Physics · 2021
JEE Main · 22 July 2021, Shift 2 · Q10
An electron of mass m_e and a proton of mass m_p are accelerated through the same potential difference. The ratio of the de-Broglie wavelength…
An electron of mass $\displaystyle \mathrm{m}_{\mathrm{e}}$ and a proton of mass $\displaystyle \mathrm{m}_{\mathrm{p}}$ are accelerated through the same potential difference. The ratio of the de-Broglie wavelength associated with the electron to that with the proton is :
Official answer
(4)
$\displaystyle \sqrt{\frac{\mathrm{m}_{\mathrm{p}}}{\mathrm{~m}_{\mathrm{e}}}}$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.