Question # 1

Information storage device work on the principles of:

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Heat

Sound

Light

Magnetism

Electric field lines were introduced by:

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Faraday

Newton

Coulomb

Joule

Which of the following is not Processing?

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arranging

manipulation

calculating

gathering

The mirror whose outer surface is reflecting is called:

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Concave mirror

Convex mirror

Mirror

Lens

A transformer has 100 turns in its primary and 500 turns in secondary coil. If 6 volts D.C is applied across its primary, the voltage induced across its secondary coil will be:

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0 volt

30 volts

45 volts

60 volts

the distance between two consecutive trough or crest is called:

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wavelength

frequency

time period

amplitude

At room temperature, electrons cannot escape the metal surface due to ………….. of atomic nucleus:

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Repulsive forces

Attractive forces

Gravitational forces

Electromagnetic forces

What happens to the intensity or the brightness of the lamps connected in series as more and more lamps are added:

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Increases

Decreases

Remains the same

Cannot be predicted

The half life of plutonium²³⁶Pu₉₄is:

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2.00 years

2.35 years

2.79 years

2.85 years

Specific resistance of aluminium in (10^-8 Ω.m) is:

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1.7

2.75

5.25

1.69

Mice can hear frequencies upto:

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100, 000 Hz

25.000 Hz

120,000 Hz

1,000 Hz

The speed of sound in iron at 25 ^oC is ms^-1

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5950

5900

6950

6940

1 volt is equal to:

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JC

JC^-1

JC^-2

JC^-3

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10th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers

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