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Heat radiations propagate with the speed...

Heat radiations propagate with the speed of

A

`alpha`-rays

B

`beta`- rays

C

light waves

D

Sound waves

Text Solution

Verified by Experts

The correct Answer is:
C
Heat radiation is the another name of infrared radiation and it is a type of em wave which travels with the speed of light `3 xx 10^(6)` m/s. Heat radiation is called because water molecules present in most materials readily absorb infra waves. After absorption their thermal motion increase that is they heat up and heat their surrounding.
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