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?

Answer 1

\[E=hc/\lambda\]
Energy is more when wavelength is less.
Now, guess the answer.