Determine the focal length of a convex mirror whose radius of curvature is

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

Determine the focal length of a convex mirror whose radius of curvature is 40 cm40\,\text{cm}. Choose the option with the correct sign. (a) −20 cm-20\,\text{cm} (b) +20 cm+20\,\text{cm} (c) +40 cm+40\,\text{cm} (d) −40 cm-40\,\text{cm}

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