Question

Which of the following represents an image that is located behind a mirror?

A. +di
B. -do
C. +do
D. -di

Answer 1

Step-by-step explanation:

There are some conventions while solving the problems based on mirrors. All parameters are taken like x-y coordinate system.

All the measurements are done from the optical centre of the mirror.

`d_i` is the image distance

`d_o` is the object distance

`-d_i` is the image distance which is formed behind the mirror.

`-d_o` is the object distance when an object is placed behind the mirror.

So,
`-d_i` shows the image that is located behind the mirror. Hence, this is the required solution.