Question # 1

The weight of a body is 100 N its weight on moon is :

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0.17 Kg

1.7 N

17 N

170 N

____________ is bad conductors of heat:

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Copper

Water

Wire

Nil

Minor but rapid change in atmospheric pressure cause:

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Poor condition

Intense condition

Windy condition

Pleasant condition

The energy stored in a dam is:

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Electric energy

Potential energy

Kinetic energy

Thermal energy

Air and water is conductor:

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Poor

Good

Excellent

None of these

The product of force and momentum arm is called:

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Couple arm

Torque

Rigid body

Axis of rotation

Cos 0^ois

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0

2

1

0.5

If the mass of a body is 'm' and change in its temperature isΔT, then the heat absorbed or released is given by

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ΔQ = cmΔT

ΔQ = mΔT

ΔQ = 2cΔT

ΔQ = cmΔT2

1 litre is equal to:

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10² m³

10^-3 m³

10³m³

10⁶m³

In Einstin's mass energy equation, c is the :

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Speed of sound

Speed of light

Speed if volume

None of these

The mass of a body

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Decreases when accelerated

Increases when accelerated

Decreases when moving with high velocity

None of the above

Coefficient of linear thermal expansion of Steel?

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1.2 x 10^-5

2.2 x 10^-5

0.2 x 10^-5

1.3 x 10^-5

Speed of the satellites of GPS around earth is:

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3.87 ms^-1

387 kms^-1

3.87 kms^-1

38.7 kms^-1

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