Physics > 2001 > 23
WASSCE
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 5∘ calculate the displacement. of the spot.
A.
8.7cm
B.
10.0cm
C.
15.4cm
D.
17.6cm
Answer: D
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