Question #6dc3b
1 Answer
Dec 15, 2017
i don't know if you are asking for mirror or a lens. So i will answer them both
Explanation:
in case of mirror:
mirror formula is
since f is equal to v,that means
adding
in case of lens:
lens formula is
since f is equal to v,that means
adding
So value of focal length is equal to image distance when object was kept at infinity