Difference between the wave length of 1^(st) line of Balmer series and last line of Paschen series for Li^(2+) ion is 1/(xR_H) then .x. is

Difference between the wave length of 1^(st) line of Balmer series and

1.	Difference between the wave length of 1^(st) line of Balmer series and last line of Paschen series for Li^(2+) ion is 1/(xR_H) then .x. is
Answer» SOLUTION :`1/(lambda_1) = R(1/(2^2) - 1/3^2) 9` `1/(lambda_2) = R(1/(3^2) - 1/(alpha^2))9` On solving `(lambda_1)/(lambda_2) = 1/(5R)`