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Question
Which part of the eye controls the amount of light entering in it?
Which part of the eye controls the amount of light entering in it?
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Solution
The correct option is A Iris
The cornea is the transparent layer of the eye located within otherwise opaque sclera. It serves to refract the light rays. Iris is the coloured part of the eye that controls the amount of light entering the eye by adjusting the size of the pupil, a hole shaped opening in the middle of the eye. Ciliary body and the attached suspensory ligament change the shape (flattened or round) of the lens through relaxation and contraction of ciliary muscles and thereby the focal length to focus on a distant and near object. Thus, the correct answer is option C.
The cornea is the transparent layer of the eye located within otherwise opaque sclera. It serves to refract the light rays. Iris is the coloured part of the eye that controls the amount of light entering the eye by adjusting the size of the pupil, a hole shaped opening in the middle of the eye. Ciliary body and the attached suspensory ligament change the shape (flattened or round) of the lens through relaxation and contraction of ciliary muscles and thereby the focal length to focus on a distant and near object. Thus, the correct answer is option C.
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