(a) Concave Mirror: Because concave mirrors can produce a powerful parallel beam of light when a light source is placed at their principal focus.
(b) Convex Mirror: Because of its largest field of view.
(c) Concave Mirror: Because it concentrates the parallel rays of sun at principal focus.Answered by Shivani Kumari | 1 year ago
An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharply focused image can be obtained? Find the size and the nature of the image.