A right prism is to be made by selecting a proper material and the angles A and B `(BleA)` as shown in figure. It is desired that a ray of light incident normally on AB emerges parallel to the incident direction after two internal reflection.a. What should be the minimum refractive index `mu` for this to be possible? b. `For mu=5/3` is it possible to achieve this with the angle A equl to 60 degrees?

A right angled prism is to be made by selecting a proper material and the angles A and B (BleA), as shown in figure. It is desired that a ray of light incident on the face AB emerges parallel to the incident direction after two internal reflections. (a) What should be the minimum refractive index n for this to be possible? (b) For n=5/3 is it possible to achieve this with the angle B equal to 30 degrees?

A right angled prism is to be made by selecting a proper material and the angles A and B (BleA), as shown in figure. It is desired that a ray of light incident on the face AB emerges parallel to the incident direction after two internal reflections. (a) What should be the minimum refractive index n for this to be possible? (b) For n=5/3 is it possible to achieve this with the angle B equal to 30 degrees?

A right-angled prism is made up of a material of refractive index mu . It is desired that a light ray incident normally on PQ emerges parallel to the incident direction after suffering two total internal reflections . In which of the following conditions is this possible ?

What is the refractive index of the material of the glass prism shown in the figure, if a ray of light incident normally at the face AB emerges along the face AC?

What should be the minimum value of refractive index of a prism, refracting angle A, so that there is no emergent ray irrespective of the angle of incidence?

What should be the minimum value of refractive index of a prism, refracting angle A, so that there is no emergent ray irrespective of the angle of incidence?

A drop of liquid is spread over the hypotenuse of a right angled isosceles prism as shown in Fig. and a ray of light is incident normally on face AB of the prism. If refractive index of liquid is sqrt(2) , then for total internal reflection to occur, refractive index of material prism should be :

An equilateral triangular prism is made of glass (mu = 1.5) . A ray of light is incident normally on one of the faces. The angle between the incident and emergent ray is

An equilateral triangular prism is made of glass (mu = 1.5) . A ray of light is incident normally on one of the faces. The angle between the incident and emergent ray is