Chapter 13, Problem 22R

To determine

To fill: The appropriate word in the given blank space.

Answer to Problem 22R

Retina.

Explanation of Solution

Introduction:

The retina is the innermost part of the eye, which is light sensitive.

The light rays coming from the object after refracting from the lens of the eye, focus on the retina. Now the light is converted into the neutral signal by the retina. These neutral signals now sent to the brain for visual recognition. Retina situated at the back of the eye is the light sensitive part which converts light signal into an electrical signal.

Conclusion:

Hence, the inner part is called Retina.