Question # 1

which can be used to distinguish between insulators and conductors:

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electricity

telescope

temperature

electroscope

When did Michael Faraday discover Electromagnetic induction?

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1841

1831

1821

1811

It mass of bob o a simple pendulum is doubled, its time period.

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is doubled

become four times

remains same

none of the above

The SI unit of electric field intensity is:

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NC-2

NC-1

Ns

Nm-1

In A.C. generator flux will be zero if coil is to the field.

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90^o

45^o

Parallel

Inclined

The disturbance travelling in a medium is called:

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Wave motion

Simple harmonic motion

Motion

both a and b

The energy is transferred from one place to another:

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Through matter

Thouth waves

both a and b

None of these

1 MB = ________________ Kilobytes

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1022

1023

1024

1025

The output of a NAND gate is 0 when

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Both of its inputs are 0

Both of its inputs are 1

any of its inputs is 0

any of its inputs is 1

diamond des not conduct electricity, because it has no:

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free electrons

free protons

free neutrons

free positive charge

Mice can hear frequencies upto:

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100, 000 Hz

25.000 Hz

120,000 Hz

1,000 Hz

The waves in which particle of the medium vibrate parallel to the direction of waves are called

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Longitudinal waves

Transverse waves

Electromagnetic waves

both b and c

The voltage is decreased by:

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Step-up transformer

Step-down transformer

A.C. generator

D.C. Motor

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