Hydrogen atom photon wavelength comparison · CAP 2019 #25
Physics · quantum-mechanics
Problem
Compare the photon emitted when an electron drops from the n=2 to the n=1 state to the photon emitted when an electron drops from n=3 to n=2. Which photon has the longer wavelength? Electron's ground state energy is -13.6 eV. (1 eV = 1.602×10⁻¹⁹ J)
a) The photon emitted in the n=2 to n=1 transition
b) The photon emitted in the n=3 to n=2 transition
c) Both have same wavelength
d) Not enough information given