The diagram alongside represents a section of a mammalian eye.
(i) Label the parts 1 to 5 of the diagram.
(ii) State the function of the parts labelled 4 and 5.
(iii) With the help of a diagram show the short sightedness.
Figure

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Solution

(i)

(ii) Label 4 represents the optic nerve. It connects the eye to the brain.
Label 5 represents the lens. The lens changes the focus of the eye by contracting or thinning, thereby changing its focal length.

(iii) Diagram showing short-sightedness:

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The diagram alongside represents a section of a mammalian eye. (i) Label the parts 1 to 5 of the diagram. (ii) State the function of the parts labelled 4 and 5. (iii) With the help of a diagram show the short sightedness. Figure

(i) (ii) Label 4 represents the optic nerve. It connects the eye to the brain. Label 5 represents the lens. The lens changes the focus of the eye by contracting or thinning, thereby changing its focal length. (iii) Diagram showing short-sightedness:

The diagram alongside represents a section of a mammalian eye.
(i) Label the parts 1 to 5 of the diagram.
(ii) State the function of the parts labelled 4 and 5.
(iii) With the help of a diagram show the short sightedness.
Figure

(i)

(ii) Label 4 represents the optic nerve. It connects the eye to the brain.
Label 5 represents the lens. The lens changes the focus of the eye by contracting or thinning, thereby changing its focal length.

(iii) Diagram showing short-sightedness: