Question

A student could clearly read a book placed 10cm away but could not clearly identify a fellow student 12m away.

1. Name the eye defect the student was suffering from
2. Explain why the student could not clearly identify his colleague yet could read the book.
3. Using a diagram, illustrate how the defect can be corrected.
4. Name the vitamin whose deficiency in the diet results in poor vision.

Answer 1

1. Long eyeball, resulting in rays from colleague(12m away) being focussed at point infront of retina. Light rays on book focussed on retina
2. Myopia/Short(near)-sightedness - reject Short(near)-sighted
3.   
   
4. Vitamin A