Question # 1

Clockwise torque is taken:

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Positive

Negative

Neutral

Nil

Sin 45 is equal to:

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Zero

0.5

0.707

1

a ball is thrown vertically upward. Its velocity at the highest point is.

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10 ms^-2

-10 ms^-1

Zero

none of them

In Einstein's mass-energy equation c means speed of light. Its value is:

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3 x 10^-8 ms^-1

3 x 10⁸ms^-1

3 x 10⁹ms^-1

3 x 10¹⁸ms^-1

In symbols, co-efficient of volume expansion is defined as

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β = ΔT/V∘ΔV

β = ΔV/ΔT

β = ΔV/V∘ΔT

β = ΔT/ΔV

In building central heating system works on the process of:

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Covection

Radiation

Conduction

both a and b

Evaporation takes place at temperature :

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100°C only

0°C only

35°C Only

At all temperature

The upper reference point in thermometer is used to check:

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Melting point

Freezing point

Boiling point

Streaming point

Which parameter remain same every where?

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Force

Mass

Weight

Velocity

The work is negative if the angle between force and displacement is:

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0°

45°

90°

180°

Graph is plotted between ........ variable.

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1

2

3

4

Racing cars are made stable by :

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Increasing their speed

Decrease their mass

Lowering their center of gravity

Decreasing their width

The value of g at a height one Earth's radius above the surface of the earth is:

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2g

1/2 g

1/3 g

1/4 g

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