Which of the following expressions represents the spectrum of Balmer series (If n is the principal quantum number of higher energy level) in Hydrogen atom ?

Options

A. `vecv= (R(n-1) (n+1))/(n ^(2)) cm ^(-1)`
B. `vecv = (R (n-2) (n+2))/(4n^(2)) cm^(-1)`
C. `vec v = (E (n-2) ( n +2))/(n ^(2)) cm^(-1)`
D. `vecv = (R (n -1) (n+1))/(4n^(2)) cm^(-1)`

Answer

B