1. What are the near point and far point of a normal human eye?
The near point of the human eye is defined as the at which an object clearly by a human eye . This near point for a normal human eye is .
The far point of the human eye is defined as the to which the objects clearly by the human eye. The far point is , for a normal human eye.
2. A student sitting at the back of the class finds it hard to see the writing on the blackboard. What vision defect might the student have, and how can it be corrected?
The student is suffering from or . It can be corrected by the use of or lens of an appropriate power.