Question # 1

The characteristics of sound by which we can distinguish between two sounds of same loudness and pitch is called.

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Intensity

Quality

Loudness

Pitch

The mirror whose outer surface is reflecting is called:

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Concave mirror

Convex mirror

Mirror

Lens

The more negative potential of grid, the more electrons will be:

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Attracted

Repelled

Attracted as well as repelled

Neither attracted nor repelled

An electric current in conductors is due to the flow of:

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Positive ions

Negtive ions

Positive charge

free electron

The current which changes its direction is called:

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Current

A.C.

Conventional current

D.C.

Battery converts chemical energy into which energy:

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Mechanical

Electrical

Thermal

None of these

The speed of sound in a liquid is …………..than that in gases:

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Ten times

Fifteen times

Five times

Two times

If we double both the current and the voltage in a circuit while keeping its resistance constant, the power.

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remains unchanged

halves

doubles

four time

The unit of resistance is:

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Ω-m

Ω

V

C

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Physics 10th Class English Medium Unit 5 Online Test MCQs With Answers

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