The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to

Q. 1 :- The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to 
(a) presbyopia.
(b) accommodation.
(c) near-sightedness.
(d) far-sightedness.

 

Answer:-

(b) accommodation.