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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 19 - Optical Instruments > A man, wearing glasses of power + 2D can read clearly a book placed at a distance of 40 cm from the eye. The power of the lens required so that he can read at 25cm from the eye is

A man, wearing glasses of power + 2D can read clearly a book placed at a distance of 40 cm from the eye. The power of the lens required so that he can read at 25cm from the eye is

A man wearing glasses of power + 2D can read clearly a book placed at a distance of 40 cm from the eye. The power of the lens required so that he can read at 25cm from the eye is