Question # 1

In Fahrenheit scale, upper refrence point is:

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32 ^oF

212 ^oF

180 ^oF

100 ^oF

The net torque acting on a rotating body with uniform speed is:

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0

1

2

5

The unit of torque is:

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Nm^-2

Ncm

Nm^-1

Nm

The unit of gravitational constnat is:

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Nm² kg

Nm²kg^-2

Nm²kg^-1

N - m²

When a hammer raised up its energy will be:

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Mechanical energy

Gravitational potential energy

Chemical energy

Nuclear energy

When a substance is changed from its solid state to liquid state by adding heat, the process is called

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Melting

Fusion

Freezing

A and B both

1 mega watt is equal to:

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10² W

10³ W

10⁵ W

10⁶W

Dull black surface are good ____________

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Absorber

Radiator

Conductor

None of these

A gradual large increase in atmospheric pressure shows:

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Pleasant condition

Rainy condition

Intense condition

Winday condition

Which of the following is a vector quantity?

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Distance

Power

Speed

Displacement

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

Which is unitless quantity:

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Mass

Force

Inertia

Momentum

Bimetal strip is made up of two different metal:

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Copper & iron

Brass & Iron

Brass & Nickel

Copper & Nickel

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