PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
In the displacement method, a convex lens is placed in between an object and a screen. If one of the magnification is 3 and the displacement of the lens between the two positions is 24 cm, then the focal length of the lens is:
(a) 10 cm
(b) 9 cm
(c) 6 cm
(d) 16/3 cm