Question # 1

Old people can not hear sound above then _____ Hz

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1000

15000

20000

10000

In computer terminology information means:

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Any data

Raw data

Processed data

Large data

The SI unit of electric field intensity is:

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NC-2

NC-1

Ns

Nm-1

If a dielectric medium is present between two point charges them electrostatic force will be:

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Increased

Decreased

Vanishes

Remain same

The colour of live wire is:

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Black or blue

Green or yellow

White or grey

Red or brown

When a ray of light enters from denser medium to rare medium, the angle of incidence for which angle of refraction is 90^o is called:

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angle of incidence

critical angle

angle of refrection

None of these

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)

The index of refraction depends on:

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The focal length

The speed of light

the image distance

The object distance

The presence of fish by the other fish can be detected by:

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Magnetic field

Electric field

Gravitational field

All of above

1 volt is equal to:

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JC

JC^-1

JC^-2

JC^-3

Power of convex lens is 10 D. Its focal length is:

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100 m

10 m

1 m

0.1 m

How many possible solutions are there for a prblem?

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One

Two

Three

Multiple

Which combination forms NAND gate:

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AND & OR

AND & NOT

NOT & OR

NAND & NOT

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