<h3>Concave or diverging lens is needed correct the vision of a nearsighted person whose far point is 30.0 cm</h3>
<em><u>Solution:</u></em>
Nearsighted person will not be able to see the distant objects clearly
Now, we want the near sighted person to see the distant objects clearly
<em><u>The lens equation is given as:</u></em>
For distant vision,
The image of 30 cm from eye will be 28.5 cm to left of spectacle lens
Therefore,
From lens equation,
The negative power -3.51 D denotes that a concave or diverging lens is needed