Question

using cartesian sign convention give difference between concave and convex mirror

Answer 1

as per carte......focal length of cocave is always negative and that of convex is always positive

Answer 2

Answer:

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

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