Question # 1

Word FAX is short form of.

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Facsiline

Facsimile

Fasimile

None of these

---------------- lasers are presently used for operating cataract and glaucoma.

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Argon

Neon

Helium

Hydrogen

The substances through which current can pass easily are called:

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conductors

insulators

Semi - conductors

Non - Electrolytes

A,C electric supply at homes:

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240 volt

50 volt

220 volt

1000 volt

Which of the following is an neutral particle?

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Electron

Proton

Neutron

Alpha particle

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

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Free electron

Holes

Positive ions

Heat

the converstion of Kinetic energy of running water to electricla energy is known as.

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Thermal power

Tidal power

Hydroelectric power

Nuclear power

The Si unit of current is:

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Ohm

Ampere

Kilowatt

Coulomb

Which circuits carry currents to the lights heaters and other appliances:

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parallel circuits

series circuits

common circuits

All of the above

The number of hovering satellites which can send transmissions to all over the world:

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one

Two

Three

Four

Emission of ratiations from nucleus is said to be

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Chemical reaction

Atomic reaction

Radioactivity

Nuclear fission

The instrument that measures current is called.

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Voltmeter

Circuit breaker

Ammeter

Switch

SUPARCO established on earth in.

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1998

1959

1961

1995

Which of the following are electromagnetic waves:

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sound

water waves

Ultrasound

light

The largest source of light is.

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Sun

Moon

Stars

Plants

Which radiation have zero mass number

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Alpha radiation

Beta ratiation

Gamma radiation

None of these

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