Social Sciences, asked by Anonymous, 1 year ago

what is black? Is there any black light,If there ,what is the wave length of black light?

Answers

Answered by nayara30

3

Answer:

Black means black where we can sometime we see sometime not . yes there is black light. below 320 nm is wavelenght ok..

I hope u will understand

okkkk

Explanation:

ok .......

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