In the human eye, the LENS sits BEHIND the pupil and FOCUSES light onto:
AThe eyelid
BThe retina
CThe cornea
DThe iris
Answer & Solution
Correct answer: B. The retina
The lens is a converging lens (thicker at the centre). It focuses incoming light to form a sharp image on the retina at the back of the eye. The retina's nerve cells (rods + cones) detect the light and send signals via the optic nerve to the brain — which is how we 'see'.
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