Question # 1

The SI unit of resistence.

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Ampere

Volt

Hertz

Ohm

A device that decreases or increases the A.C voltage:

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Transformer

Ammeter

Voltmeter

Fuse

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

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Argon

Neon

Helium

Hydrogen

Breaking of the heavy nucleus of an atom is called:

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Nuclear fission

Nuclear fusion

conservation

pollution

Recording of electrical activity of brain is said to be:

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ultrasound

MRI

E.E.G

E.C.G

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

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one

Two

Three

Four

Word FAX is short form of.

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Facsiline

Facsimile

Fasimile

None of these

Which of the following are electromagnetic waves:

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sound

water waves

Ultrasound

light

In Brazil, most of the vehicles run with:

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petrol

Bio gas

Alcohol

CNG

analogue signal is recorded on.

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Magnetic tape

Floppy disk

Hard Disk

C.D

The constant in Ohm's law is.

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Current

Resistance

Potential difference

Charge

Themethod of production of electricity that does not produce pollution is.

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Hydroelectirc power

Thermal power

Nuclear power

Burning of biogas

The conversion of the kinetic energy of running water to electrical energy is called

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power production

Thermal power

Hydroelectric power

Nuclear power

When a ray of light passes from a denser to a rare medium it;

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bends away form the normal to the interface

bends towards the normal

does no bend

non of the above

Which of the following is a brain of computer?

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Central processing unit

Mouse

Monitor

Hard disc

The examples of semi - conductors:

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sodium and potassium

calcium and potassium

Germanium and silicon

carbon and nitrogen

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