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Refraction and Distance

A spotlight on a boat is 2.5 m above the water and the light strikes the water at a point that is 8.0 m horizontally displaced from the spotlight. The depth of the water is 4.0 m. Determine the distance d, which locates the point where the light strikes the bottom.

2.5 m
8 m

Solution Preview

Angle of incidence i = arctan (8/2.5) = 72.65 deg.
Refractive ...

Solution Summary

This solution provides equations for distance that a light travels through water.