Question # 1

The vacuum in barometer is called:

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Deep vacuum

Mercury vacuum

Torricellian vacuum

None of above

Which surface is bad emitter:

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White surface

Black surface

Coloured surface

Silver surface

The least count of screw gauge is.

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.01 mm

0.1 mm

.001 mm

.01 m

In solid, heat is transferred by:

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Radiation

Conduction

Convection

Absorption

If force is 200 N and length of spanner is 0.15 then torque will be:

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30 Nm

15Nm

20 Nm

10 Nm

The turning effect of force is called:

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Torque

Parallel force

Equilibrium

Couple

Newton's law of gravitation resembles with

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1st law of motion

2nd law of motion

3rd law of motion

Law of gravitation

Plasma is in ___________ form.

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Moleculer

Kinetic

Static

Ionized

a ball is thrown vertically upward. Its velocity at the highest point is.

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10 ms^-2

-10 ms^-1

Zero

none of them

Acceleration is produced by 20 N force it is due to:

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Inertia

Force

Momentum

None

Which of the following is an insulator?

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Wood

Glass

Plastic

Steel

Shining silvered surface is a best:

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Emitter

Absorber

Reflector

None of these

Hydraulic press in works on:

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Pascal's law

Hook's law

Archimedes law

Principle of floatation

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