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Physics

Physics
In the absence of the earth's atmosphere, sky would appear

White
Black
Deep red
Blue

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Physics
Echo is heard due to

Interference
Reflection
Scattering
Refraction

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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?

Remains constant
Becomes zero
Increases exponentially
None of these

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Physics
Angle of friction and angle of repose are

Equal to each other
None of these
Proportional to each other
Not equal to each other

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Physics
Nuclear reactors used to produce electricity are based on

Nuclear fusion
Cold fusion
Nuclear fission
Superconductivity

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Physics
Electrical burns occur principally because of

The high energy of electrons
All of these
Radiation pulses of the electricity
The heat generated by the flow of electrical current through the body

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