Question

Calculate the wavelength of the radiation released when an electron moves from n=5 to n=2

Answer 1

\[1/\lambda = R ( 1/na ^{2} -1/nb ^{2})\]
\[R = 1.097 \times 10^{7}\]
\[1/\lambda = R (1/(2)^{2}-1/(5)^{2})\]
\[1/\lambda = R (99/25)\]
\[\lambda = 25/99R\]

Answer 2

thank you!