Question # 1

The first person who attempted to measure the speed of light was.

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Michelson

Hygen's

Galileo

Ability

--------- is area of physics

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Chemical physics

astrophysics

Mechanics

None of these

An ideal reversible heat engine has

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100% efficiency

Highest efficiency

80%

90%

For working of heat engine, there must be.

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A source

A sink

either of these

Both of these

In case the work done in zero.

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Constant pressure

Constant volume

Constant temperature

Constant mass

The force and torque are analogous to

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Velocity

Mass and weight

Moment of Inertia

Each other

The dimensions of angular velocity are

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[LT-1]

[LT-2]

[T-1]

[L-1T-1]

The Unit of thermodynamic temperature is.

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C^o

F^o

K

None of these

Angular velocity determines, How fast or, How slow a body is

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Accelerating

Vibrating

Rotating

Oscillating

In case of point source the shape of wave front is.

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Plane

spherical

Circular

Eliptical

Physics bases on Newtonian mechanics is called

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astrophysics

Modern Physics

Classical Physics

Meta Physcis

Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

SI units of time was redefined in

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1900

1967

1960

1983

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 light energy travels in space as waves was firstly proposed by

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Maxwell

Young

Einsten

Hydrogen

If an object lies at focus point F in front of a converd lens, its image is formed at.

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2F

F

3F

Infinity

Boltzman constant 'k' has same unit as.

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Temperature

Energy

Entropy

Pressure

The speed of sound in ari at 0 ^oC is 332 ms-1, Then the speed at 40 ^oC will be

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372 ms-1

356 ms-1

346 ms-1

332 ms-1

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