Section B: Give a short answer to the question given below.
State one important function of the following parts of the human eye:
(i) Retina
(ii) Pupil
(b) State the role of ciliary muscles in focussing objects at varying distances from the eye.
(i) Retina
(ii) Pupil
(b) State the role of ciliary muscles in focussing objects at varying distances from the eye.
(a) (i) Retina .
(ii) Pupil .
(b) When you are looking at objects closer to the eye, the ciliary muscles . This the curvature of the eye lens. The eye lens then becomes . Consequently, the focal length of the eye lens . This enables us to see nearby objects clearly.
Similarly, When you are looking at distant objects, the ciliary muscles . This the curvature of the eye lens. The eye lens then becomes . Consequently, the focal length of the eye lens . This enables us to see distant objects clearly.
Similarly, When you are looking at distant objects, the ciliary muscles . This the curvature of the eye lens. The eye lens then becomes . Consequently, the focal length of the eye lens . This enables us to see distant objects clearly.