Class X Sciences
[papers from previous years]
(a) A person cannot read newspaper placed nearer than 50 cm from
his eyes. Name the defect of vision he is suffering from. Draw a
ray diagram to illustrate this defect. List its two possible
causes. Draw a ray diagram to show how this defect may be
corrected using a lens of appropriate focal length.
(b) We see advertisements for eye donation on television or in
newspapers. Write the importance of such advertisements.