What color is an object when there is no light?

The color of the object "is often described as the physical properties of the object, with considerable stability, but implicit in the premise that "under natural light conditions", leaving it aside is as absurd as leaving the pressure to discuss the volume of a gas of a certain mass. In this sense, the color of an object is the same when there is no light as when there is light, for example, if someone is very capable and slaughters a chicken at night with his eyes closed when there is no light, you can't say that the chicken's blood is black.

Of course, from an "optical" point of view, it's a different story.

If "no light" means that there is no illuminated source, nothing can be seen.

If "no light" means that no light is emitted from an object, then there are two cases:

1. If the object does not emit light, but absorbs light, the object is black;

2. If an object does not emit light or absorb light, the object is invisible, just like air.

One layer deeper: 1. The object does not release energy, but absorbs energy, then the object is a black hole;

2. If an object does not emit energy or absorb energy, then the object cannot be perceived, or does not exist, or is impossible.

If it can't emit light on its own, it's black.

You can shine by yourself, and you see for yourself what color it is.

The color of the object we see is the color in the beam of light that the object cannot absorb, which is reflected and the part of the light that we see that is not absorbed. The beam seems to be compounded, and there is a white light! It's useless for a long time, it's not too clear, you can ask a biology or physics teacher.

When sunlight hits an opaque object, the light is (reflected) and absorbed.

Reflection of light. It refers to the phenomenon that when light propagates to different substances, it changes the direction of propagation at the interface and returns to the original substance. Light is reflected when it encounters the surface of water, glass, and many other objects.

When light changes the direction of propagation at the interface between two substances and then returns to the original substance, it is called the reflection of light.

1. Specular reflection.

Parallel rays of light are also parallel when they hit a smooth surface, and this reflection is called specular reflection.

2. Diffuse reflection.

Parallel rays of light hit an uneven surface, and the reflected rays go in all directions, a reflection called diffuse.

3. Directional reflection: The reflection between diffuse reflection and specular reflection is called directional reflection, also known as non-Lambert reflection, which is manifested as reflection in all directions, and the intensity of reflection in all directions is not uniform.

Summary. Luminous things do not necessarily have colors, all light is the same color, for example, many monochromatic lights contain only one frequency of light, that is, there is only one color for the human eye. Like infrared light and so on.

The light of the flashlight and the light of the candle are mixed light, which is made up of a mixture of 7 different frequencies of visible monochromatic light.

Do glowing whispers have colors? Do all the starvation light have a color? Is color light? What is light? Do objects that don't emit light have color? Does an object that doesn't emit light exist?

I'm glad to answer for you that luminous things don't necessarily have a color, all light is the same color, for example, many monochromatic lights only contain one frequency of light, that is, there is only one color for the human eye. Like infrared light and so on. The light of the flashlight and the light of the candle are mixed light, which is a mixture of 7 different frequencies of visible monochromatic light.

There is no color in this world, color is just the feeling of light brought about by the burning human eye, right? There is no color in this world, color is only the feeling of light brought about by the crooked eyes of the human eye, right?

No, there are colors in this world.

The color of an object is determined by the energy level of the electron orbital outside the molecule or atom. The different energy levels of the electron orbital determine which light is reflected, and the light reflected back is the light that our eyes see, which is the color of the object.