The human eye forms an image of an object at its
The retina is the layer of nerve cells lining the back wall inside the eye. This layer senses light and sends signals to the brain, so you can see.
Why does the sky appear dark instead of blue to an astronaut?
Why does the Sun appear reddish early in the morning?
Explain why the planets do not twinkle?
Why do stars twinkle?
What happens to the image distance in the eye when we increase the distance of an object from the eye?