Question # 1

Fourth state of matter is:

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Solid

Plasma

Liquid

Gas

The force which keeps a body to move in a circle is called

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Gravitational force

Centripetal force

Centrifugal force

Rotational force

Evaporation causes:

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Melting

Boiling

Freezing

Cooling

SI unit of pressure is pascal, which is equal to:

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10⁴ Nm^-2

1 Nm^-2

10²Nm^-2

10³ Nm^-2

The substances through which heat does not conduct:

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Conductors

Bad conductors

Insulators

Both B and C

In which of the following state molecules do not leave their position?

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Solid

Liquid

Gas

Plasma

_______________ was a pupil of Galileo.

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Einstein

Robert

Al Razi

Torricelli

Outer edge of the curved road is elevated to prevent

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Circular motion

Centripetal force

Skidding

Protection

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 the above

Significant figures in 0.0010 are.

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One

Two

Three

Four

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

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Half

Three times greater

Double

Four times greater

The weight of body is 147 N, Its mass will be ________ when g = 10 ms^-2

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1.47 kg

14.7 kg

47 kg

1.51 kg

Rocket works on principle of ______________

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Action Reaction

Law of inertia

Mass energy

Nil

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