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(D) The man is suffering from myopia (nearsightedness), where the far point is limited to $100 \, cm$. To see objects at infinity, the lens must form

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$- 1.0 \, D$

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(D) The man is suffering from myopia (nearsightedness), where the far point is limited to $100 \, cm$. To see objects at infinity, the lens must form a virtual image of an object at infinity at the person's far point of $100 \, cm$.Using the lens formula: $\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$Here, $v = -100 \, cm = -1 \, m$ (image formed at the far point) and $u = -\infty$ (object at infinity).$\frac{1}{f} = \frac{1}{-1} - \frac{1}{-\infty} = -1 \, m^{-1}$Power $P = \frac{1}{f (	ext{in meters})} = -1 \, D$.

$A$ man can see up to $100 \, cm$ of the distant object. The power of the lens required to see far objects will be

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