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Physics

Physics
The velocity of the sound is highest in

Vacuum
Water
Air
Metal

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Physics
Woollen cloth protects the body from cold because

External heat rays enter into the body through the woollen cloth
It reflects heat
It is a good conductor of heat
It is a poor conductor of heat

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Physics
What is the fundamental unit of amount of a substance?

Candela
Mole
Meter
Kelvin

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Physics
Solar cells work on the principle of

Photoconductive effect
Photoelectric effect
Photovoltaic effect
Photosynthesis

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Physics
The recoiling of gun is an example of which of the following?

Law of Conservation of Angular Momentum
Law of Conservation of Energy
Conversion of Kinetic Energy to Potential Energy
Law of Conservation of Linear Momentum

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Physics
Which, of the following radiations has the least wavelength ?

B-rays
G-rays
X-rays
A-rays

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MORE MCQ ON Physics

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