Why is this?
Let's first understand the composition of sunlight, and visually see that sunlight is white light. If you do an experiment and let the sunlight pass through the prism, you will find that the white sunlight is divided into seven colors: red, orange, yellow, green, green, blue, and purple, which is often called "seven color light". Turning to the color of objects, we cannot see the color of objects that do not emit light in the dark corner. The color of the object we see is that the object reflects too much