A concave lens has a focal length of 0 5 m When combined

Last updated: 6/11/2023

A concave lens has a focal length of 0 5 m When combined with a second lens the combination has a power of 0 5D Which of the following could be the second lens A Concave lens of focal length 1 m B Convex lens of focal length 40 cm C Concave lens of focal length 40 cm D Convex lens of focal length 2 m