Question # 1

What gas behaves as glass or polythene to radiation:

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Nitrogen

Hydrogen

Carbon di oxide

Methane

Rooms are heated using gas heater by:

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Conduction only

Convection and radiation

Radiation only

Convection only

Larger number of slots are made in radiators to increase:

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Surface temperature

Surface area

Both A and B

Nonr

Degree of hotness or coldness of the body is called:

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Heat capacity

Thermal conductivity

Heat

Temperture

Radiation are emited by:

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Cold body

Hot body

All bodies

None

Larger is the area greater will be:

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Radiation

Transfer of heat

Evaporation

Conduction of heat

A Leslie cube is a:

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Metal box

Wooden box

Glass box

None

................ causes coastal breeze.

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Conduction

Convection

Radiation

Nil

Which surface is bad emitter:

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White surface

Black surface

Coloured surface

Silver surface

Those objects which do not conduct electricity are called.

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Insulator

Semi conductor

Nil

Conduct

Land breeze from land to sea during:

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Day

Night

Afternoon

Morning

False celling is done to

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Lower the height of ceiling

Keep the roof clean

cool and room

Insulate the ceiling.

Land and sea breezes are the result of:

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Absorption

Radiation

Conduction

Convection

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9th Class Physics Chapter 9 Transfer of Heat English Medium KPK Boards Online Mcqs MCQs With Answers

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