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Calculate the minimum thickness of a soap bubble film (n=1.33) that will result in constructive interference in the reflected light if the film is illuminated by light of wavelength 602nm

Calculate the minimum thickness of a soap bubble film (n=1.33) that will result in constructive interference in the reflected light if the film is illuminated by light of wavelength 602nm

Grade:12

1 Answers

Nirmal Singh.
askIITians Faculty 44 Points
8 years ago
for constructive interference
2t = (m + 1/2 ) Lambda / n
t = (m + 1/2 ) Lambda /2 n
t = (0+1/2) * 602 / 2*1.33 where m = 0
t = 113.16 nm
Thanks & Regards,
Nirmal Singh
Askiitians Faculty

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