Question # 1

Work has dimension lime

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Torque

Momentum

Velocity

Power

The diver spin faster when moment of inertia becomes.

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smaller

Greater

Constant

Equal

For a diatomic gas Cv= 5R/2 then gamma for this gas is.

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5/7

4/35

7/5

35/4

the length of simple pendulum of time period 1 second is

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2 m

1 m

0.5

0.25 m

A fog droplets are in freely falling condition,. the ratio of their radii is 2:3, the ratio of their terminal velocities will be.

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2:3

4:6

4:9

9:4

Newton's laws of motion were published in

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1587

1687

1787

1887

The angular acceleration a =

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If a body of mass 5 kg is raised vertically through a distance of 1 m, then work done is.

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49 J

4.9 J

490 J

0.49 J

Fringe spacing is inversely proportional to.

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Wave length

Slit separation

Distance between the slit and screen

Frequency of light

The collision between the gas molecules is

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Elastic

Inelastic

Both a and b

None of these

When a vector is multiplied by a (-)ve number its direction

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Remains constant

Reversed

Change by 90°

None of these

The unit of work in base unit is

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Kg m-1 sec-2

Kgm sec-2

Kgm2 sec-1

Kgm-1 sec-1

The distance covered by wave in 1 sec is

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wavelength

Wave number

Wave speed

Frequency

The weight of an object an elevator moving down with an acceleration of 9.8 m/s2 will becomes

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Half

Double

Unchanged

Zero

100 radians are equal to.

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57.3^o

75.3^o

573^o

5730^o

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

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Karachi

K-2

Murree

Lahore

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

If heat is added to a system, then its entropy will.

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Increases and positive

Decrease and positive

Increases but negative

Decreases but negative

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Physics Fsc Part 1 Online Test MCQs With Answers

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