If an electron in a hydrogen atom jumps from the third orbit to the second orbit, it emits a photon of wavelength λ. When it jumps from the second to the first orbit, the corresponding wavelength of the photon will be
1
\(\frac{5\lambda}{27}\)
2
\(\frac{7\lambda}{20}\)
3
\(\frac{16\lambda}{9}\)
4
\(\frac{20\lambda}{7}\)