The relationship between wavelength and energy of a photon is:
Therefore, wavelength, λ is expressed as:
, where h is the Plank's constant and c is the speed of light in a vacuum.
What is the wavelength, in nm, of a photon with energy (a) 0.30 eV, (b) 3.0 eV and (c) 30 eV? For each, is this wavelength visible light, ultraviolet or infrared?
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