When sodium is excited in a flame, two ultraviolet spectral lines at (wave length symbol)=372.1 nm and (wave length symbol)=376.4 nm respectively are emitted. Which wavelength represents photons with

a) high energy?
b) longer wavelengths?
c) higher frequencies?

Question

When sodium is excited in a flame, two ultraviolet spectral lines at (wave length symbol)=372.1 nm and (wave length symbol)=376.4 nm respectively are emitted. Which wavelength represents photons with

a) high energy?
b) longer wavelengths?
c) higher frequencies?

aaronq · Answer

higher energy -> shorter wavelength -> higher frequency
lower energy -> longer wavelength -> lower frequency