Question # 1

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

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Doping

Allotropy

Radioactivity

Induction

Pakistan made atomic explosion on:

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May 28,1996

May 28,1998

May 28, 1999

may 28, 2000

By burning fossil fuels we get.

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Solar power

Tidal power

Nuclear power

Thermal power

Which radiation have zero mass number

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Alpha radiation

Beta ratiation

Gamma radiation

None of these

Excessive growth in population is also one reason of enhancement in.

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Pollution

Radiations

Conduction

None of them

We can save eenrgy.

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1- By increaisng personal vehicles.

2- By making vehicles of beavier bodies.

3- By not walking

4- By avoiding unnecessary of energy.

Voltmeter is connected in.

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Parallel position

Series position

Both a and b

None of these

The number of hydrogen isotopes;

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3

2

8

10

The potential difference between tow paints in a circuit is measured by:

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Galvanometer

Ammeter

Voltmeter

Multi - meter

Emission of ratiations from nucleus is said to be

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Chemical reaction

Atomic reaction

Radioactivity

Nuclear fission

Pakistan launched its first rocket namely Rahber into space on:

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June 7,1972

June 7,1982

June 7,1962

June , 1979

Which type of rays are used in the solar system fitted on ships and submarines to find the hidden secrets under water:

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x - rays

C.T Scan

Ultrasound

Light

Which of the following is an input device:

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key board

printer

monitor

CPU

The cause of thermal pollution;

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only green house effect

only nuclear reactors

only fossil fuels

All , A, B and C

In 1989 "SUPARCO" establshed an earth station at.

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America

London

Rawat

England

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