Question # 1

Power of hair dryer is:

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1000 W

750 W

10 W

75 W

Which is the unit of energy:

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KWh

Electron volt

Joule

All of above

What is fitted in telephone receiver?

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Electromagnet

Diaphragm

Both a and b

None of these

For observing how fast plants are absorbing phosphate fertilizer we use.

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I.131

Ph -32

Co-60

Ar-40

The refracted light striking to the side of prism is called:

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Refracted ray

Incident ray

Reflected ray

Emergent ray

Which process is involved to store charge in capacitors:

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Rubbing

Electrostatic induction

Conduction

Electromagnetic induction

Changing magnetic field in a closed circuit can induce:

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e.m.f

Electric current

Force

Both A and B

When a heavy nucleus splits into lighter nuclei,the process would.

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Release nuclear energy

absorb nuclear energy

Release Chemical energy

Absorb Chemical Energy

At extreme position potential energy of the pendulum is:

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Maximum

Minimum

Both a and b

Zero

One joule per coulomb is called:

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Volt

Farad

Ampere

Tesla

Shock absorbers in automobiles are one practical application of:

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SHM

Random motion

Damped motion

None of these

What does the term e-mail stand for:

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Emergency mail

Electronic mail

Extra mail

External mail

Level of noise recommended in eight, hour work day:

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80-90 dB

80-85- dB

85-90 dB

90-95 dB

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