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 214 nm thick?
A) 417 nm
B) 446 nm
C) 406 nm
D) 489 nm
E) 479 nm
Correct Answer:
Verified
Correct Answer:
Verified
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