Observe the following diagram showing an image formation in an eye:

(a)Identify the defect of vision shown in the figure.
(b)List its two causes and suggest a suitable corrective lens to overcome this defect.

Observe the following diagram and answer the questions. Which eye defect is shown in this diagram ?

Observe the following diagram and answer the questions. how is this defect corrected ?

Observe the following diagram and answer the questions. What are the possible reasons for this eye defect ?

A child while playing with his father's spectacles, burnt a hole in a piece of tissue paper by focussing the image of the sun on the paper. (a) Name the defect of vision his father is suffering from. (b) List two causes of the defect. ( c) Draw a ray diagram to show this defect may be corrected using a suitable lens.

Identify the type of defect shows in the following figure : What type of substances show this defect ?

Given below is a diagram showing defect of human eye . Name the type of lens used to correct the eye defect.

Given below is a diagram showing defect of human eye . Give two possible reasons for this defect of eye in human beings .