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NEETChemistryStructure of Atom

Emission transitions in the Paschen series end at orbit n = 3 and start from orbit n and can be represented as- v = 3.29 × 10 15 (Hz) [ 1/3 2 – 1/n 2 ] Calculate the value of n if the transition is observed at 1285 nm and find the region of the spectrum.

Options

  1. An=5 and the spectrum lies in the infrared region.
  2. Bn=5 and the spectrum lies in the ultraviolet region.
  3. Cn=6 and the spectrum lies in the infrared region.
  4. Dn=6 and the spectrum lies in the microwave region.

Correct answer

A. n=5 and the spectrum lies in the infrared region.

Step-by-step solution

Correct Option is : (A) n=5 and the spectrum lies in the infrared region.

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