A light beam is being reflected by using two mirrors, as in a periscop – McqOptions

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1.	A light beam is being reflected by using two mirrors, as in a periscope used in submarines. If one of the mirrors rotates by an angle q, the reflected light will deviate from its original path by the angle [UPSEAT 2004]
A.	\[2\theta \]
B.	\[{{0}^{o}}\]
C.	\[\theta \]
D.	\[4\theta \]
Answer» B. \[{{0}^{o}}\]

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