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In a thin film of oil on water, if the thickness of the film is 200 nm, what is the condition for the first order bright fringe?

Practice Questions

1 question
Q1
In a thin film of oil on water, if the thickness of the film is 200 nm, what is the condition for the first order bright fringe?
  1. 2t = (m + 1/2)λ
  2. 2t = mλ
  3. t = (m + 1/2)λ
  4. t = mλ

Questions & Step-by-step Solutions

1 item
Q
Q: In a thin film of oil on water, if the thickness of the film is 200 nm, what is the condition for the first order bright fringe?
Solution: For constructive interference in a thin film, the condition is 2t = mλ, where m is an integer.
Steps: 0

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