Monochromatic Light $\lambda$ = 500 Nm)is Incident on a Soap Bubble (N =

Multiple Choice

Monochromatic light ( $\lambda$ = 500 nm) is incident on a soap bubble (n = 1.40) .What is the wavelength of the light (in nm) in the bubble film?

A) 255
B) 500
C) 700
D) 357
E) 422