Question # 1

When temperature of source and sink of a heat engine becomes equal then the entropy change will be.

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zero

Minimum

Maximum

Negative

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

Soap film is sunlight appears coloured due to.

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Dispersion of light

Diffraction of light

Scattering of light

Interference fo light

Stoke's law holds for bodies having.

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Spherical shape

Oblong shape

Rectangular shape

All shapes

A man of 5000 kg moves with an acceralation of 1 ms-2 force acting on it is.

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5 N

500 N

50 N

5000 N

Which is nooptically active

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Sugar

Tartaric acid

Water

Sodium chloride

In simple harmonic motion the velocity of a particle is maximum at.

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Extreme position

Mean position

In between extreme and mean position

None of them

Environmental crisis are also known as

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Population crisis

Entropy crisis

War crisis

Mass crisis

A device based upon the thermodynamics property of matter is called.

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Calorimeter

Heat engine

thermometer

Voltmeter

When the amplitude of a wave is increase to doubled is energy.

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Remain the same

Increases 4 times

Increases by two times

Decreases by half

Longitudinal waves do not exhibit

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Reflection

Refraction

Polarization

Diffraction

The difference between tow molar capacities is equal to.

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Plank's constant

General gas equation

Molar gas constant

Boltzmann constant

The product of time period and frequency is.

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Zero

1

2

3

The pitch of sound deepens upon

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Intensity of sound

Loudness of sound

Wavelength of sound

Frequency of sound

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

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Newton

Pascal

Bernoulli

Bu Ali Sina

The internal energy of system does not depend on

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Temperature

Pressure

Path

Final and initial state

The commercial unit of electric energy is

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Kilo watt hour

watt

Watt hour

Kilo Watt

The rate of change of angular velocity is called

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Angular velocity

Angular acceleration

Angular displacement

Angular speed

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