Q

A candle is 25 cm from a convex lens of focal length 15 cm and forms a real image. What is the magnification?

RRB Group-D 04/08/2026 (9:00 AM - 10:30 AM) 2026
✓ Answer: A -1.5
1/v = 1/15 - 1/25 = 2/75 gives v = 37.5 cm. Magnification m = v/u = 37.5/(-25) = -1.5.
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