Find the wavelength of the radiation emitted by hydrogen in the transitions A. n=3 to n=2, B. n=5 to n=4 and

C. n=10 to n=9.


We know that the wavelength is given by,



As the atom is hydrogen atom, so Z=1.


A. Here, n=2 and m=3.Thus,





B. Here, n=4, m=5.Thus,



C. Here, n=9, m=10. Thus,



1