SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Find the angle of refraction for a ray of light that enters water (n=1.33) from glass (n=1.5) at an angle of 25 degrees to the normal.
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22
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28.5
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57.5
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32.8
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Explanation:
Detailed explanation-1: -The unknown in this problem is 2, which should be isolated. Since 30o only contains 2 significant digits, the answer needs to be rounded to 2 significant digits, which means the angle of refraction in air is 42o .
There is 1 question to complete.