Question # 1

The curve representing an adiabatic process is called.

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An adiabatic

An isotherm

Both of these

None of these

Value of triple point of water is given as.

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Zero K

100 K

273.16 K

373.16 K

The molecules of an ideal gas exert

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Force on each other

No force on each other

Large force on each other

Pressure on each other

When the body moves with constant acceleration the velocity time graph is

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Parabola

Hyperbola

Straight line

Curve

For a rocket , the change in momentum per second of the ejecting gases is equal.

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Acceleration of the rocket

Momentum of rocket

Velocity of rocket

Thrust acting on rocket

The minimum distance from eye at which an object appears to be distinct is

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Near point

Focal length

Image distance from lens

Object distance from lens

A force of 100 N makes on angle of 60^owith y axis, its horizontal component is.

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50 N

60 N

70.7 N

86.6 N

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

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Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

When the amplitude of a wave become double, its energy becomes

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One half

Two times

Three times

Four times

A force of 20 N acts along x axis, tis component is.

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0 N

10 N

20 N

30 N

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

The mathematical expression for the restoring force is.

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F = kx

F = ma

F = dp/dt

F = -kx

A heat engine operates between the temperature 1000 K and 400 K, Its efficiency is.

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100%

70%

60%

50%

The speed of light was measured correctly by

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Galileo

Michelson

Newton

Maxwell

Kg ms-1 can also be written as

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Nm

Ns

Ns-1

Js

Sound waves are

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Electromagnetic waves

Transverse waves

Compressional waves

Matter waves

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