Q

An object is 30 cm from a convex lens of focal length 10 cm. At what distance is the image formed?

RRB ALP & Technician 17/08/2018 / Shift-II 2018
✓ Answer: B 15 cm
1/v = 1/10 - 1/30 = 1/15, giving v = +15 cm.
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