Soap bubble

rgold
1. The problem statement, all variables and given/known da
A soap bubble 500 nm thick is illuminated with white light. The index of refraction of

this unique soap film is 1.35 for all colors (no dispersion). a) What wavelengths are not

reflected?

2nt=mL
2nt=m(L/2)

The Attempt at a Solution

for m=1 2(1.35)(500nm)=1350nm
for m=2 =675nm
am i doing this right? i do not really understand what the question is looking for.

Homework Helper
[A]m I doing this right?
I do not really understand what the question is looking for.
... then you are probably not doing it right.
Even if you got the right answer, it would only be by accident.

Why would some wavelengths not get reflected off the soap bubble?

gracy
rgold
... then you are probably not doing it right.
Even if you got the right answer, it would only be by accident.

Why would some wavelengths not get reflected off the soap bubble?
If they get absorbed they would not be reflected right? But I don't know how to translate this