Question # 1

The unit of work is :

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J

N

Ns

m

In a right angle triangle base is 4 cm and perpendicular is 3 cm length of diagonal will be:

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2 cm

5 cm

4 cm

6 cm

The unit of weather in map is :

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°C

°F

K

mbar

Amount of heat that flows in unit time is called:

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Rate of flow of heat

Q/t

Conductivity

Both A and B

The work done will be zero when the angle between the force and the distance is:

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45^o

90^o

60^o

180^o

Normal human body temperature is

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15oC

37oC

37oF

98.6oC

Which of the following is unit of momentum?

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Nm

Kgms^-2

Ns

Ns^-1

Brownian motion is an example of.

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Linear motion

Random motion

Circular motion

Vibratory motion

To make a body more stable ________ should be lowered:

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Axis of rotation

Center of gravity

Stabilty

None

P.E is equal to:

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mgh

1/2 mv²

W x F

None of these

The process in which heat is transmitted form one body to another by the interaction of atoms and the movement of free electrons is known as

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convection

radiation

conduction

both (a) and (b)

Dogs sweat through:

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Tongue

Legs

Skin

Glands

If the velocity of body decreases with time then acceleration will be.

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Positive

Negative

Variable

Uniform

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