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) less energy

C) longer wavelength 

D) greater speed

E) greater momentum

Answer 1

The correct option is: (E) greater momentum

Explanation:

3 to 1 would be a higher energy emission. More energy means more frequency, and less λ but these are not choices. From p = h / λ, less λ means more momentum.