Question

Match the statements in Column A with those in Column B.

Column A	Column B
(a) Power of a lens	(i) A lens used in photographic camera.
(b) Optical centre	(ii) A lens used for correcting shortsightedness use in eye.
(c) Second principal focus of lens	(iii) A point within a lens, such that any ray passing through it does not suffer refraction.
(d) Convex lens	(iv) Reciprocal of focal length in metres.
(e) Concave lens	(v) Parallel rays after refraction through a convex lens meet at a point on principal axis.

Answer 1

Column A	Column B
(a) Power of a lens	(iv) Reciprocal of focal length in metres.
(b) Optical centre	(iii) A point within a lens, such that any ray passing through it does not suffer refraction.
(c) Second principal focus of lens	(v) Parallel rays after refraction through a convex lens meet at a point on principal axis.
(d) Convex lens	(i) A lens used in photographic camera.
(e) Concave lens	(ii) A lens used for correcting shortsightedness use in eye.