Question # 1

Newton's rings are formed due to phenomenon of.

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Interference

Dispersion

Diffraction

Polarization

In reversible process the entropy of system.

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Remain constant

Decrease

Increase

Becomes zero

Bright fringes are also called as

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Minima

Maxima

Wave front

Ray of light

the wavelength of transverse wave travelling with a speed 'v' having frequency 'f' in equal to

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f/v

Vf

V/f

f/V2

Which is the process in which temperature of the system remains constant.

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Adiabatic process

Isochoric process

Isothermal process

Isobaric process

The resultant of two forces 3 N and 4 N acting at right angle to each other is

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7 N

5 N

4 N

1 N

Time taken by light to reach from moon to earth is

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1 min 20 sec

8 min 20 sec

3 min 20 sec

2 min 20 sec

The motion of gas molecules is

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In the same direction

Random

Walls of container

Opposite to each other

If a mass of a body is doubled, then acceleration becomes.

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Double

Half

One fourth

Constant

A frame of reference stationed at the earth is an

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Inertial frame

None internal frame

Accelerated frame

Laboratory frame

Waves transport energy without transporting

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Matter

Force

Momentum

All of these

For working of heat engine, there must be

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A source

A sink

Ether of these

Both of them

The study of fluid dynamics is

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Easy

Complicated

Impossible

None of these

The founder of mathematical physics is

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EuclidArchimedes

Plato

Aristotle

The resultant of two vectors having magnitude 10 N and 8 N Can not be

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2 N

9 N

18 N

20 N

Number of seconds in a day is

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9000 sec

3600 sec

86400 sec

43200 sec

Speed of sound in aluminum at 20 ^oC is.

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3600 m/s

5100 m/s

5130 m/s

3500 m/s

The distinguish between transverse and longitudinal wave_______ is used.

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Refraction

Interference

Diffraction

polarization

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