Lens formula is given by……………………………

The lens formula is given by:

1/f = 1/v - 1/u

Where:

"f" is the focal length of the lens.
"v" is the image distance (the distance between the image and the lens).
"u" is the object distance (the distance between the object and the lens).
This formula is used in optics to calculate the position and characteristics of images formed by lenses, whether they are converging (convex) lenses or diverging (concave) lenses.