The eyes of a person are focused (i) on a nearby object, and (ii) on a distant object, turn by turn. In which case:
(a) the focal length of eye-lens will be the maximum ?
(b) the converging power of eye-lens will be the maximum?
(a) The focal length of eye-lens will be the maximum when the eyes of a person are focused on a distant object.
(b) The converging power of eye-lens will be the maximum when the eye of a person is focused on a nearby object.