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Physics Practice Questions Set 8
For India's Top Government Exams
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The gas used in a refrigerator
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1 point
is cooled down on flowing
is heated up on flowing
is cooled down when compressed
is cooled down when expanded
Magnetic, electrostatic, and gravitational forces come under the category of ___
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1 point
non-contact forces
contact forces
frictional forces
non-frictional forces
The main source of energy in sun is
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1 point
nuclear fusion
nuclear fission
chemical reaction
mechanical energy
By what mechanism does scent spread all over the room if the lid is opened?
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1 point
Pressure in the bottle
Compression from the bottle
Diffusion
Osmosis
The Celsius temperature is a/an ___
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1 point
relative temperature
absolute temperature
specific temperature
approximate temperature
The dispersion process forms a spectrum due to white light falling on a prism. The light wave with the shortest wavelength
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1 point
refracts the most
does not change the path
refracts the least
is reflected by the side of the prism
Dual X
–
ray Absorptiometry (DEXA) is used to measure ___
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1 point
spread of solid tumor
bone density
ulcerous growth in the stomach
the extent of brain hemorrhage
Which one among the following colors has the highest wavelength?
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1 point
Violet
Green
Yellow
Red
Which one among the following is not a correct statement?
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1 point
Cathode rays are negatively charged particles
Cathode rays are produced from all the gases
Electrons are basic constituents of all the atoms
Hydrogen ions do not contain any proton
Light Emitting Diode (LED) converts
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1 point
light energy into electrical energy
electrical energy into light energy
thermal energy into light energy
mechanical energy into electrical energy
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