Question

A student sitting at the backbench in a classroom finds it difficult to read
the black board, but he can read his book comfortably.
(a) From what defect of vision is he suffering from?
(b) How can the above defect be corrected?
(c) State any one reason due to which this eye defect may be caused.

Answer 1

a -miopia
b-using concave lens
c- elongated of length of eye ball , shortening of focal length of the eye lens