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The focal length of a thin biconvex lens is 20 cm. When an object is moved from a distance of 25 cm in front of it to 50 cm, the magnification of its image changes from m25 to m50. The ratio 2550mm is?

The focal length of a thin biconvex lens is 20 cm. When an object is moved from a distance of 25 cm in front of it to 50 cm, the magnification of its image changes from m25 to m50. The ratio 2550mm is?

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1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago

Dear student Please ask the question in standard notation Regards

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