The place where the optic nerve and retina meet is called blind spot

It is called so because there are no sensory cells at this place(cones and rods)

So we are not able to see anything at this point


Activity to check blind spot

We make a cross mark and round mark on sheet of paper

We concentrate on cross mark and keep bringing sheet of paper closer

Soon we are not able to see round mark


 if we do the opposite and concentrate on round mark,we are not able to see crossmark

  1. Class 8
  2. Chapter 16 Class 8 - Light

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo