Which has the greatest energy, a photon of infrared light, visible light or ultraviolet light?

Answer Einstein's equation for the photoelectric effect, E = hf (where E is energy of a photon, h represents Planck's constant and f is the photon's frequency), indicates that the energy of a photon is di... Read More »

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Why Does Ultraviolet Light Cause Chemical Damage to Your Skin While Infrared Light Does Not?

Energy travels through space in the form of waves called electromagnetic radiation. Types of electromagnetic radiation include gamma rays, X-rays, ultraviolet rays, visible light, infrared rays, mi... Read More »

Which color of light carries the most energy per photon?

In terms of the visible spectrum of light, violet has the most energy per photon because it has the shortest wavelength, explains Professor Bill Blair from the physics and astronomy department at J... Read More »

What color of the visible light spectrum has the most energy per photon?

Blue/purple colors have the most energy per photon. Higher photon energy corresponds with shorter light wavelength. Violet light has the shortest wavelengths humans can see. Deep-red light has the ... Read More »

What is a photon of light?

A photon of light is the smallest "particle" or "packet" of energy in light. Atoms and molecules absorb photons. High energy light photons, such as X-rays, go through more matter before absorption ... Read More »