Myopia: identify it, its causes, and its correction with a ray diagram
The same question, asked 3 times: 2023*, 2025*, 2026. Every wording below, oldest first.
Try each one first, then open its answer.
Question 1
2023
29A person is suffering from an eye defect in which the far point of the eye is nearer than infinity. Identify the defect. List two main causes of this defect. Draw a ray diagram to show how this defect is corrected by using a suitable lens.Question 2
2023
31State reasons for Myopia. With the help of ray diagrams, show the (a) image formation by a myopic eye, and (b) correction of myopia using an appropriate lens.Question 3
2023
33A person cannot see distinctly the object placed beyond 5 m from his eyes. Name the defect of vision the person is suffering from. Draw a ray diagram to illustrate this defect. List its two possible causes. Name the lens used for the correction of this defect.Question 4
2023
31A person is unable to see clearly a poster fixed on a distant wall. He however sees it clearly when standing at a distance of about 2 m from the wall. (a) Draw ray diagram to show the formation of image by his eye lens when he is far away from the wall. (b) List two possible reasons of this defect of vision. (c) Draw ray diagram to show the correction of this defect using appropriate lens.Question 5
2025
31A person is suffering from an eye defect in which the far point of the eye is much nearer than infinity. Name the defect of vision the person is suffering from. List two main causes of this defect. Write the type of the corrective lens and draw a ray diagram to show the function of the corrective lens.Question 6
2026
37A person is suffering from a defect of vision due to the elongation of his/her eye ball. (a) Write the name of the defect of vision and write the other possible cause of this defect of vision. (b) This defect can be corrected by using a suitable lens. Draw the ray diagram for correction of this defect of vision.