Question: Two plane mirrors, M1 and M2, are placed together as illustrated in Fig. 22.25. (a) If the angle α between the mirrors 70o is and

Two plane mirrors, M1 and M2, are placed together as illustrated in Fig. 22.25.
Two plane mirrors, M1 and M2, are placed together as

(a) If the angle α between the mirrors 70o is and the angle of incidence, θi1 of a light ray incident on M1 is 35o, what is the angle of reflection, θr2, from M2?
(b) If a = 115o and θi1 = 60o, what is θr2?

M1 M2 Top view

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