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Physics

Physics
Sound travels fastest in

Glass
Air
Vacuum
Water

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Physics
Convex mirror is generally used in ________

Opthalmoscope
Solar cookers
Reflector for head light
Rear view mirror

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Physics
The instrument used to measure the speed of the wind is

Altimeter
Dosimeter
Chronometer
Anemometer

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Physics
The sparkling of a diamond is due to

Polarisation of light
Total internal reflection of light
Refraction of light
Interference of light

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Physics
Solar energy is converted into chemical energy during

Osmosis
Transpiration
Photosynthesis
Diffusion

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Physics
What is the change in the angular momentum of a system as per the Law of Conservation of Angular momentum, if the total external torque acting is zero?

Increases exponentially
Remains constant
Becomes zero
None of these

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