An electron in a hydrogen atom makes a transition from an energy level with energy E1, to one with energy E2 and simultaneously emits a photon. The wavelength of the emitted photon is:
Correct answer: A. hc/(E1 - E2)
- A. hc/(E1 - E2)
- B. h/(E1 - E2)
- C. h/c(E1 - E2)
- D. (E1 - E2)/hc
Explanation
But as per ptb, the energy change is given by ∆E=E2-E1∆E=hv∆E=hc/λ E2- E1=hc/λ λ =hc/E2- E1 Ans
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About Spectrum of Hydrogen
The hydrogen spectrum consists of discrete emission lines produced when electrons fall between quantised energy levels and release photons. Questions use the Rydberg equation, photon energy and wavelength, and identify the Lyman, Balmer, Paschen, Brackett and Pfund series, which differ from continuous spectra.
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