Question # 1

The SI unite of density is

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gcm-3

gm-3

gdm-3

kgm-3

Which of the substances is the lightest one?

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Copper

Mercury

Aluminium

Lead

During the hot summer day the vlaue of atomospheric pressure is:

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Increase

Decreases

Constant

None of these

1 Pa is equal to

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NM

NM-1

JS

NM-2

The formula of Density is:

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m/v

v/m

m x v

None of these

Barometer was first set up by:

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Robert

Torricelli

Al Razi

Nil

Einstein mass energy equation is:

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E = mc

E = m2 c

E = mc2

E2 = mc

The unit of density is:

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kg^-1 m^-3

kg m^-1

kgm^-3

kgm^-2

The force acting on unit area at surface of a body is called:

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Strain

Elasticity

Force

Stress

When the stress crosses the elastic limit, then the body will :

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Break

Permanently deformed

Plasticity

None

1 litre is equal to:

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10² m³

10^-3 m³

10³m³

10⁶m³

Plasma is .......... state of matter .

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Molecular

Fourth

Smallest

Nil

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Physics 9th Class English Medium Unit 7 Online Test MCQs With Answers

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