Question

Observe and analyze table and figure. Write your inferences in the science diary.

While viewing near objects	While viewing distant objects
Ciliary muscles contract	Ciliary muscles relax
Ligaments relax	Ligaments stretch
Curvature of lens increases	Curvature of lens decreases
Focal length decreases	Focal length increases

Answer 1

• While viewing near objects curvature of lens increases. So the focal length increases.
• While viewing near objects the ciliary muscle contracts and ligaments relax. So the focal length increases.
• While viewing distant objects the ciliary muscles relax and the ligament stretch. So the focal length decreases.
• The capacity of the eye to change the curvature of lens depending on the distance between the eye and the object by adjusting the focal length.