Question # 1

The product of charge ‘q’ and potential difference is equal to:

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Power

Force

Capacitance

Energy

The amount of current that can be painful is:

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0.005A

0.001A

1A

2A

In simple pendulum motion, restoring force is provided by:

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Air resistance

Tension in the string

Inertia

Weight of the body

Current is equal to:

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IR²

CV

Q/t

IR

Information storage devices work on the principles of

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Heat

Sound

Light

Magnetism

Focal length for concave mirror is :

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-ve

+ve

same

none of these

The mirror whose outer surface is reflecting is called:

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Concave mirror

Convex mirror

Lens

Mirror

What does the term e-mail stand for:

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Emergency mail

Electronic mail

Extra mail

External mail

Mice can hear frequencies upto:

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100, 000 Hz

25.000 Hz

120,000 Hz

1,000 Hz

By keeping resistance constant if we double the voltage then current will be:

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Double

4 times

¼ times

Half

Totally reflecting prism is used in:

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periscope

binoculars

periscope and binocular

telescope

A transformer has Np =100 and Ns =500 , if 6 volt D.C is applied across its primary, the induced voltage.

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0 V

30 V

45 V

60 V

CD which is made of soft material is called:

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Hard disk

Floppy disk

Iron disk

Copper disk

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