Question # 1

GPS system consists of earth satellites:

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4

20

24

30

A Student claimed the diameter of a wire as 1.032 cm using vernier callipers. Upto what extent do your agree with it

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1 cm

1.0 cm

1.03 cm

1.032 cm

Water on cooling below 4 ^oC begins to:

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Expand

Contract

Boils

None of these

The rage of change of momentum is equal.

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Mass

Force

Weight

None

Action and Reaction are always on:

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Same body

Different bodies

Any body

None of these

Which one box is used to keep food hot and ice cream cold for long period?

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Iron box

Aluminium Box

Styrofoam box

Plastic box

That force which produces an acceleration of one metre per second per second in a body of one kilogram mass is called

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1 joule

1 newton

1 watt

1 ampere

Center of gravity of an irregular shaped body can be found with help of:

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Screw guage

Plumbline

Meter rode

Wedge

The value of latent heat of vaporization of water is:

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2.26 x 10⁶ Jkg^-1

2.29 x 10⁵Jkg^-1

2.26 x 10^-6Jkg^-1

3.29 x 10^-5Jkg^-1

Which gas is used inspite of Freon gas in refrigerator?

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CO₂

H₂

NH₃

N₂

On heating Air becomes.

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Heavier

Lighter

Remain same

None

Unit of Resultant force is:

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Nm^-2

N.m

Nm^-1

N

If mass of a body becomes half that its energy K.E will be reduce to:

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Zero

Half

Double

4 Times

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Physics 9th Class English Medium Online Test MCQs With Answers

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