Find the longest wavelength in the Paschen series, given R = 1.097 x 10^7m-1.
Correct answer: B. 18750 A
- A. 11097 A
- B. 18750 A
- C. 17884 A
- D. 19001 A
Explanation
Option B is correct according to the calculations.
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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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