GENERAL KNOWLEDGE

Detailed explanation-1: -When there is bright light, the iris closes the pupil to let in less light. And when there is low light, the iris opens up the pupil to let in more light.

Detailed explanation-2: -Your pupil lets light into your eye as the muscles of your iris change its shape. The lens in your eye focuses light that passes through your pupil. Light then goes to the back of your eye and hits your retina. Your retina turns light into electrical signals.

Detailed explanation-3: -Pupil: The pupil is the opening at the center of the iris through which light passes. The iris adjusts the size of the pupil to control the amount of light that enters the eye.

Detailed explanation-4: -The lens works together with the cornea to focus light correctly on the retina. When light hits the retina (a light-sensitive layer of tissue at the back of the eye), special cells called photoreceptors turn the light into electrical signals.