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CBSE Class 12-science Answered

How are infrared waves produced? Why are these referred to as 'heat waves'? Write their one important use.
Asked by Topperlearning User | 20 May, 2014, 09:07: AM
answered-by-expert Expert Answer

Infra red waves are emitted by hot bodies. They are produced due to the de-excitation of atoms.

 

They are called Heat waves as they produce heat on falling on matter. This is because water molecules present in most materials readily absorb infra red waves. After absorption, their thermal motion increases, that is, they heat up and heat their surroundings.

Uses: Infra red lamps; play important role in maintaining warmth through greenhouse effect.

Answered by | 20 May, 2014, 11:07: AM
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