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Physics

Physics
The domain theory of magnetism applies to

Aluminium
Cobalt
Silver
Copper

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Physics
On a stationary sail boat, air is blown from a fan attached to the boat. The boat

spins around
moves in the same direction in which air blows
moves in opposite direction in which the air is blown
does not move

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Physics
Thermal expansion of materials arises from

Asymmetry of potential energy curve
Weak bonds
Strong bonds
Thermal vibrations

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Physics
A fresh egg when placed in salt water will

Float
Burst
Sink but will not go to the bottom
Sink and go to the bottom

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Physics
A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an

Microwave
Infrasonic wave
Ultrasonic wave
Audible wave

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Physics
A device used for converting a.c. into d.c. is called

Transformer
Dynamo
Induction coil
Rectifier

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MORE MCQ ON Physics

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