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IP A thin soap film (n = 1.33) suspended in air has a uniform thickness. When...

IP A thin soap film (n = 1.33) suspended in air has a uniform thickness. When white light strikes the film at normal incidence, violet light ( λV = 420 nm) is constructively reflected.

A) If we would like green light ( λG = 560 nm) to be constructively reflected, instead, should the film's thickness be increased or decreased?

Answer: A thickness of the film must be increased OR B thickness of the film must be decreased

B) Find the new thickness of the film. (Assume the film has the minimum thickness that can produce these reflections.)

Answer: t=___ μm

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@ Conditon for constuuive intoyound ant (mt )λ r m 0 im must be norea sed 560 x10-9 4 C1 33) t=

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