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How can we define color?

Color is the wavelength absorbed by an object.

Color is the wavelength refracted by an object.

Color is embedded in the atoms of an object

Color is the wavelength reflected off an object.

1 answer

Color is best defined as the wavelength reflected off an object. When light hits an object, certain wavelengths of light are absorbed by the material, while others are reflected. The wavelengths that are reflected determine the color we perceive that object to be. For example, a red apple appears red because it reflects the wavelengths of light that correspond to red while absorbing other wavelengths.