Question # 1

S.I Unit of pressure of gas is.

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Nm

N.m

N2/m

N3m

For working of heat engine, there must be

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A source

A sink

Ether of these

Both of them

Cloud formation in atmosphere is an example of.

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Isothermal process

Isochoric process

Adiabatic process

Isobaric process

The unit o pressure of gas is

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Nm^-2

Pascal

Atmosphere

All of these

The motion of gas molecules is

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In the same direction

Random

Walls of container

Opposite to each other

A finite volume of gas consists of

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Small no. of molecules

Large no. of molecule

Average no. of molecule

None of these

The Carnot cycle can be shown by which graph

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P - T graph

P - V Graph

V- T graph

PV -T graph

A Carnot engine has an efficiency of 50% when its sink temperature is at 27 ^oC. The temperature of source.

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273^oC

300 ^oC

327 ^oC

373 ^oC

Almost all the raw energy is librated from

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Heat

Earth

Light

All of these

The measure of hotness or coldness of a substance is.

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Temperature

Heat

Internal energy

Energy

The kinetic energy of molecules of an ideal gas at absolute zero is

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Very low

Very high

Zero

First increases then decreases

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Physics English Medium Fsc Part 1 Chapter 11 Online MCQs Test MCQs With Answers

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