Question # 1

A body of mass 1.0 Kg dropped from the top of a tower of highest 50 m, what will be its K.E. 10 m below the top

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400 J

490 J

49 J

98 J

The blue colour of sky is due to

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diffraction

Reflection

Polarization

Scattering

In stationary waves the points which always remain at rest are.

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Nodes

Antinodes

Crest

Trough

The value of of 'g' at the centre of the earth is

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Infinite

2 g

3 g

zero

Close orbiting satellites orbit the earth at a height of about

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400 km

4000 km

400 m

400 cm

A force of 10 N acts on a body of mass 5 kg in one second. The change in its momentum will be.

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10 kgms-1

50 kg ms-1

2 kg ms-1

20 kg ms-1

When one mirror of a Michelson interferometer is moved a distance of 0.5 mm, 2000 fringes and observed, The wavelength of light used is.

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5000 m

50000 A^o

500 cm

2000 A^o

For maximum range the angle of projection must be

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30^o

45^o

60^o

90^o

Image formed by a concave lens is

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Real

Virtual

Erect

None of these

In which medium the speed of sound is greater.

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Oxygen

Air

Water

copper

Turning of radio is example of.

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Mechanical resonance

Electrical resonance

Physical resonance

Biological resonance

Satellites are the objects that orbit around the

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Moon

Sun

Earth

Star

The efficiency of heat engine whose sink is at 17 ^oC and source at 200 ^oC is.

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38%

63%

80%

90%

The behaviour of gases is discussed by

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Knowing their nature

Knowing their temperature

Kinetic theory

Maxwell's theory

The Carnot cycle can be shown by which graph

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P - T graph

P - V Graph

V- T graph

PV -T graph

Crests and trough are formed in.

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Longitudinal waves

transverse waves

Stationary waves

Compression waves

The flow of a fluid is of

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One type

Two types

Three types

Four type

When newton ring are seen through the transmitted light, then central spot is.

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Dark

Blue

Bright

Red

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Physics Fsc Part 1 Online Test MCQs With Answers

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