bar Magnet
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following represents the direction of magnetic field in the figure of Fleming Left Hand Rule as shown below?
A)
1
done
clear
B)
2
done
clear
C)
3
done
clear
D)
4
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following components helps in change of direction of current in the electric generator?
A)
1
done
clear
B)
2
done
clear
C)
3
done
clear
D)
4
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which types of material is used in the core of the electromagnet?
A)
Alloy
done
clear
B)
Steel
done
clear
C)
Soft iron
done
clear
D)
Magnesium
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is a renewable sources of energy?
A)
Natural Gas
done
clear
B)
Petroleum
done
clear
C)
Coal
done
clear
D)
Wind Energy
done
clear
E)
None of these
done
clear
View Answer play_arrow
The device shown in the figure is used to generate electric energy using natural resources. It is also one of the non-polluting sources of energy and one of the cheapest sources of energy. Name of the device is:
A)
Wind Mill
done
clear
B)
Thermal Power Plant
done
clear
C)
Hydroelectric Power plant
done
clear
D)
Magnesium
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is responsible for the production of energy at the nuclear power plant?
A)
Nuclear fission
done
clear
B)
Nuclear fusion
done
clear
C)
Chemical reaction
done
clear
D)
Biological reaction
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is a balanced chemical equation?
A)
\[Mn{{O}_{2}}+4HCl\to MnC{{l}_{2}}+C{{l}_{2}}+2{{H}_{2}}O\]
done
clear
B)
\[Fe+CuS{{O}_{4}}\to FeS{{O}_{4}}+CU\]
done
clear
C)
\[{{H}_{2}}+{{N}_{2}}\to N{{H}_{3}}\]
done
clear
D)
\[C+{{O}_{2}}\to C{{O}_{2}}\]
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following reaction given below is a displacement reaction?
A)
\[Mn{{O}_{2}}+4HCl\to MnC{{l}_{2}}+C{{l}_{2}}+2{{H}_{2}}O\]
done
clear
B)
\[Fe+CuS{{O}_{4}}\to FeS{{O}_{4}}+CU\]
done
clear
C)
\[{{H}_{2}}+{{N}_{2}}\to N{{H}_{3}}\]
done
clear
D)
\[C+{{O}_{2}}\to C{{O}_{2}}\]
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is the reason responsible for rancidity?
A)
Reduction of oil and fats
done
clear
B)
Oxidation of oil and fats
done
clear
C)
Decomposition of oil and fats
done
clear
D)
Condensation of oil and fats
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following statement is correct? Statement 1: Butylated hydroxyanisole is an anitoxidant. Statement 2: Antioxidants are used to preserve the edible food materials.
A)
Both the statement 1 and 2 are correct
done
clear
B)
Statement 1 is correct and 2 is incorrect
done
clear
C)
Statement 1 is incorrect and 2 is correct
done
clear
D)
Both the statement 1 and 2 are incorrect.
done
clear
E)
None of these
done
clear
View Answer play_arrow
How does acid reacts with methyl orange?
A)
It gives blue color
done
clear
B)
It gives yellow color
done
clear
C)
It gives green color
done
clear
D)
It gives red color
done
clear
E)
None of these
done
clear
View Answer play_arrow
The water soluble bases are called:
A)
Salt
done
clear
B)
Alkalies
done
clear
C)
Aqueous
done
clear
D)
concentrated salt
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is a double salt?
A)
Sodium sulphate
done
clear
B)
Potassium carbonate
done
clear
C)
Potash alum
done
clear
D)
Copper chloride
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is the poorest conductor of electricity?
A)
Copper
done
clear
B)
Aluminium
done
clear
C)
Silver
done
clear
D)
Lead
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is the most reactive metal?
A)
Na
done
clear
B)
Al
done
clear
C)
Fe
done
clear
D)
Cu
done
clear
E)
None of these
done
clear
View Answer play_arrow
What is the molecular formula of copper pyrite?
A)
\[CuS\]
done
clear
B)
\[CuFe{{S}_{2}}\]
done
clear
C)
\[CuFeS\]
done
clear
D)
\[CuFe\]
done
clear
E)
None of these
done
clear
View Answer play_arrow
What is the IUPAC name of the compound given below?
A)
2, 3- dimethyl pentanoic acid
done
clear
B)
3, 4- dimethyl pentanoic acid
done
clear
C)
1, 3- dimethyl pentanoic acid
done
clear
D)
2, 4- dimethyl pentanoic acid
done
clear
E)
None of these
done
clear
View Answer play_arrow
The boiling point of methane is:
A)
\[162{}^\circ C\]
done
clear
B)
\[-120{}^\circ C\]
done
clear
C)
\[-162{}^\circ C\]
done
clear
D)
\[120{}^\circ C\]
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is insoluble in water?
A)
Methanol
done
clear
B)
Ethanol
done
clear
C)
Butanol
done
clear
D)
Pentanol
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is true for Doberenier's classification of elements?
A)
The properties of the elements are the periodic function of atomic number
done
clear
B)
In a group of three elements, the average atomic mass of two extreme elements is equal to the atomic mass of middle elements
done
clear
C)
It has no drawbacks
done
clear
D)
It was widely accepted by the chemist around the world
done
clear
E)
None of these
done
clear
View Answer play_arrow
Who among the following said that there are only 56 elements exists in nature and no new elements will be discovered in future?
A)
Mendeleev's
done
clear
B)
Bhor
done
clear
C)
Newlands
done
clear
D)
Chadwick
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following organism shows holozoic mode of nutrition?
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
E)
None of these
done
clear
View Answer play_arrow
What is the length of small intestine in human?
A)
3 m
done
clear
B)
4 m
done
clear
C)
5 m
done
clear
D)
6 m
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following enzyme helps in breaking down of protein in small intestine?
A)
Amylase
done
clear
B)
Lipase
done
clear
C)
Trypsin
done
clear
D)
All of these
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which types of respiration takes place in mitochondria?
A)
Aerobic
done
clear
B)
Anaerobic
done
clear
C)
Acidic respiration
done
clear
D)
All of these
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which type of movement helps in the growth of roots of the plant deep into the earth?
A)
Phototropism
done
clear
B)
Geotropism
done
clear
C)
Hydrotropism
done
clear
D)
Chemotropism
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which plant hormone is responsible for the rapid cell division in plants and growth of the shoot of plants towards the Sunlight?
A)
Auxin
done
clear
B)
Gibbrellines
done
clear
C)
Cytokinins
done
clear
D)
Absicic Acid
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which mode of reproduction is shown by the organism given below in the figure?
A)
Binary fission
done
clear
B)
Regeneration
done
clear
C)
Budding
done
clear
D)
Fragmentation
done
clear
E)
None of these
done
clear
View Answer play_arrow
The male or female sex cell is also called:
A)
Sperm
done
clear
B)
Gametes
done
clear
C)
Egg
done
clear
D)
Zygote
done
clear
E)
None of these
done
clear
View Answer play_arrow
The figure given below is a female reproductive organ. What does 4 represents in the figure given below?
A)
Ovary
done
clear
B)
Uterus
done
clear
C)
Cervix
done
clear
D)
Fallopian tube
done
clear
E)
None of these
done
clear
View Answer play_arrow
The new traits which are visible in the physical appearance of an organism is called:
A)
Genotype
done
clear
B)
Phenotype
done
clear
C)
Inheritance
done
clear
D)
Variation
done
clear
E)
None of these
done
clear
View Answer play_arrow
The combination of sex chromosomes in male is:
A)
XX
done
clear
B)
YY
done
clear
C)
XY
done
clear
D)
XYX
done
clear
E)
None of these
done
clear
View Answer play_arrow
If a food chain have 50000 J of energy at the first trophic level, then find the amount of energy at the fifth trophic level of the food chain.
A)
5000 J
done
clear
B)
500 J
done
clear
C)
50 J
done
clear
D)
5 J
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following material is biodegradable?
A)
DDT
done
clear
B)
plastic
done
clear
C)
Jute
done
clear
D)
Glass
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following is the correct food chain?
A)
Grass \[\to \]Grasshopper \[\to \]Frog \[\to \]Snake\[\to \] Eagle
done
clear
B)
Grass \[\to \] Grasshopper \[\to \]Snake\[\to \]Frog\[\to \] Eagle
done
clear
C)
Grass \[\to \] Frog \[\to \]Grasshopper\[\to \]Snake\[\to \]Eagle
done
clear
D)
Grass \[\to \] Grasshopper \[\to \] Frog \[\to \] Eagle\[\to \]Snake
done
clear
E)
None of these
done
clear
View Answer play_arrow