Question

Three medium a b c are given with same incident angle and refractive angle 10 20 and 30 find in which medium speed of light is least

Answer 1

WE KNOW VALUE OF SIN INCREASES BY INCREASE IN VALUE OF THETA

SINI DIVIDED BY SIN R GIVES US REFRACTIVE INDEX

IN CASE OF SIN 10

SIN 10 VALUE WOULD BE THE LEAST IN THE THREE CASES

SO THE REFRACTIVE INDEX WOULD THE MOST IN CASE OF SIN 10 (CASE A) AS THE REFRACTIVE INDEX WOULD BE THE HIGHEST IN CASE OF A

THEREFORE THE SPEED OF LIGHT WOULD BE LEAST IN MEDIUM A

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