Question # 1

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

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Adiabatic process

Isochoric process

Isothermal process

Isobaric process

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

The unit of rotational K.E. is

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rAD/SEC

Js

J

Kgm2

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

The difference between two molar capacities is equal to.

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Plank's constant

General gas constant

Molar gas constant

Boltzmann constant

Apparent weight of a man is in upward accelerated lift will

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Increases

Decreases

Remain same

Increases then decrees

The law of conservation of mass gives.

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Beronoulli's

Venturi relation

Torricelli's theorem

Equation of continuity

Standard metal according to Michelson's interferometer is equivalent to

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1553163.5 wave meter

3 x 108meter

15503000 meter

None of these

In Michelson's experiment the relation used to find the speed of light is

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16 fc

1/16 fd

16 fd

16/fd

If the stream lines of fluid are forced closer together then.

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Speed of the fluid increases

Speed of the fluid decreases

Pressure of the fluid increases

Speed of the fluid remain same

A man of mass 5 kg is falling freely, the fore acting on it will be

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5 N

9.8 N

19.6 N

49 N

In stationary waves, the particle velocity at nodes is

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Minimum

Maximum

Zero

Constant

Force acting on the piston to move outward is.

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Compressive stoke

Power stoke

All stoke

Exhaust stoke

No spark plug is needed in the

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Petrol engine

Diesel engine

Gas engine

Water engine

The focal length of a concave lens is always

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+ve

-ve

Zero

None of these

The angle between x-axis, y-axis and z-axis is

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45°

60°

75°

90°

A stretched string 2 m long and it has 2 hopes of stationary waves hen the wavelength is

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4 m

2 m

3 m

1 m

A ray of light is a line

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Parallel to wave front

Normal to wave front

Anti-parallel to wave

Any one of these

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