Find the angle of incidence at which a ray of monochromatic light should be incident on the first surface AB of a regular glass prism ABC so that the emergent ray grazes the adjacent surface AC. (Refractive index of glass =1.6.)

At what angle, a ray of light should be incident on the first face AB of a regular glass prism ABC so that the emergent ray grazes the adjacent face AC ?

(a) Deduce the expression, by drawing a suitable ray diagram, for the refractive index of a triangular glass prisms in terms of the angle of minimum deviation (D) and the angle of prism (A). Draw a plot showing the variation of the angle of deviation with the angle of incidence. (b) Calculate the value of the angle of incidence when a ray of light incident on one face of an equilateral glass prism produces the emergent ray, which just grazes along the adjacent face. Refractive index of prism is sqrt2

Complete the path of the monochromatic light ray AB incident on the surface PQ of the equilateral glass prism PQR till it emerges out of the prism due to refraction.

The angle at which a ray of light be incident on one face of an equilateral prism,so that the emergent ray may graze the second surface of the prism is pi/x rad.then find "x" .( mu=2 )]

A ray LM of monochromatic light incident normally on one refracting surface AB of a regular glass prism ABC emerges in air from the adjacent surface C as shown in figure. Calculate the refractive index of the material of the prism.

A ray EF of monochromatic light is incident on the refracting surface AB of a regular glass prism ( refractive index =1.5 ) at angle of incidence i=55^(@) (Figure). If it emerges the adjacent face AC, calculate the angle of emergence .e..

A ray of light incident on the horizontal surface of a glass slab at 70^@ just grazes the adjacent vertical surface after refraction. Complete the critical angle and refractive index of glass.

A ray of light is incident at 60^(@) on one face of a prism of angle 30^(@) and the emergent ray makes 30^(@) with the incident ray. The refractive index of the prism is

A ray of light is incident at 60^(@) on one face of a prism of angle 30^(@) and the emergent ray makes 30^(@) with the incident ray. The refractive index of the prism is

A ray of light is incident at 65^(@) on one face of a prism of angle of 30^(@) and the emergent ray makes 35^(@) with the incident ray. The refractive index of the prism is: