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Question

A ray of light is incident on a medium with angle of incidence i and refracted into a second medium with angle of refraction r. The graph of sin(i) vs sin(r) is as shown in fig. Then, the velocity of light in the first medium in n times the velocity of light in the second medium. What should be the value of n?

157776_7f974fb2ddaf4081814948854c99ad3a.png

A
3
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B
1/3
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C
3/2
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D
2/3
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Solution

The correct option is C 3
Using Snell's law, μ2μ1=sinisinr=tan60o=3

We know, v1v2=μ2μ1=n=3

option A is correct

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