Multiple Choice
What wavelength monochromatic source in the visible region (390 to 710 nm) can be used to constructively reflect off a soap film (n = 1.46) if the film is 78.0 nm thick?
A) 467 nm
B) 386 nm
C) 456 nm
D) 404 nm
E) 499 nm
Correct Answer:
Verified
Correct Answer:
Verified
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