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The wavelength of a certain line in the ...

The wavelength of a certain line in the Pashchen series is `1093.6nm`. What is the value of `n_(high)` for this line `[R_(H)=1.0973xx10^(-7)m^(-1)]`

Text Solution

Verified by Experts

The correct Answer is:
`6`
`lambda = 1093.6 nm " "R_(H) = 1.09xx10^(7)m^(-1)`
`=1093.6xx10^(-9)m" "n_(2)=?n_(1)=3`
`(10^(9))/(1093.6xx10^(7)xx1.09)=(1)/(9)-(1)/(n_(1)^(2))`
`(1)/(n_(2)^(2))=(1)/(9)=-0.83" "(1)/(n_(2)^(2))=(9)/(0.253)`
`n_(2)^(2)=36 " "n_(2)=6`
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