Question # 1

Atmospheric pressure is measured by an instrument called:

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Barometer

Altimeter

Meter rod

Hydrometer

How many times Mercury is denser than water?

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12.5

13.6

76

76.5

The formula for centripetal force is:

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Fc = mv2

Fc = mr2

Fc = mv2 / r

Fc = m/v

Heat form one of a metal rod a reaches to the other by the process of

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convection

radiation

conduction

both (a) and (b)

Metals are good conductor of heat due to:

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Free electrons

Reamain same

Small size of their molecules

Rapid vibration of their atoms

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

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Increase

Decreases

Constant

None of these

F_x= 4 N and F_y=3N what is F?

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5N

1.5 N

16 N

9 N

Dependent quantities are taken on

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x - axis

-ve x -axis

y-axis

- y-axis

the to and fro motion of a body about its mean positionis called.

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Circular motion

Random motion

Rotatory motion

Vibratory motion

What flower is known as natural thermometer?

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Rose

Barasicca

Crocus

Tulip

Value of g on mercury is ___________ ms^-2.

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25.94

3.7

8.87

1.62

Most of the matter that fills the universe is in state:

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Solid

Plasma

Liquid

Gas

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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