Question

The distance between an object and its real image formed
by a convex lens cannot be
(a) greater than 2 f (b) less than 2 f
(c) greater than 4 f (d) less than 4 f

Answer 1

Answer:

see answer in the google ok go

Answer 2

it's distance is 4f

Explanation:

but it's minimum distance is 4f so i think correct answer is (c).