Question

find the wavelength of Halpha line of balmer series .value of rydberg constant R=1.1×10^7m^-1​

Answer 1

For Balmer series, λ1=R[221−n221]

For alpha line,  λα1=R[221−321]=X1

λα1=R×365=X1

R=536×X1...... (1)

For beta line, λβ1=R[221−421]=163R......(2)

Substitute equation (1) into (2) .

λβ