Is based on the position and length of the shadow cast by an object.

The light

Explanation:

Light is part of the spectrum of electromagnetic radiation. It is usually said to have the shape of a wave. Our eye can see the light of wavelength 380nm to 780nm.

Those wavelengths of light or colors of light that the object reflects come to our eye and we see them, and those that the object absorbs we do not see. In that way, from the spectrum of all wavelengths of light that fall on a certain object, one stands out, which is reflected and we see it as the color of that object.