State one function each of iris, pupil, and cornea.
State one function each of iris, pupil, and cornea.
Solution
a. Iris: It controls the amount of light entering the eye by changing the size of pupil.
b. Pupil: Pupil is a part of the eye through which light enters in the eye.
c. Cornea: It is a thin membrane which covers the eye ball. Light enters the eye through cornea where it is refracted most.