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CBSE Class 12-science Answered

Why are dark fringes not perfectly dark in diffraction?
Asked by Sanjeev | 10 Feb, 2018, 12:04: PM
answered-by-expert Expert Answer
For anything to be perfectly dark it has to absorb all the radiation incident on it.
Which is only possible for a perfectly black body.
There is always some amount of radiation reflected back.
Therefore the fringes are perfectly dark.
Answered by Science Mate | 10 Feb, 2018, 09:01: PM

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