If a Thin Soap Film N = 1

question 137

Multiple Choice

If a thin soap film n = 1.36) reflects predominately red light about 680 nm) , then what is the minimum thickness of the soap film?

• A) 1.25 × 10^-7 m
• B) 6.80 × 10^-7 m
• C) 2.50 × 10^-7 m
• D) 5.00 × 10^-7 m
• E) None of these is correct.

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