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OpenStudy (anonymous):
If a hydrogen atom in its ground state absorbs a photon of wavelength λ 1, then emits a photon of wavelength λ2, at what level is the electron after emission?
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OpenStudy (anonymous):
λ1 = 94. 9 nm and λ2 = 433.8 nm.
OpenStudy (aaronq):
use the rydberg equation twice
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