A proton has a speed of 7.2 x $10^4$ m/s.What is the energy of a photon that has the same wavelength as the de Broglie wavelength of this proton? (m_electron = 9.11 × 10^-31 kg,c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s) A)230 keV B)150 keV C)300 keV D)370 keV E)440 keV

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Quizplus · Accepted Answer

The de Broglie wavelength of the proton is calculated using λ = h/(mv). The energy of a photon with this wavelength is E = hc/λ. Calculating these gives approximately 230 keV.

A Proton Has a Speed of 7 10410^4104 M/sWhat Is the Energy of a Photon That Has the Is

A Proton Has a Speed of 7 $10^4$ M/sWhat Is the Energy of a Photon That Has the Is