Find the thickness of the film

Reference no: EM13321563

A soap film whose index of re%uFB02ecetion is 1.33 is suspended in air. When sunlight strikes the film nearly perpendicularly, two colors, %u03BB1=397 nm and %u03BB2=665 nm, look bright in the reflected light due to constructive interference. No other color is observed. Find the thickness of the film.

Reference no: EM13321563

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