PhysicsLight: refractionJAMB
An object is placed 30 cm from a converging lens of focal length 10 cm. The image distance is:
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Answer: B. 15 cm
1/f = 1/u + 1/v → 1/10 − 1/30 = 1/v → v = 15 cm.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.