Question # 1

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

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Free electron

Holes

Positive ions

Heat

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

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Doping

Allotropy

Radioactivity

Induction

Which element is used to make LED?

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Aluminum

Calcium

sodium

Arsenic

The total production capacity of Pakistan's first nuclear power plant is.

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10 mega watt

137 mega watt

300 mega watt

40 mega watt

Natural gas is measured in:

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square meter

cubic meters

Btu

B and C both

A device which does not allow current to pass through it overt a certain limit:

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Switch

circuit breaker

Resistor

Fuse

English word "9" has been divided into ............ segments.

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5

6

7

8

Recording of electrical activity of brain is said to be:

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ultrasound

MRI

E.E.G

E.C.G

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

Galvanometer is used to.

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Detects the current

Measure the current

Measure the resistance

Measrue the voltage

The principal of light on whihc the fibre optics works is.

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Reflection

Refraction

Total internal reflection

Dispersion

SUPARCO came into being.

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In 1956

in 1961

in 1973

In 1990

Production of electricity with help of high tides is called.

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Tidal power

Tharmal power

Wind power

Geothermal power

the test that measures the electrical activity of the heart:

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E.C.G (Electrocardiogram)

E.E.G (Electroencephalography)

M.R.I (Magnetic resonance imaging)

Angiography

The instrument that measures current is called.

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Voltmeter

Circuit breaker

Ammeter

Switch

Which of the following is an neutral particle?

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Electron

Proton

Neutron

Alpha particle

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