Question

If you look straight at an object when it is nearly
dark, you may find it difficult to see it. It is easier
to see if you look just to one side of it. Explain
why this is

Answer 1

Answer:

When you don't look directly at something, it is focused on parts of the retina mostly populated by rod photoreceptors. These are more sensitive to dim light than the cones, which are clustered at the part of retina you use to directly look at something.