Two plane mirrors make an angle of $30 ^ { \circ }$ with each other. A light ray enters the system and is reflected once off of each mirror. Through what angle is the ray turned?
A) $150 ^ { \circ }$
B) $60 ^ { \circ }$
C) $120 ^ { \circ }$
D) $90 ^ { \circ }$

Question

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The Answer of Two plane mirrors make an angle of $30 ^ { \circ }$ with each other. A light ray enters the system and is reflected once off of each mirror. Through what angle is the ray turned?
A) $150 ^ { \circ }$
B) $60 ^ { \circ }$
C) $120 ^ { \circ }$
D) $90 ^ { \circ }$

Two Plane Mirrors Make an Angle Of 30∘30 ^ { \circ }30∘

Two Plane Mirrors Make an Angle Of $30 ^ { \circ }$