Physics · 2021
JEE Main · 26 February 2021, Shift 1 · Q19
If λ_1 and λ_2 are the wavelengths of the third member of Lyman and first member of the Paschen series respectively, then the value of λ_1: λ_2 is:
If $\displaystyle \lambda_1$ and $\displaystyle \lambda_2$ are the wavelengths of the third member of Lyman and first member of the Paschen series respectively, then the value of $\displaystyle \lambda_1: \lambda_2$ is :
Official answer
(2)
$\displaystyle 7$ : $\displaystyle 135$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.