An object is placed 40 cm from a convex lens of focal length 30 cm. What is the image distance? - ELECTRONIC DEVICES Quiz | GKFix.in

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Question

An object is placed 40 cm from a convex lens of focal length 30 cm. What is the image distance?

A. 60 cm
B. 80 cm
C. 100 cm
D. 120 cm

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