How do our eyes perceive colors?

1. Our eyes detect colors based on the temperature of the objects we see
2. Our eyes detect colors based on the size of the objects we see
3. Our eyes only detect black and white
4. Our eyes detect colors based on the combination of signals from cone cells and by which wavelengths of light are absorbed or reflected by objects

4. Our eyes detect colors based on the combination of signals from cone cells and by which wavelengths of light are absorbed or reflected by objects

Our eyes have three types of cone cells that are sensitive to different wavelengths of light - one for red, one for green, and one for blue. When light enters the eye, these cone cells send signals to the brain which then processes and interprets them as different colors. The colors we see are determined by the wavelengths of light that are absorbed or reflected by objects - for example, a red apple appears red because it absorbs all wavelengths of light except for red, which is reflected back to our eyes.