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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A glass rod having square cross- section is bent into the shape as shown in the figure. The radius of the inner semi-circle is R and width of the rod is d. Find the minimum value of d/R so that the light that

A glass rod having square cross- section is bent into the shape as shown in the figure. The radius of the inner semi-circle is R and width of the rod is d. Find the minimum value of d/R so that the light that

and glass it enters water. If the refraction index of glass and water are 1.5 and 1.3 Light is incident from air on an oil layer at an incident angle of 30. After moving through the oil 1 oil 2