With reference to the functioning of the eye, answer the questions th

1.	With reference to the functioning of the eye, answer the questions that follow : (i) What is meant by power of accommodation of the eye ? (ii) What is the shape of the lens during (1) near vision. (2) distant vision ? (iii) Name the two structures in the eye responsible for bringing about the change in the shape of the lens. (iv) Name the cells of the retina and their respective pigments which get activated (1) in the dark (2) in light
Answer» (i) It is the ability of the body to focus clearly on objects, both close and distant from the eye. (ii) (1) More convex or almost round (2) Less convex or almost flat (iii) Ciliary muscles and suspensory ligaments. (iv) (1) Rods, rhodopsin (2) Cones, iodopsin

With reference to the functioning of the eye, answer the questions that follow : (i) What is meant by power of accommodation of the eye ? (ii) What is the shape of the lens during (1) near vision. (2) distant vision ? (iii) Name the two structures in the eye responsible for bringing about the change in the shape of the lens. (iv) Name the cells of the retina and their respective pigments which get activated (1) in the dark (2) in light

Answer»

(i) It is the ability of the body to focus clearly on objects, both close and distant from the eye.

(ii) (1) More convex or almost round (2) Less convex or almost flat

(iii) Ciliary muscles and suspensory ligaments.

(iv) (1) Rods, rhodopsin (2) Cones, iodopsin