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Question
When an equilateral prism is in minimum deviation position the angle of incidence is ______.
Options
greater than the angle of emergence
smaller than the angle of emergence
equal to the angle of emergence
none of these
MCQ
Fill in the Blanks
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Solution
When an equilateral prism is in minimum deviation position the angle of incidence is equal to the angle of emergence.
Explanation:
At the minimum deviation position, the path of light through the prism is symmetrical. Therefore, the angle of incidence is equal to the angle of emergence.
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