The following diagrams show the bending of light at the interface of water and media A, B, and C. Study the diagrams carefully and answer the questions that follow
i. If vA, vB and vC be the velocities of light in media A, B and C respectively, then which of the following statements is true? *
a) vA ˂ vB ˂ vC
b) vA ˃ vB ˃ vC
c) vA ˃ vC ˃ vB
d) vC ˃ vA ˃ vB
ii. If nA, nB and nC be the refractive indices of light in media A, B and C respectively, then which of the following statements is true? *
a) nA ˂ nB ˂ nC
b) nA ˃ nB ˃ nC
c) nB ˃ nC ˃ nA
d) nA ˃ nC ˃ nB
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Answer:
d) vc>vA>vB
a) nA>nB>nC
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