Question # 1

The value of latent heat of vaporization of water is:

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2.26 x 10⁶ Jkg^-1

2.29 x 10⁵Jkg^-1

2.26 x 10^-6Jkg^-1

3.29 x 10^-5Jkg^-1

Water freezes at .

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0^o F

32 ^oF

-273 K

0 K

Pressure is quantity.

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Vector

Scalar

Base

Derived

The S.I unit of power is :

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j/s2

J

W

J/M2

One Megawatt is equal to :

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1 × 106 w

1 × 102 kw

1015 w

Nil

Rolling friction is___________ then sliding friction :

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Greter

Less

Some

Half

If velocity of a body becomes half that its energy K.E will be decrease to:

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Zero

Half

Double

4 Times

Kinetic and potential energy are the kinds of energy:

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Chemical

Nuclear

Light

Mechanical

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

Two forces of 2N and 4N are acting in opposite directions, Their resultant force will be

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2 N

4 N

6 N

8 N

The motion of a body is straight line is.

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Random motion

Linear motion

Translatory motion

Circular motion

The rage of change of momentum is equal.

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Mass

Force

Weight

None

The number of forces that can be added by head to tail rule are

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2

3

4

Any Number

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