observe interference in a thin film, why must we consider a film that is not very thick (with a thickness of only a few wavelengths)? What happens if we exceed that thickness? Explain

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter35: Diffraction And Interference
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To observe interference in a thin film, why must we consider a film that is not very thick (with a thickness of only a few wavelengths)? What happens if we exceed that thickness? Explain.

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