Question: In Figure two light rays go through different paths by reflecting from the various flat surfaces shown. The light waves have a wavelength of 420.0

In Figure two light rays go through different paths by reflecting from the various flat surfaces shown. The light waves have a wavelength of 420.0 nm and are initially in phase. What are the

(a) Smallest and

(b) Second smallest value of distance L that will put the waves exactly out of phase as they emerge from the region?

-L- L. Ray 1 Ray 2 I.

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