Question # 1

The frequency of the carrier waver used of radio transmission:

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30 KHZ

40 KHZ

50 KHZ

60 KHZ

The SI unit of resistance:

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Volt

Ampere

Ohm (Ω)

Farad

The device used for turning a circuit ON or OFF is.

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Switch

Fuse

Circuit breaker

Earth wire

The Country which launched space station Mir into space:

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France

British

America

Russia

Which of the following is a natural fiber:

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Teflon

Cotton

Acrylic

Nylon

One thouseand watt power is called.

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One mega watt

One giga watt

One hector watt

One kilowatt

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.

Prodcut of forces and distance is called.

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Work

Energy

Power

Heat

The production of electricity from tides of water is called:

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Wind power

Thermal power

Tidal power

Nuclear power

The major function of electronic devices is to amplify the ........ signals.

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Stronge electric

Semi strong electric

Both a and c

weak electric

The light of laser is:

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monochromatic

dichromatic

trichromatic

Tetrachrmatic

The Si unit of power is;

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Joule

Ohm

Watt

Ampere

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

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Argon

Neon

Helium

Hydrogen

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