Which of the following has the greatest energy per photon?Group of answer choicesRed LightUltraviolet raysGreen LightBlue Light
Question
Which of the following has the greatest energy per photon?Group of answer choicesRed LightUltraviolet raysGreen LightBlue Light
Solution
The energy of a photon is given by the equation E=hf, where E is energy, h is Planck's constant, and f is frequency. The frequency of a photon is inversely proportional to its wavelength. This means that photons with shorter wavelengths have higher frequencies and therefore more energy.
Looking at the electromagnetic spectrum, ultraviolet rays have shorter wavelengths than visible light (red, green, blue). Therefore, ultraviolet rays have the greatest energy per photon among the given choices.
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