Question # 1

The flow of a fluid is of

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One type

Two types

Three types

Four type

the length of simple pendulum of time period 1 second is

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2 m

1 m

0.5

0.25 m

Boltzman constant 'k' has same unit as.

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Temperature

Energy

Entropy

Pressure

The work done will be maximum when angle between F and d.

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180^o

0^o

90^o

60^o

The Unit of thermodynamic temperature is.

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C^o

F^o

K

None of these

Average translational K.E. of molecules for an ideal gas is given as

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1/2 KT

KT

2/3 KT

3/2 KT

The device used to study the spectra from different sources of light is

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Telescope

Optical fibre

Spectrometer

Microscope

1 torr in Nm-2 is expressed as.

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130.5 Nm-2

133.3 N m-2

140.2 Nm-2

135.2 Nm-2

Stars moving away from Earth show a

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Green shift

Blue shift

Red shift

Yellow shift

the final image obtained by astronomical telescope is.

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Erect

Virtual

Magnified

All of these

Light waves emitted from a source spread in

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Specific direction

All direction

Upward direction

None of these

Wavelength of a wave for closed pipe having length 'l' in the fundamental mode is.

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2 l

1/2

4 l

l

When sound waves enter in different medium, the quantity that remains unchanged is.

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Intensity

Speed

Frequency

Wave length

The collision between the gas molecules is

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Elastic

Inelastic

Both a and b

None of these

The wavelength of fundamental note in one end closed pipe in term of length 'l' of pipe is.

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4 l

2l

l

1/4 l

The portion of the wave above mean level is called.

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Node

Antinode

Crest

Trough

The branch of Physics wich deals with velocities approaches the velocity of light is called

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Quantum Physics

Relati vistics Mechanics

Wave Mechanics

None of these

Efficiency of a heat engine working between 27 ^oC and 32 ^oC will be.

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50%

90%

40%

62%

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