Calculate the change in energy of an atom that emits a photon of wavelength 2.21 meters. (Planck’s constant is 6.626 x 10-34 joule seconds, the speed of light is 2.998 x 108 m/s)

Question

jfraser · Answer

you need the two equations for electromagnetic radiation

$$c = \lambda * \nu$$and$$E = h*\nu$$

use the first equation to find the frequency $\nu$ of the wave, and use the second equation to find the energy (E) of the wave

anonymous · Answer

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