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Science CBSE Homework Assignments
Class 10
The human eye and colourful world
Power of lens
3.
Power of corrective lens
Question:
2
m.
The defective eye of a person has near point \(0.5\ m\) and point \(3\ m\). The power of corrective lens required for (i) reading purpose and (ii) seeing distant objects, respectively are:
\(0.5\ D\) and \(+3\ D\)
\(+2\ D\) and \(-1/3\ D\)
\(-2\ D\) and \(+1/3\ D\)
\(0.5\ D\) and \(-3\ D\)
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