A student has faced difficulty to read letters of book at a normal distance means that he has hypermetropia or long-sightedness.
A spectacle with convex lens and suitable focal length should be used by the student to remove this defect. Its ray diagram is given above.

Question

A student has faced difficulty to read letters of book at a normal distance due to defects of vision. How is the defect removed by the use of spectacles? Show it with ray diagram only.

Arpit Sundas · Accepted Answer

Draw ray diagrams each showing (i) myopic eye and (ii) hypermetropic eye.

A student has faced difficulty to read letters of book at a normal distance means that he has hypermetropia or long-sightedness.

A spectacle with convex lens and suitable focal length should be used by the student to remove this defect. Its ray diagram is given above.