Question # 1

The SI unit of resistance:

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Volt

Ampere

Ohm (Ω)

Farad

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

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Doping

Allotropy

Radioactivity

Induction

The energy of moving charges is called:

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Light energy

Heat energy

Chemical energy

Electrical energy

The number of hydrogen isotopes;

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3

2

8

10

Which of the following is used as rectifier;

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semi - conductor diode

resistors

capacitors

Germanium

What discovered radioactivity?

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Einstein

Newton

J.J. Thomson

Henry Becquerel

the number of (101)₁₀ in decimal is equal to .......... inbinary.

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0101111

0000101

10101101

1100101

Which of the following is used as fuel in Rocket:

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liquid gas

liquid carbon dioxide

liquid ammonia

Ll of the above

Energy resources consume dby industries is approximately.

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10%

20%

30%

50%

In Ohm's law V =

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V/I

I

RI

R/I

The part of atmosphere where all living bodies reside is:

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8 to 20 kilometers

8 to 40 kilometers

8 to 30 kilometers

2 to 10 kilometers

The mass of Beta particle:

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0

4

2

1

Operation " 2+3" in computer performed by.

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CU

CPU

ALU

None of these

Cause of air pollution is.

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Carbon Monoxide

Sulphur di oxide

Nitrogen oxide

All of them

Galvanometer is used to.

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Detects the current

Measure the current

Measure the resistance

Measrue the voltage

Multi-meter is also called.

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EVO

OVE

AVO

V0A

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