Question

2. What is mirror equation?​

Answer 1

Explanation:

The mirror equation expresses the quantitative relationship between the object distance (do), the image distance (di), and the focal length (f). ... These two equations can be combined to yield information about the image distance and image height if the object distance, object height, and focal length are known.

Answer 2

Answer:

1f=1v+1u.

Here image distance measured from pole P is in the direction of incident ray hence will be taken as positive but focal length and object distance will be taken as positive.