MHT-CET · Atoms and Nuclei (Class 12) · Quiz
5 real MHT-CET questions on Atoms and Nuclei (Class 12). Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
HARDIn a hydrogen atom, an electron transitions from the fourth orbit to the second orbit. If the Rydberg constant is R = 1.097 × 10⁷ m⁻¹, the wavelength of the emitted photon (in nm) is approximately: