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 the rod does not cross the curved surface of the rod?

What should be the value of angle theta so that light entering normally through the surface AC of a prism (n=3//2) does not cross the second refracting surface AB?

What should be the value of angle theta so that light entering normally through the surface AC of a prism (n=3//2) does not cross the second refracting surface AB?

Light is incident at an angle i on one planer end of a transparent cylinderical rod of refractive index mu. Find the least value of mu so that the light entering the rod does not emerge from the curved surface of the rod irrespective of the value of i.

What should be the value of angle  so that light entering normally through the surface AC of a prism (n = 3/2) does not cross the second refracting surface AB.

Light is incident at an angle alpha on one planar end of a transparent cylindrical rod of refractive index mu . Determine the least value of mu so that the light entering the rod does not emerge from the curved surface of rod irrespective of the value of alpha

Does the refractive index of glass depend on the colour of light? If so, how?

The refractive index of glass with respect to air is 1.5. What is the value of the refractive index of air with respect to glass?

Light enters at an angle of incidance in a tranjsparent road of refractve index mu. for what value of the refractive index of the material of the rod the light once entered into it will not leave it through its lateral face whatsoever be the value of angle of incidance ?