Question

What is the sign convention for object distance from a Concave mirror? Positive or Negative?​

Answer 1

Sign conventions

Sign conventionsDistances measured on the other side are negative. f, the focal length, is positive for a concave mirror, and negative for a convex mirror. When the image distance is positive, the image is on the same side of the mirror as the object, and it is real and inverted.

$\huge\underline\mathbb\pink{10Ƭнηχ+Fσllσω=Iηвσχ}$