Physics, asked by vishalbakkashetty, 3 months ago

how can you decide the focal length of lens to be used to correct myopia deduce mathametically​

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Answered by singhe958
0

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Answered by rajeeevkjha
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Answer:

Calculation of focal length and power of correcting lens in hypermetropia.

First of all, you need to know that a concave lens is used to correct myopia.

So, the power of the lens will be negative. Also, we know that power of a lens is the reciprocal of the focal length in meters. That said, you have to know one of the factors to calculate the other. You cannot calculate both without knowing none.

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