Question

what is meant by radiations?

Answer 1

the transfer of heat from one end or material to another end or material without any contact or without any medium . this is what we called as radiation
for example : the sweat in summer time is caused due to the sun's heat which is coming towards us without any contact .
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Answer 2

HELLO DUDE!

Radiation: Transfer of heat from one heated body to another body is known as Radiation.

For example: Take a candle and hold an iron piece with the help of tongs. Place it 5 centimetres from the candle flame (Upper Side of the flame). After 60 seconds, you can see that the iron piece is heated.

Reason:

The iron piece gets heated dude to the radiation coming from the candle flame.

HOPE IT HELPS YOU DUDE!!

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