When an object lies at the focus of a concave mirror

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

Problem

When an object lies at the focus of a concave mirror, the position of the image formed and its magnification are (1) Pole and unity (2) Infinity and unity (3) Infinity and infinity (4) Centre of curvature and unity

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