Question # 1

In Ohm's law V =

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V/I

I

RI

R/I

The Phenomenon of emission of radiations from radioactive elements is called:

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Doping

Allotropy

Radioactivity

Induction

Which of the following is an input device:

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key board

printer

monitor

CPU

Production of electricity with help of high tides is called.

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Tidal power

Tharmal power

Wind power

Geothermal power

The part of atmosphere where all living bodies reside is:

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8 to 20 kilometers

8 to 40 kilometers

8 to 30 kilometers

2 to 10 kilometers

man landed on the moon for the first time in:

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July 20, 1979

July 20, 1976

July 20 ,1969

July 20, 1970

The production capacity of research reactor PARR II is;

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17 kilowatt

27 kilowatt

37 kilowatt

47 kilowatt

Cause of air pollution is.

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Carbon Monoxide

Sulphur di oxide

Nitrogen oxide

All of them

In October 4, 1957...........launched first artifcial setellites.

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America

India

Russia

Pakistan

Which radiation have zero mass number

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Alpha radiation

Beta ratiation

Gamma radiation

None of these

Hovering satellite completes its rotation in 24 hours at the height of:

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360 km

3600 km

36000 km

360000 km

The Si unit of energy :

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meter per second

meter

joule

kilowatt hour

The energy produced by the breakdown of chemical bond between atoms:

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Light energy

chemical energy

electrical energy

kinetic energy

In P-type semi -conductior, most of the current is due to.

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Free electron

Holes

Positive ions

Heat

The first man went into space in

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1965

1961

1971

1991

The SI unit of capacitance is:

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Farad

Ampere

Ohm

Newton

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