Refer to a very narrow beam of light (for example, a laser beam) that can be rep

Question

Refer to a very narrow beam of light (for example, a laser beam) that can be represented by a single ray. The light is initially traveling from left to right in a transparent medium of index of refraction n_1, and incident on a second transparent medium of index of refraction n_2. The reflected and refracted rays are as shown in the diagrams below. (If either is missing, it means there is no reflected or no refracted ray.) Answer each of the questions below with one of the following choices, A through F. A. Only if n_2 > n_1, D. Can happen with A or C. B. Only if n-2 = n_1, E. Never possible. C. Only if n_2

Explanation / Answer

for 6th question,the ray bend toward the normal it means n2>n1 =>A

for 7th question,,the ray bend away from normal it means n1>n2 =>C

for 8th question,,this in not possible,there must be refrected ray also =>E

for 9th question,possible if n2=n1 =>B

for 10th question,possible if n1>n2 =>C

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