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A far sighted person has a near point of...

A far sighted person has a near point of `60"cm"` . What power lens should be used for eye glasses such that the person can be read this book at a distance of `25` cm.

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To solve the problem of determining the power of the lens required for a far-sighted person to read a book at a distance of 25 cm, we can follow these steps: ### Step 1: Understand the Problem A far-sighted person has a near point of 60 cm, which means they can only see objects clearly that are at least 60 cm away. We need to find the power of the lens that will allow them to read a book at a distance of 25 cm. ### Step 2: Use the Lens Formula The lens formula is given by: \[ ...
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