What is the energy of a photon that has a wavelength equal to the de Broglie wavelength of a proton having a speed of 7.1 × m/s? (mproton = 1.67 × 10-27 kg, c = 3.00 × 108 m/s)
A) 220 keV
B) 150 keV
C) 290 keV
D) 360 keV
E) 440 keV
Correct Answer:
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