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प्रश्न
A red hot ball is suspended from the ceiling of a room using a thin metallic wire.
Explain what role does the air in the room play in the loss of heat.
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उत्तर
As loss of heat takes place by Radiation and the process of radiation does not require any material medium, so there is no role of air in loss of heat.
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संबंधित प्रश्न
Prepare a brief speech on global warming. You have to deliver the speech in your class.
What results in the increase of carbon dioxide contents of earth's atmosphere?
Name the radiations which are absorbed by the green house gases.
What causes the rise in atmospheric temperature?
Name two more greenhouse gases.
A renewable source of energy which causes minimum or no pollution.
The diagram represents the greenhouse effect.
Name a process which (a) releases (b) absorbs – greenhouse gas – CO2.
The increase in the levels of greenhouse gases results in a gradual increase in the temperature of the earth’s surface.
