Question: In two experiments, light is to be sent along the two paths shown in Figure by reflecting it from the various flat surfaces shown. In

In two experiments, light is to be sent along the two paths shown in Figure by reflecting it from the various flat surfaces shown. In the first experiment, rays 1 and 2 are initially in phase and have a wavelength of 620.0 nm. In the second experiment, rays 1 and 2 are initially in phase and have a wavelength of 496.0 nm. What least value of distance L is required such that the 620.0 nm waves emerge from the region exactly in phase but the 496.0 nm waves emerge exactly out ofphase?

-L- L. Ray 1 Ray 2 I.

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