NEET2004ChemistryStructure of AtomActual
Which is the shortest wavelength line in the Lyman series of the hydrogen spectrum? ( R=1.097 10⁻² ~nm ⁻¹ )
Options
- A94.21 nm
- B91.16 nm
- C911.6 nm
- D933.6 nm
Correct answer
B. 91.16 nm
Step-by-step solution
For Lyman series, 1 =R ( 1 (1)^2 - 1 n^2 ) hence, for to be smallest, n should be greatest (i.e., ) 1 _ =1.097 10⁻² (1- 1 ^2 ) aligned & =1.097 10⁻² or _ & = 1 1.097 10⁻² =91.16 ~nm aligned