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What should be the value of refractive index n of a glass rod placed in air, so that the light entering through the flat surface of rod does not cross the curved surface of rod.
@ harsh the answer will be 1 . REason – total internal reflection should occur in this case . and if tir will occur then the light will not emerge through the curved surface . and we already knows that the refractive index of air is 1 . HOPE IT CLEARS YOUR DOUBT ALL THE BEST ..
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