Question # 1

The increase in thermal pollution of environment means.

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Increase in the entropy

Decrease in the entropy

Entropy remains constant

Entropy becomes zero

Sound travel faster in

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CO2

H2

O2

He

The law of conservation of mass gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

the work done in isochoric process is.

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Constant

Variable

Zero

Depend upon condition

When hot and cold water are mixed, the entropy.

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Decreases

Increases

Remain constant

Zero

2 radian = ____

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2 m

4 m

57.3 m

114.6 m

Unit of impulse is equivalent to that of.

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Force

Momentum

Acceleration

Velocity

Speed of sound in copper is

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38000 ms-1

3600 ms-1

3500 ms-1

3400 ms-1

The motion of a simple pendulum is the example of

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Vibratory motion

Rotatory motion

Periodic motion

Both a and c

If the pressure of a gas is doubled, then speed of sound is.

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Doubled

Become half

Not affected

Increases by four times

Who did give the correct formula for the speed of sound in air?

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Boyle

Laplace

Newton

Einstein

When the rocket moves away from the earth, the work against gravity

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Remains constant

Varies directly with distance

Varies inversely with distance

Varies inversely with square of distance

All point of the rigid body rotating about a fixed axis do not have same.

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Angular acceleration

Angular speed

speed

Angular displacement

The waves used in radar speed trap are

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Longitudinal

Sound wave

Micro waves

Matter waves

The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.

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Manometer

Sphygmomanometer

Barometer

Stethoscope

The wave form of SHM is.

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Sine wave

Cosine wave

Tangent wave

Square wave

The law of conservation of energy is the basis of.

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Stream line flow

Equation of continuity

Bernoulli's equation

Venture relation

SI units of time was redefined in

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1900

1967

1960

1983

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