Question # 1

When a stress on a body crosses the limit, called the?

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Elastic limit

Plastic limit

Failure point

Breaking point

Mass per unit volume is:

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Velocity

Work

Density

None

Unit of density is:

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Kg/m3

kg/m2

kg/m

kg

Plasma is in ___________ form.

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Moleculer

Kinetic

Static

Ionized

Atmospheric pressure acts in:

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upward direction

Down ward direction

Opposite of force

All direction

At sea level, the atmospheric pressure is about.

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101320 Pa

101300 Pa

10110 Pa

10112 Pa

Newton per meter square is a unit of:

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Pressure

Stress

Both A and B

Force

At sea level, the height of mercury column in mercury barometer is approximately:

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72 cm

74 cm

76 cm

78 cm

As we go up the density of air in the atmosphere:

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Decreases

Increases

Remain constnat

None of these

The vacuum in barometer is called:

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Deep vacuum

Mercury vacuum

Torricellian vacuum

None of above

Highly conducting state of matter is:

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Solid

Liquid

Gas

Plasma

1 litre is equal to:

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10² m³

10^-3 m³

10³m³

10⁶m³

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

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