Question # 1

Mercury is denser than water by time:

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13,6

10

15

20

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

Decrease in atmospheric pressure predicts:

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Rainy condition

Intense condition

Windy Condition

Pleasant condition

The SI unite of density is

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gcm-3

gm-3

gdm-3

kgm-3

S.I unit of pressure is :

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Nm^-2

Newton

Joule

Watt

Density is quantity:

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Scalar

Vector

Constant

None of these

Hydro meter is used to measure:

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Pressure

Density

Area

Volume

The devise used to measure the atmosphere pressure is:

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Rain gauge

Vacuum cleaner

Screw gauge

Barometer

Mass per unit volume is:

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Velocity

Work

Density

None

Ships and submarines float partially or completely according to:

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Newton's law

Pascal's law

Principle of floatation

None

Which one is more elastic ?

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Rubber

Steel

Copper

All has equal values

S.I unit of pressure is Pascal which is equal to?

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10 Nm^-2

1 Nm^-2

10² Nm^-2

10³ Nm^-2

According to Archimedes, upthrust is equal to

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Weight of displaced liquid

Volume of displaced liquid

Mass of displaced liquid

None of these

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

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