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Physics

Physics
Sound cannot pass through

Water
Vacuum
Air
Steel

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Physics
Alternating current is converted into direct current by a

Rectifier
Oscillator
Dynamo
Transformer

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Physics
The rate at which energy is transferred is called

Watt
Volt
Power
Potential

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Physics
The impurity atoms with which silicon should be doped to make p-type semiconductors are

Boron
Phosphorus
Antimony
Germanium

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Physics
An object which absorbs all colours and reflects none appears:

White
Black
Grey
Blue

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Physics
A bomb at rest explodes into a large number of tiny fragments. The total momentum of all the fragments

Depends on the total mass of all the fragments
Depends on the speeds of various fragments
Is zero
Is infinity

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MORE MCQ ON Physics

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