The speed of light in air (medium P) is??3?108?m/s?. The light ray enters from air to a medium Q of refractive index??53. Consider the following statements:
I. Speed of light in medium Q is more than speed of light in medium P.
II. Speed of light in medium P is more than speed of light in medium Q.
III.?Speed of light in medium Q is?2.1?109?m/s?.
Choose the incorrect statement(s).
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