What is the minimum thickness of a soap bubble for which the first order of bright fringe is observed in reflected light? (2020)
Practice Questions
1 question
Q1
What is the minimum thickness of a soap bubble for which the first order of bright fringe is observed in reflected light? (2020)
λ/4
λ/2
λ
3λ/4
For the first order of bright fringe in reflected light, the minimum thickness of the soap bubble is λ/4 due to the phase change upon reflection.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the minimum thickness of a soap bubble for which the first order of bright fringe is observed in reflected light? (2020)
Solution: For the first order of bright fringe in reflected light, the minimum thickness of the soap bubble is λ/4 due to the phase change upon reflection.
