Question # 1

Light from the sun contain thermal radiation of:

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Long wavelength

Short wavelength

Ultra violet rays

Visible light

A force of 10 N is making an angle of 30o with the horizontal. Its horizontal component will be

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4N

5N

7N

8.7N

The temperature of sun surface is:

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5000°C

4000°C

6000°C

7000°C

In velocity the body become double , then centripetal force will be:

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Half

Three times greater

Double

Four times greater

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

Which of the following material lowers friction when pushed between metal plates:

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Water

Fine marble poder

Air

Oil

The numebr .00580 is scientific notation is.

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5 .80 x 10⁵

5 .80 x 10^-4

5 .80 x 10^-3

5 .80 x 10^-2

If K = 150 N/m and elasticity is 0.20 m than:

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F = 30N

F= =31N

F = 32N

F = 29N

On heating Air become:

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Heavier

Lighter

Remain same

None of these

Pressure is quantity:

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Scalar

Vector

Constnat

Dependent

Clinical thermometer is used by:

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Astronomers

Doctors

Scientist

Chemists

The energy stored in coal is

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Heat Energy

Kinetic energy

Chemical energy

Nuclear energy

Land and sea breezes are the result of:

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Absorption

Radiation

Conduction

Convection

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