The wave number of the spectral line in the emission spectrum of hydrogen will be equal to `(8)/(9)` times the Rydberg's constant if the electron jumps from …………..:-

Options

A. `n = 3 " to " n = 1`
B. `n = 10 " to " n = 1`
C. `n = 9 " to " n = 1`
D. `n = 2 " to " n = 1`

Answer

A

Explanation

`bar(v) = R_(H) ((1)/(n_(1)^(2)) - (1)/(n_(2)^(2)))`
`(8)/(9) R_(H) = R_(H) ((1)/(n_(1)^(2)) - (1)/(n_(2)^(2))) or (1)/(n_(1)^(2)) - (1)/(n_(2)^(2)) = (8)/(9)`
This is so only when `n_(1) = 1, n_(2) = 3`