Question: Two lasers shine coherent light towards a common receiver as shown in the figure below. The first laser is sent horizontally, a distance d=2500 m,

Two lasers shine coherent light towards a common receiver as shown in the figure below. The first laser is sent horizontally, a distance d=2500 m, to the receiver. The second laser is sent at an angle so that it bounces off of a glass ceiling, that is a height h = 2 cm, and is reflected into the same receiver. Assuming that the light from both lasers is perfectly in phase at the start of this triangle, and that n2 (glass) > n1 (air), determine the longest wavelength that can interfere constructively

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