MHT CET Physics question

Physics Ray Optics and Optical Instruments MHT CET

In order to obtain a real image of magnification 2 using converging lens of focal length 20 cm, where should an object be placed

(A)50 cm
(B)30 cm
(C) cm
(D) cmCorrect

Answer: (D)

Solution

A real image from a converging lens is inverted so , ; then gives and cm (object 30 cm in front of the lens, with the

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Question ID VK-069334