Question # 1

X=A.B. This equation is used for which operation:

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AND

OR

NOT

NAND

Who developed the 1st practical electric battery:

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Alessandro volta

Faraday

Newton

None of these

Safe level of noise depends on factors:

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One

Two

Three

Four

Which is the most suitable means of reliable continuous communication between an orbiting satellite and earth:

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Mecrowaves

Radio waves

Sound waves

Any light waves

Unlike charges always:

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Repel each other

Attract each other

Sometimes repel and attract each other

Both A and B

The sound level of rustling of leave is:

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1 dB

20 dB

30 dB

10 dB

A positive electric charge:

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Attracts other positive charge

Repels other positive charge

Attracts a neutral particle

Repels a neutral particle

A positive electric charge:

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Attracts other positive charge

Repels other positive charge

Attracts a neutral charge

Repels a neutral chage

Electric potential is a quantity:

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Scalar

Vector

Base

All

The S.I unit of electric potential is:

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Watt

Joule

Coulomb

Volt

Which is used to investigate the properties of electron beam:

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LDR

Electroscope

Proton gun

Electron gun

At room temperature, electrons cannot escape the metal surface due to ………….. of atomic nucleus:

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Repulsive forces

Attractive forces

Gravitational forces

Electromagnetic forces

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Physics 10th Class English Medium Unit 4 Online Test MCQs With Answers

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