A proton of mass ' mp ' has same energy as that of a photon of wavelength ' λ '. If the proton is moving at non-relativistic speed, then ratio of its de Broglie wavelength to the wavelength of photon is.
Held on 28 Jan 2025 · Verified 6 Jul 2026.
c1mpE
c1mp2E
2c1mpE
c12 mpE
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