An electron makes a transition from n = 5 state to n = 2 state in the hydrogen atom. What is the frequency of the emitted photon?

An electron makes a transition from n = 5 state to n = 2 state in the

1.	An electron makes a transition from n = 5 state to n = 2 state in the hydrogen atom. What is the frequency of the emitted photon?
A.	4.9 X 1014 Hz
B.	5.9 X 1014 Hz
C.	6.9 X 1014 Hz
D.	7.9 X 1014 Hz
Answer» D. 7.9 X 1014 Hz