The lens used to rectify the disease, 'Myopia' ?
AConvex
BConcave
CBiconvex
DBiconcave
Answer:
B. Concave
Read Explanation:
In myopia, the eyeball is too long or the eye’s focusing power is too strong, so parallel rays from distant objects focus in front of the retina, making distant vision blurry.
A concave (diverging) lens placed before the eye spreads out (diverges) the incoming light slightly, reducing the overall converging power of the eye.
This shifts the focal point backward so that the image now forms on the retina, restoring clear distance vision.