Question

30. The distance between a real object and its real
image is 56 cm formed by converging lens, focal
length of lens is
(1) fs 14
(2) f> 14
(3) f = 14
(4) f = 28​

Answer 1

Answer:

3) f= 14

Explanation:

actually we know that converging lens is convex lens so,the distance between real object and real image is 4f ,where f is focal length

so: 56= 4f

therefore the answer is 14

so the option is 3