1.

(a) A convex lens has 4 dioptre power having a focal length 0.25 m(b) A convex lens has –4 dioptre power having a focal length 0.25 m(c) A concave lens has 4 dioptre power having a focal length 0.25 m(d) A concave lens has –4 dioptre power having a focal length 0.25 m

Answer» (a) A convex lens has 4 dioptre power having a focal length 0.25 m


Discussion

No Comment Found

Related InterviewSolutions