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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.
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.
Name the radiations which are absorbed by the green house gases.
Without green house effect, the average temperature of Earth's surface would have been :
Why do we call carbon dioxide a greenhouse gas?
Give balanced equations for the formation of carbon dioxide – a major greenhouse gas, during combustion of fossil fuels.
Explain how promoting ‘afforestation’ and checking ‘deforestation’ reduces the release of greenhouse gases.
How will you minimize heat loss due to the following:
Convection
How will you minimize heat loss due to the following:
Conduction
The increase in the levels of greenhouse gases results in a gradual increase in the temperature of the earth’s surface.
