Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 3: ASSESSMENT ZONE

Rub your eye if something gets into it.

Which part of the eye functions for the power of accommodation?

Give reasons:
 It is very useful to us that all surfaces do not give regular reflection. 

State the functions of the following parts of the eye.

Retina 

State the functions of the following parts of the eye.

Optic nerve.

State the functions of the following parts of the eye.

Iris

If an incident ray makes an angle of $40°$ with the mirror, then the angle between incident ray and reflected ray is $k°$. Give the value of $k$.

If the angle between incident ray and reflected ray is $70°$, then what is the angle of reflection? Write your answer in terms of degrees$\left(°\right)$.