Concave lens is used in case of _______.
Question 4
You are provided with a concave mirror, a convex mirror, a concave lens and a convex lens. To obtain an enlarged image of an object you can use either
(a) concave mirror or convex mirror.
(b) concave mirror or convex lens.
(c) concave mirror or concave lens.
(d) concave lens or convex lens.
Give reasons:
(1) You cannot enjoy watching a movie from a very short distance from the screen in a cinema hall.
(2) A simple microscope is used by watch repairers.
(3) A concave lens is used to correct myopia.
(4) In gold age bifocal lens is necessary for some person.
(5) Concave mirrors are used in solar devices.