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Answer : 4. "Bodies which absorb and emit radiation of high frequency."
What is called Krashanika?
5Q:
What is called Krashanika?
- 1Radiationfalse
- 2Black Colorfalse
- 3Radiation emitted from the bodyfalse
- 4Bodies which absorb and emit radiation of high frequency.true
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Answer : 4. "Bodies which absorb and emit radiation of high frequency."
Explanation :
An object which completely absorbs radiation of all wavelengths incident on its surface is called a black body. Black bodies absorb radiation in a particular and continuous spectrum and re-emit it when heated.