At what distance the object should be placed in front of a concave len – InterviewSolution

1.	At what distance the object should be placed in front of a concave lens of focal length 20 cm so that the image will be formed at distance 10 cm from the lens? What is the magnification of the object? [4 MARKS]
Answer» At what distance the object should be placed in front of a concave lens of focal length 20 cm so that the image will be formed at distance 10 cm from the lens? What is the magnification of the object? [4 MARKS]

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