Question

calculate the wavelength of the radiation released when an electron moves from n=5 to n=2 in nanometers

Answer 1

Apply Rydberg's formula:
\[1/\lambda = R(1/(n1)^{2} -1/(n2)^{2})\] Where R is rydberg's constant=10973731.6 m-1 here n1=2,n2=5. solve for lambda and get the answer.