MHT CET Physics question
Two coherent sources 'P' and 'Q' produce interference at point 'A' on the screen, where there is a dark band width is formed between and bright band. Wavelength of light used is 6000Å. The path difference PA and QA is [MHT-CET 2021]
Answer: (D)
Solution
A dark band between the and bright bands has path difference
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