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Physics

Physics
Speed of sound in air is unaffected by change in

Volume
Pressure
Humidity
Temperature

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Physics
Q = mcdT refers to

Heat Transfer formula
Specific Heat formula
Enthalpy formula
Heat of Vaporization

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Physics
'Therm' is the unit of

Light
Heat
Distance
Power

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Physics
A radioactive substance does not undergo any change (in mass or charge) during

Gamma-emission
Oxidation
Beta-emission
Alpha-emission

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Physics
Light beam which is highly directional is called:

Eraser
Maser
Laser
Grazer

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Physics
A doppler effect occurs when a source of sound moves

Towards you
None of these
Both A & B
Away from you

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