Question

explain mirror mirror formula how to use it

Answer 1

Mirror Formula 1/f=(1/u+1/v) where as f is focal length and image distance is (v) and object distance is (u)

Answer 2

Mirror Formula helps us to find:

a. Image distance which is represented as ‘v’.

b. Object distance which is represented as ‘u’.

c. Focal length which is represented as ‘f’.

And is written as :

1v+1u=1f

This formula is valid for all kinds of spherical mirrors, for all positions of the object. Although one needs to be careful about the values, one puts for u,v and f with appropriate sign according to the sign convention given above.