Question

An object 2cm high is placed at a distance 2f1 from a convex lens. What is the height of the image formed ?

Answer 1

The height of the image is 2 cm.

Explanation:

Using the lens formula:

1/v - 1/u = 1/f

Given data:

u = 2f1

f = +ve

ho = 2 cm

Solution:

1/v - 1/-2f1 = 1/f

v = 2f

m = v/u = 1

m = h'/ho = 1

m = h'/2 = 1

h' = 2 cm

The height of the image is 2 cm.

Learn more about

What are convex lens​ ?

https://brainly.in/question/8616709