Question

Make a round mark and a cross mark on a sheet of paper with the spot to the right of the cross. The distance between the two marks may be 6-8cm. Hold the sheet of paper at an arm’s length from the eye. Close your left eye. Look continuously at the cross.
a) What do you observe in the above activity?
b) What is the reason behind your observation?​

Answer 1

Answer:

after seeing that for 20 minutes u will faint