Question # 1

Cream separater works on:

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Centrifuge principle

Centripetal force

Both

None

Stress is defined as

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Stress = Force/ Area

Stress = Area/Force

Stress = Area/ Volume

Stress = Mass/ Volume

The rage of change of momentum is equal.

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Mass

Force

Weight

None

The product of mass and velocity is called ................. .

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Momentum

Force

Acceleration `

Nil

If the direction of motion of the force is perpendicular to the direction of motion of the body, then work done will be

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Maximum

Minimum

Zero

None of these

If the weight body is greater then tension then body will.

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Move upward

move downward

not move

None

The energy store in an atom or molecule due to intermolecular force is:

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Kinetic energy

Potential energy

Internal energy

G.P.E

Kinetic energy is possessed by a body by:

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Virtue of motion

Height

Rest

Nil

When center of gravity is at the highest position body will be in:

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Neutral equilibrium

Stable equilibrium

Unstable equilibrium

None of these

In SI units, the value of gravitational constant 'G' is

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6.673 x 10-9 Nm2 kg-2

6.673 x 10-10 Nm2 kg-2

6.673 x 10-11 Nm2 kg-2

6.673 x 10-12 Nm2 kg-2

A body has translatory motion if it moves along a.

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Straight line

Curved path

Line without rotation

Circle

The bad conductor of Heat is:

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Iron

Copper

Air

Aluminium

Outer edge of the curved road is elevated to prevent

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Circular motion

Centripetal force

Skidding

Protection

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