Answer the following:
(i) A ray of light incident on face AB of an equilateral glass prism, shows minimum deviation of `30^(@)`. Calculate the speed of the light through the prism.
(ii) Find the angle of incidence at face AB so that the emergent ray grazes along the face AC.

A ray of light incident at an angle 90° with the face of an equilateral prism passes symmetrically. Calculate the refractive index of the material of the prism

A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation which of the following is true:

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 light ray is normally incident onone face of equilateral glass prism of refractive index sqrt(2) . The deviation of light ray is

A ray of light incident on an equilateral triangular glass prism of mu = sqrt(3) moves parallel to the base of the prism inside it. What is the angle of incidence for this ray ?

A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges.

A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges.

In figure, a ray of light PQ is incident normally on the face AB of an equilateral glass prism. Complete the ray diagram showing its emergence into air after passing through the prism. Take critical angle for glass= 42^(@) . (a) Write the angles of incidence at the faces AB and AC of the prism. (b) Name the phenomenon which the ray of light suffers at the face AB, AC and BC of the prism.

A ray of light is incident on a 60^(@) prism at the minimum deviation position. The angle of refraction at the first face (i.e. incident face) of the prism is-

A ray of light is normally incident on one face of an equilateral glass prism. Answer the following : (a) What is the angle of incidence on the first face of the prism? (b) What is the angle of refraction from the first face of the prism ? (c) What will be the angle of incidence at the second face of the prism ? (d) Will the light ray suffer minimum deviation by the prism ?