Question # 1

The word Fluid means

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To rise

To fall

To flow

To oppose

At which place the motion of a simple pendulum will be slowest.

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Karachi

K-2

Murree

Lahore

In vibrating string, the points where the amplitude is maximum are called.

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Nodes

Antinodes

Troughs

Crests

The motion of a simple pendulum is the example of

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Vibratory motion

Rotatory motion

Periodic motion

Both a and c

The dimension of pgh has same as that of

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Work

Energy

Pressure

Mass

The ability of a body to do work is called its

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Force

Power

Capacity

Energy

When velocity time graph is a straight line parallel to time axis then

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Velocity is zero

Acceleration is constant

Acceleration is zero

Velocity is variable

The velocity of a particle having SHM is 'v' at means position. If its amplitude is doubled them velocity at mean position will be

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v/2

v

2v

4 v

Example of thin film is.

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Soap burble

convex lens

Concave lens

Glass plate

When the car moves with an increasing acceleration then its velocity time graph is always

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Constant

Variable

A straight line

A curve

During adiabatic process, which factor remains constant.

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Entropy

Pressure

Momentum

Power

The weight of the body at the centre of earth is

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Maximum

Minimum

Zero

Infinite

For a rocket , the change in momentum per second of the ejecting gases is equal.

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Acceleration of the rocket

Momentum of rocket

Velocity of rocket

Thrust acting on rocket

If amplitude of a simple pendulum is increased by 4 times the time period will be.

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Four times

Half

Same

Two times

A bullet shot straight up, return to its starting point in 10 sec. Its initial speed was

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9.8 ms-1

24.5 ms-1

49 ms-1

98 ms-1

No body begins to move or comes to rest of itself was given by

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Newton

Pascal

Bernoulli

Bu Ali Sina

Temperature of a gas is increased from 27 oC to 127 oC. The ratio of its mean K.E. will be

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3/4

9/16

4/3

10/9

Which is the process in which temperature of the system remains constant.

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Adiabatic process

Isochoric process

Isothermal process

Isobaric process

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