A ray of light is incident on a pane of common window glass at an angle of 35° to the normal. The angle of the reflected ray with respect to the normal is
1) 35°
2) 55°
3) 90°
4) 20°
and the refracted ray within the glass may be at an angle of
5) 35°.
6) 55°.
7) 22°.
8) 75°.
Answer: 1, 7
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