Question # 1

Electric potential and e.m.f.

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are the same terms

are the different terms

have different units

both b and c

Sun light consist of ____________ colour

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6

7

5

2

A device which has two ways communication is:

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Television

Radio

Hard disk

Mobile phone

The difference between the loudness of faintest audible sound and loudness of another sound is called:

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Pitch of sound

Quality of sound

Sound level

Intensity of sound

The mirror whose outer surface is reflecting is called:

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Concave mirror

Convex mirror

Lens

Mirror

electric intensity is a quantity:

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scalar

vector

base

none of these

The amount of current that can be felt is:

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1A

0.1A

0.001 A

2A

study of charges at rest is called:

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acoustics

electrostatics

electronics

electricity

The sound waves are the example of:

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Longitudinal waves

Transverse waves

Electromagnetic waves

x-rays

Which instrument measures the potential difference:

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Voltmeter

Barometer

Galvanometer

Ammeter

Mathematical formula of sound level (in bel) is:

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S.L = 10 log I/Io (bel)

S.L = K log I/Io (bel)

S.L = Log I/Io (bel)

S.L = 10 log Io/I (bel)

Electronics is a branch of:

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Mass

Applied Physics

Mechanics

Nuclear Physics

Total energy supplied in driving one coulomb of charge around a complete circuit is called:

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Potential

Potential difference

Electromotive force

Potential energy

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