1.

The near and far points of a person are at 50 cm and 200 cm respectively. He uses a contact lens to read a book placed at 25 cm. With this lens, he can clearly see up to a maximum distance of -

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The near and far points of a person are at 50 cm and 200 cm respectively. He uses a contact lens to read a book placed at 25 cm. With this lens, he can clearly see up to a maximum distance of -



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