NCERT Exercise 12.5 - Atoms
Question: A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
Answer: **NCERT answer:** 9.7 × 10 – 8 m; 3.1 × 1015 Hz.
Full step-by-step NCERT solution with diagrams on Something by Zero.