What is a total reflecting prism ? State three actions that it can produce. Draw a diagram to show one such action of the total reflecting prism.

State one advantage of using a total reflecting prism as a reflector in place of a plane mirror.

State the consequences of total internal reflection?

What is the cause of dispersion of white light through a glass prism Draw a ray diagram to show the path of light when two identical glass prisms are arranged together in inverted position with respect to each other and narrow beam of white light is allowed to fall obliquely on one of the faces of the prisms.

A total reflecting equilateral prism can be used to deviate a ray of light through :

Explain the following terms: angle of reflection. Draw diagram/diagrams to show them.

A ray of light incident parallel to the base PQ of an isosceles right-angled triangle prism PQR suffers successive total internal reflections at the faces PQ and QR before emerging reversed in direction shown. If the refractive index of the material of the prism is mu , then

An object is viewed through a glass prism with its vertex pointing upwards. Draw a ray diagram to show the formation of its image as seen by the observer.

A total reflecting right angled isosceles prism can be used to deviate a ray of light through :

Explain the following terms : Angle of reflection Draw diagram/diagrams to show them.

(a) How does the angle of deviation produced by a prism change with increase in the angle of incidence. Draw a curve showing the variation in the angle of deviation with the angle of incidence at a prism surface. (b) Using the curve in part (a) above, how do you infer that for a given prism, the angle of minimum deviation delta_("min") is unique for a given light.