7. A: The light ray gets refraction at the interface of the two media. R: Speed of light changes when light ray propogates from one medium to another medium (A) Both A and R are true, R is correct explanation of A (B) Both A and R are true, R is not correct explanation of A (C) A is true, Ris false (D) Both A and R are false Medium A
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Answer:
the correct answer is option (A)
Explanation:
because refraction occurs when the speed of light change at the interference of two media. The change in speed of light depends on the optical density of the object .
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