A triangular prism of glass is shown in figure. A ray incident normally on one face is totally reflected. If `theta` is `45^(@)`, the index of refraction of glass is :

A trianglular prims of glass is shown in the figure. A ray incident normally to one face is totally reflected. If theta=45^(@) the refractive index of glass is

A trianglular prims of glass is shown in the figure. A ray incident normally to one face is totally reflected. If theta=45^(@) the refractive index of glass is

A glass prism is immeresed in water as shown in the figure. When a beam of light incident is incident normally on the face ab, it is internally reflected at the face ad. If the refractive index of glass is 1.5 and that of water is 4//3 , then

A glass prism is immeresed in water as shown in the figure. When a beam of light incident is incident normally on the face ab, it is internally reflected at the face ad. If the refractive index of glass is 1.5 and that of water is 4//3 , then

A ray of light incident normally on one face of a right isosceles prism is totally reflected. What must be the minimum value of refractive index of glass ? Give relevant calculations.

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