Which of the following is the light sensitive portion of the human eye?

Correct option is A

Sol. The retina is the innermost, light-sensitive layer of the eye that contains rods and cones for vision. It plays a critical role in converting light into electrical signals that are sent to the brain for visual processing, allowing us to see.
Explanation of each option:
· (a) Retina – Correct. The retina is responsible for detecting light and sending visual signals to the brain through the optic nerve. It contains photoreceptor cells (rods and cones) that are vital for vision.
· (b) Conjunctiva – Incorrect. The conjunctiva is a mucous membrane that covers the sclera (white part of the eye) and the inside of the eyelids, but it doesn't participate in vision or light detection.
· (c) Cornea – Incorrect. The cornea is a transparent layer that covers the front of the eye. While it helps focus light, it is not sensitive to light itself.
· (d) Sclera – Incorrect. The sclera is the white part of the eye that provides structural support and shape but does not play a role in light sensitivity or vision.