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Metals
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Referring to LEDs as I'm not aware of any other "colour-producing" light, does blue light use more energy than red light?
Planck's formula (E=hf) leads me to believe that blue light would drain a battery quicker than red, due to its higher frequency. Surely a device emitting blue light would require more energy (more current), so wouldn't red and green lights which have a lower frequency consume less power than blue, resulting in a slightly longer battery cycle?
Planck's formula (E=hf) leads me to believe that blue light would drain a battery quicker than red, due to its higher frequency. Surely a device emitting blue light would require more energy (more current), so wouldn't red and green lights which have a lower frequency consume less power than blue, resulting in a slightly longer battery cycle?