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Physics

Physics
Which determines the frequency of a sound wave?

Medium
Source
Speed
Amplitude

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Physics
What is the SI unit of Power?

Pascal
Newton
Watt
Boyle

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Physics
The type of mirror used in automobiles to see the traffic on the rear side is

Plane
Concave
Convex
Plano-Convex

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Physics
An ideal gas cannot be

Solidified
None of these
Both A & B
Liquified

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Physics
Vegetables are cooked in lesser time by adding a pinch of salt while cooking because

Latent heat of vaporization of water decreases
Latent heat of vaporization of water increases
Boiling point of water decreases
Boiling point of water increases

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Physics
Which best describes how air moves during convection?

Warm air falls down
Air always falls down
Cool air is replaced by warm air
Cool air falls down

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