Question

A biconvex lens has a radius of curvature of magnitude 20 cm. Which one of the following options describe best

Answer 1

(4) Real, inverted, height = 4 cm.

Since, the biconvex lens has a radius of curvature of magnitude 20 cm.  

In general we have assumed µ = 1.5, so, f = 20 cm and calculate v = 60 cm the correct answer is Real, inverted, height = 4 cm so that they are used for accurate measurements in the biconvex lens with the radius.