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Physics

Physics
Stars appear twinkling because of ......... of light.

Scattering
Emission
Absorption
Reflection

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Physics
When light passes from one medium to another, this phenomenon of change in its direction is called ________

Refraction
Diffraction
No option is correct
Propagation

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Physics
As we go from Equator to North pole the value of ''g', the acceleration due to gravity

Increases
Decreases
Remains the same
None of these

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Physics
Refrigeration is a process which

Plasmolyses the bacteria
Inactivates the bacteria
Kills bacteria
Slows down the bacterial growth

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Physics
The energy associated with motion is called

Kinetic energy
Potential energy
Both A & B
None of these

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Physics
When hot-water is sprinkled on a hotter glass tumbler, it breaks because

Glass suddenly contracts
Glass suddenly expands
Glass reacts chemically with water
Water evaporates

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