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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A slab of refractive index mu is placed in air and light is incident at maximum angle theta 0 from vertical. Find minimum value of mu for which total internal reflection takes place at the vertical surface.

A slab of refractive index mu is placed in air and light is incident at maximum angle theta 0 from vertical. Find minimum value of mu for which total internal reflection takes place at the vertical surface.

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