Optics Question 875
Question: A certain region of a soap bubble reflects red light of wavelength . What is the minimum thickness that this region of the soap bubble could have? Take the index of reflection of the soap film to be 1.41.
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: A
Solution:
[a] There is air on both sides of the soap film.
The condition for bright fringes is