A curved mirror converges a parallel beam of light incident on it to its focus, the mirror is
parabolic
concave
convex
plane mirror
Draw suitable diagrams to illustrate how a beam of light incident parallel to the principal axis is reflected by :
(a) a concave mirror, and (b) a convex mirror.
Which of the following can make a parallel beam of light when light from a point source is incident on it?
(a) Concave mirror as well as convex lens
(b) Convex mirror as well as concave lens
(c) Two plane mirrors placed at 90 to each other
(d) Concave mirror as well as concave lens
Why do concave mirror converge parallel beams of light, and convex mirror do not ?