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An incident ray is reflected normally by a plane mirror onto a screen where it forms a ...

An incident ray is reflected normally by a plane mirror onto a screen where it forms a bright spot. The mirror and screen are parallel and 1m apart. If the mirror is rotated through 5o, calculate the displacement of the spot

A. 8.7cm
B. 10.0cm
C. 15.4cm
D. 17.6cm




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