A point source of light is placed on the principal axis of a concave mirror at a…
PHYSICS · Multi-part · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
A point source of light S is placed on the principal axis of a concave mirror at a distance of 60cm. The radius of curvature of the concave mirror is 80cm.
(1) At what distance from the concave mirror should a plane mirror be placed for the rays to converge again at point S after reflection from the concave mirror and then from the plane mirror?
(2) Will the position of the point where the rays meet change if they are first reflected from the plane mirror?