Question # 1

As we go up the value of atmospheric pressure is

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Decreased

Increased

Remain constnat

None of these

The bad conductor of heat is:

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Iron

Copper

Air

Aluminum

Those objects which do not conduct electricity are called.

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Insulator

Semi conductor

Nil

Conduct

The value of g on moon's surface is 1.6 ms^-2. what will be the weight of a 100 kg body on the surface of the moon?

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100 N

160 N

1000 N

1600 N

Alcohol has specific heat in Jkg^-1 K^-1 is:

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2500

4200

1000

138.6

Which of the following is produced in refrigerators by evaporation of a liquefied gas?

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Heating

Cooling

Freezing

Melting

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)

Which of the following is the unit of momentum?

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Nm

kgms^-2

Ns

Ns^-1

Paratrooper while coming down attains a velocity called.

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Variable velocity

Uniform velocity

Average velocity

Terminal velocity

The quantities that describe completely by magnitude and direction are.

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Scalar

Vector

Base

Derived

The radiation from sun is:

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Alpha

Gamma

Radio

Ultraviolet

Atmospheric pressure is measured by an instrument called:

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Barometer

Altimeter

Meter rod

Hydrometer

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

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Solid

Plasma

Liquid

Gas

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