Chemistry · 2023
JEE Main · 24 January 2023, Shift 1 · Q53
If wavelength of the first line of the Paschen series of hydrogen atom is 720 nm, then the wavelength of the second line of this series is ____ nm.…
If wavelength of the first line of the Paschen series of hydrogen atom is $\displaystyle 720$ nm, then the wavelength of the second line of this series is $\displaystyle \_\_\_\_$ nm. (Nearest integer)
Official answer
From NTA’s final answer key for this paper.
492
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.