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Physics

Physics
The atmospheric air is held to the Earth by :

Winds
Rotation of the Earth
Gravity
Clouds

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Physics
What is the change in the angular momentum of a system as per the Law of Conservation of Angular momentum, if the total external torque acting is zero?

Increases exponentially
Becomes zero
Remains constant
None of these

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Physics
On a rainy day, small oil films on water show brilliant colours. This is due to

interference
dispersion
polarization
diffraction

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Physics
Unit of impedance is ________

Henry
Tesla
Hertz
Ohm

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Physics
Tape recorder should not be kept near one of the following things :

Magnet
Radio
Electrical switchboard
Clock

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Physics
The threshold frequency is the frequency below which :

Photo current increases with voltage
Photo electric emission is not possible
Photo current decreases with voltage
Photo current is constant

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MORE MCQ ON Physics

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