Wat is the formula for thickness of soap film in destructive interference
NADIR DAREKAR , 6 Years ago
Grade 12th pass
Wave Optics> Wat is the formula for thickness of soap ...
1 AnswersShivansh
Last Activity: 6 Years ago
For the destructive interference, path difference
δ = (2n+1)λ/2
where n = 0, 1, 2, 3 … and the film appears dark.
2µt cos r + λ/2= (2n+1)λ/2
2µt cos r = nλ
here t is the thickness
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