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Physics

Physics
An object with a mass of 22 kg moving with a velocity of 5 m/s possesses a kinetic energy of :

110 J
275 J
2750 J
110 J

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Physics
Heat transfer by conduction occurs when molecules

None of these
Heated
Collide
Combine

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Physics
The width of depletion layer of a P-N junction

Increases with heavy doping
Is increased under reverse bias
Decreases with light doping
Is independent of applied voltage

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Physics
The absolute refractive index of any medium is always:

1
More than one
Less than one

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Physics
Identify the vector quantity from the following

Work
Heat
Time
Angular momentum

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Physics
Which of the following causes adiabatic temperature changes in atmosphere?

Latent heat of condensation
Partial absorption of solar radiation by the atmosphere
Deflection and advection
Expansion and compression of the air

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