Physics · 2025
JEE Main · 28 January 2025, Shift 1 · Q43
A proton of mass ' m_p ' has same energy as that of a photon of wavelength ' λ '. If the proton is moving at non-relativistic speed, then ratio of…
A proton of mass ' $\displaystyle \mathrm{m}_{\mathrm{p}}$ ' has same energy as that of a photon of wavelength ' $\displaystyle \lambda$ '. If the proton is moving at non-relativistic speed, then ratio of its de Broglie wavelength to the wavelength of photon is.
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle \frac{1}{c} \sqrt{\frac{E}{2 m_p}}$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.