A plane wavefront is incident on (a) a prism (b) a convex lens ( c) a concave mirror. Draw the shpaes of the refracted/reflected wavefront in each case.

When a plane wavefront is incident on a double convex lens, the refracted wavefront is

A plane wavefront AB is incident on a concave mirror as shown. Then,the reflected wavefront will be

A plane wavefront is incident normally on a convex lens. Sketch the reflected wavefront emerging from the lens.

A plane wavefront incident on a reflecting surface at an angle of 30^(@) with horizontal. Find the angle of reflected wavefront with horizontal

When a plane wave front incident on a concave mirror as shown in figure then shape of reflected wave front just after reflection :-

Draw the following diagram, in which a ray of light is incident on a concave/convex mirror, on your answer sheet. Show the path of this ray, after reflection, in each case.

The refractive index of a medium changes as mu=mu_(0)[1-(x^(2)+y^(2))/(d_(2))]^(1//2) where mu_(0) is the refractive index on the z axis. A plane wavefront (AB) is incident along z axis as shown in the figure. Draw the wavefront at a later time Deltat . Is the wavefront getting focused?

A plane wavefront incident on a reflecting surface at and angle of 30^(@) with vertical. Find the angle (acute) of reflected wave with vertical.