Question

On what factors does the sign convention for reflection of spherical mirrors depend?​

Answer 1

Answer: Sign in the case of a convex mirror:

Since, object is always placed in front of the mirror hence object distance is taken as negative. Since, the centre of curvature and focus lies behind the convex mirror, so radius of curvature and focal length are taken as + (positive) in the case of convex mirror.

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Answer 2

Answer:

it is depend on whether it is concave mirror or it is convex mirror