Q

A 3 cm tall object is placed 9 cm in front of a concave lens with focal length 6 cm. What is the approximate height of the image formed?

RRB Group D 13 Aug, 2026 (4:30 PM - 6:00 PM) 2026
✓ Answer: D 1.2 cm and upright
The correct choice is 1.2 cm and upright. It follows from the laws of reflection/refraction and the standard image-formation properties of lenses, mirrors or optical systems.
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