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प्रश्न
A red hot ball is suspended from the ceiling of a room using a thin metallic wire.
Name the ways in which the ball loses heat.
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उत्तर
As no material medium surrounds the ball so there is no possibility of losing heat by conduction or convection. The ball will lose heat by Radiation.
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संबंधित प्रश्न
Give a reason for the following:
An excess of carbon dioxide increases the temperature of the earth.
What causes the rise in atmospheric temperature?
Name two more greenhouse gases.
Name or state the following:
A green house gas which contains carbon and hydrogen only.
The diagram represents the greenhouse effect.
Name a process which (a) releases (b) absorbs – greenhouse gas – CO2.
The greenhouse effect is boon or bane? Give your opinion.
Assertion: Greenhouse gases maintain the temperature.
Reason: Greenhouse gases absorb infrared rays.
Answer:
