Question # 1

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

A data storage device is.

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Printer

Hard disk

Monitor

CPU

Image formed on a camera is:

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Real, inverted, and diminished

Virtual, upright and diminished

Virtual, upright and magnified

Real, inverted and magnified

The motion in which the friction reduces the mechanical energy of the system as times passes and the amplitude of motion reduces is called:

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SHM

Randum motion

Damped motion

None of these

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

Which is an example of a longitudinal wave:

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Sound wave

Light wave

Radio wave

Water wave

If focal length of a lens is 1m, then its power will be:

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1 D

0.5 D

1.5 D

1 D

The phenomenon in which radiations convert the matter into positive and negative ions is called:

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Radio activity

Excitation

Ionization

Electrolysis

The resistance of voltmeter is:

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zero

low

Very high

10Ω

The digits used in electronics are:

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1

0

0 and 1

1 and 2

Which combination forms NAND gate:

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AND & OR

AND & NOT

NOT & OR

NAND & NOT

What happen to the atomic number of an element which emits one alpha particle and a beta particles.

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Increases by 1

Stay the same

Decrease by 2

Decrease by 1

In computer terminology information means:

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Any data

Raw data

Processed data

Large data

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