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Physics

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

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

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Physics
The average kinetic energy of the molecules of an ideal gas is directly proportional to

Absolute temperature of the gas
Temperature of environment
Mass of Molecules
Velocity of Molecules

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Physics
The atmosphere is heated mainly by

Convection
Insolation
Radiation
Conduction

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Physics
Out of the following, which is not emitted by radioactive substance?

Electrons
Alpha particles
Electromagnetic radiations
Neutrons

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Physics
Which of the following has the longest wavelength?

Visible radiation
Infrared radiation
Ultraviolet radiation
X-ray radiation

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Physics
Ozone layer above the surface of Earth provides a shield against

Infra-red rays
X-rays
Gamma rays
Ultra-violet rays

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