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ChemistryJEE Main 28 Jan 2026, Shift 2·Q9·MCQ·Easy–moderate

Structure of Atom · Photon energy from wavelength and frequency

The wavelength of photon ‘A' is 400 nm. The frequency of photon ‘B' is 1016 s−110^{16}\,\mathrm{s^{-1}}. The wave number of photon ‘C' is 104 cm−110^{4}\,\mathrm{cm^{-1}}. The correct order of energy of these photons is :
  1. (1)C >> B >> A
  2. (2)B >> A >> C
  3. (3)A >> B >> C
  4. (4)A >> C >> B

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See the full 28 Jan 2026, Shift 2 paper