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OpenStudy (anonymous):
What is the energy of a photon of light having a wavelength of 4.5 x 10^-7 meters? (Planck’s constant is 6.626 x 10^-34 joule seconds; the speed of light is 2.998 x 108 m/s)
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OpenStudy (taramgrant0543664):
Use the formula E=hc/lambda, where E is energy, h is Planks constant, c is the speed of light and lambda is your wavelength. Make sure that your c and wavelength are in the same units!
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