wave optics

0 pts ended
A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.56). White light is incident normal to
the film. In the reflections, fully destructive interference occurs at 608 nm and fully constructive
interference is seen at 684 nm. No other destructive or constructive fringes are observed in between
those fringes. What is the thickness of the film?

Answers (0)