- #1

- 1

- 0

## Homework Statement

The image obtained with a converging lens is upright and 3x the length of the object. The focal length of the lens is 20cm. Calculate the object and image distances

## Homework Equations

I have absolutely no idea how to even start this question

## The Attempt at a Solution

1/object + 1/image = 1/focal (lens equation )

1/ob + 1/im= 1/20

M = ob/im ( magnification formula)

3= ob/im

I tried solving for each variable but it wasnt working...