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To find longest, wavelength radiation in Balmer series, the value of n used is:

Correct answer: C. 3

  • A. 2
  • B. 4
  • C. 3
  • D. Both A and C

Explanation

The Balmer series involves transitions where the electron falls to the second energy level (n=2) from higher levels (n=3, n=4, etc.). The longest wavelength corresponds to the transition from the first excited state (n=3) to the second state (n=2). Therefore, to find the longest wavelength radiation in the Balmer series, the value of n used is 3, because this is the transition that produces the longest wavelength

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About Atomic Spectra

Atoms emit or absorb light at specific wavelengths because electrons occupy quantized energy levels and change levels by absorbing or releasing photons. The topic covers emission and absorption spectra, spectral series, hydrogen’s line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.

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