Question: The diagram shows light being emitted due to a transition from the n=3 to the n=2 level of a hydrogen atom in the Bohr model. If the transition were from the n=3 to the n=1 level instead, the light emitted would have A) lower frequency  B) longer wavelength  C) greater speed  D) greater momentum. Please choose an answer from [A, B, C, D].
Answer: D