I’ve got a colour changing light that cycles through all the colours. Whenever red shines on its own, the whole room goes a bit darker. When blue or green light is added, the whole room instantly gets a bit brighter. Is this a trick of the eye or something to do with the light itself? (best seen when it is the only light source)
In: Physics
So all energy is on a spectrum right, visible light is just one portion of that spectrum and that spectrum is arranged by the amount of energy associated with them. Red is the lowest energy of the visible light spectrum, then progressively as you work through the rainbow the different colours increase in energy, and that carries on into many different forms of energy that we can’t see like infrared, x-rays, gamma rays, etc. So the way energy is arranged makes red light slightly dimmer. If you had a red laser pointer and green one with the same power, the green would appear to travel further
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