Question # 1

The refractive index of ice is:

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1.00

1.33

1.31

2.42

Capacitors are mainly used for radio frequency tuning:

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Paper capacitor

Air capacitor

Mica capacitor

Electrolytic capacitor

For a normal person audible frequency range for sound wave lies between:

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10 Hz and 10kHz

20Hz and 20 kHz

25 Hz and 25 kHz

30Hz and 30 kHz

Which component is output device of computer?

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CPU

C.D

Keyboard

Monitor

Old people cannot hear sound above than:

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1000 Hz

15000 Hz

20000 Hz

In simple Harmonic motion, the acceleration of the body is _____ proportional to the displacement.

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Inversely

Directly

Equally

None of these

waves whose speed is equal to speed of light are:

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X-rays

sound rays

electromagnetic waves

shock waves

A group of instructions or a program which guides hardware to do work is called:

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Hardware

Micro processor

Memory

Software

Release of the energy by the sun is due to:

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Nuclear Fussion

Nuclear Fission

Burning of gases

Chemical reaction

The time required to complete one round trip (vibration) abut mena position is called:

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Time period

Freqency

Amplitude

None of these

The current which changes its direction is called:

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Current

A.C.

Conventional current

D.C.

Which is the most suitable means of reliable continuous communication between an orbiting satellite and earth:

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Mecrowaves

Radio waves

Sound waves

Any light waves

J.J Thomson observed deflection of cathode rays in:

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1895

1896

1897

1998

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