SSC JE Mechanical Engineering 2018 Set 5 Paper
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Question : 86 of 200
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Which of the following statement(s) is/are CORRECT for critical angle?
I. Refractive angle is 90°.
II. Light ray goes from rarer to denser medium.
III.Light ray goes from denser to rarer medium.
I. Refractive angle is 90°.
II. Light ray goes from rarer to denser medium.
III.Light ray goes from denser to rarer medium.
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