Given below is a diagram depicting a defect of the human eye. Study th

1.	Given below is a diagram depicting a defect of the human eye. Study the same and then answer the questions that follows:(i) Name the defect shown in the diagram.(ii) Give two possible reasons for this defect of the eye in human beings.(iii) Name the parts labeled 1 to 4.(iv) Name the type of lens used to correct this eye defect.
Answer» (i) Myopia, Short-sightedness. (ii) The possible reasons for this defect may be: (1) The eyeball is lengthened from front to back. (2) The lens is too curved. (iii) (1) Vitreous chamber. (2) Fovea centralis (yellow spot) (3) Lens (4) Pupil . (iv) This defect can be corrected by suitable concave lens.

Given below is a diagram depicting a defect of the human eye. Study the same and then answer the questions that follows:(i) Name the defect shown in the diagram.(ii) Give two possible reasons for this defect of the eye in human beings.(iii) Name the parts labeled 1 to 4.(iv) Name the type of lens used to correct this eye defect.

Answer»

(i) Myopia, Short-sightedness.

(ii) The possible reasons for this defect may be:

(1) The eyeball is lengthened from front to back.

(2) The lens is too curved.

(iii) (1) Vitreous chamber.

(2) Fovea centralis (yellow spot)

(3) Lens

(4) Pupil .

(iv) This defect can be corrected by suitable concave lens.