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A light beam reflects off two parallel reflecting surfaces that are ? = 181 cm long and separated by a distance of s = 65.0

A light beam reflects off two parallel reflecting surfaces that are ? = 181 cm long and separated by a distance of s = 65.0 cm. If the beam of light enters this region as shown, with the angle ? = 23.6, determine the following.

a) the number of times the light beam reflects off the left surface

b) the number of times the light beam reflects off the right surface

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