Question # 1

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

Leslie's cube is a box of:

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Metal

Non-Metal

Wood

Metalloids

One horse power is equal to:

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746 W

749 W

764 W

794 W

The number of perpendicular components of a force are

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1

2

3

4

Normal human body temperature is

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15oC

37oC

37oF

98.6oC

Shining silvered surface is a best:

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Emitter

Absorber

Reflector

None of these

Both metals and non-metals transfer:

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Electricity

Heat

Both A and B

None of these

A temperature rise in the environment disturbs life called:

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Air pollution

Land pollution

Noice pollution

Thermal pollution

Stress is defined as

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Stress = Force/ Area

Stress = Area/Force

Stress = Area/ Volume

Stress = Mass/ Volume

When horse pulls a cart, the action is on the:

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Cart

Earth

Horse

Earth and cart

A Leslie cube is use to identify :

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Radiation

Conduction

Convection

Both A and B

If the object is at rest to T .............. W.

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=

=/

<

>

The deforming force is called _______________

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Stress

Strain

Young's Modulus

Nil

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