Physics · 2019
JEE Main · 12 April 2019, Shift 2 · Q24
Consider an electron in a hydrogen atom, revolving in its second excited state (having radius 4.65 ). The de-Broglie wavelength of this electron is:
Consider an electron in a hydrogen atom, revolving in its second excited state (having radius $\displaystyle 4.65 \AA$ ). The de-Broglie wavelength of this electron is :
Official answer
(3)
$\displaystyle 9.7 \AA$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.