Physics > 2000 > 28
WASSCE
In the diagram above, an incient ray AY makes an angle an angle makes an angle of 30∘ with the normal XY, if the mirror is rotated anticlockwise about Y through an angle of 20∘, while AY is fixed, what angle will the reflected ray now make with the incident ray
A.
70∘
B.
80∘
C.
100∘
D.
120∘
Answer: C
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