Question

A bulb is located on a wall. Its image is to be
obtained on a parallel wall with the help of a
convex lens. If the distance between the two walls is d, then required focal length will be
(1) Only
(2) Only
(3) More than
but less than
4) Less than or equal to​

Answer 1

Answer:

2 is corect

Explanation:

i dont know the ans sry plz forgive meee