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Question
Choose and write the correct option.
If we gradually increase the angle of incidence of a ray of light passing through prism then …..
Options
Angle of deviation goes on decreasing.
Angle of deviation decreases but after certain value of incident angle, deviation angle increases
Angle of deviation goes on increasing.
Angle of deviation increases but after certain value of incident angle deviation angle decreases.
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Solution
Angle of deviation decreases but after certain value of
incident angle, deviation angle increases.
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