Question
Sun July 10, 2011 By:

what are infara red radiations

Expert Reply
Mon July 11, 2011
Infrared Radiations are electromagnetic waves of wavelength in the range of 8000 to 107 .
These radiations lie just beyond the red end of visible spectrum. These are invisible radiations but can be sensed as heat.  All heated bodies such as a heated oven, flame, fire etc are the sources of infrared radiations. The Sun is the natural source of infrared radiations.
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