A transparent solid cylindrical rod has refractive index of 2√3. It – InterviewSolution

1.	A transparent solid cylindrical rod has refractive index of 2√3. It is surrounded by air. A light ray is incident on the axis at one end of the rod as shown in figure.The incident angle θ for which the light ray grazes along the wall of the rod is
Answer» A transparent solid cylindrical rod has refractive index of $\frac{2}{\sqrt{3}} .$ It is surrounded by air. A light ray is incident on the axis at one end of the rod as shown in figure. The incident angle $θ$ for which the light ray grazes along the wall of the rod is

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