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. `bar(upsilon) = (R(n-1) (n+1))/(n^2)`
B. `bar(upsilon) = (R(n-2) (n+2))/(4n^2)`
C. `bar(upsilon) = (R(n-1) (n+2))/(n^2)`
D. `bar(upsilon) = (R(n-1) (n+1))/(4n^2)`

Answer

B

Explanation

`bar(upsilon)= R (1/(2^2) - 1/(n^2)) , bar(upsilon) = (R(n-2) (n+2))/(4n^2)`