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Question
A ray of light is incident on a parallel-sided glass slab, as shown in the diagram. The angle of refraction for this ray of light is likely to be:
Options
60°
33°
57°
30°
MCQ
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Solution
33°
Explanation:
By the geometric rule of alternate interior angles, the diagram explicitly shows that the angle formed next to the parallel normal line inside the glass block is exactly 33°.
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