Q

A spherical mirror diverges incident rays. Which statements are true? (I) It is convex. (II) Its focal length is positive. (III) Its image can be obtained on a screen.

RRB Technicians Grade-III 23/12/2024 / Shift-III 2024
✓ Answer: B Both I and II
A convex mirror is diverging and has positive focal length under the Cartesian convention. Its image of a real object is virtual.
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