If an electron has a measured wavelength of 1.20 × 10^-10 m, what is its kinetic energy? (h = 6.63 × 10^-34 J×s, 1 eV = 1.6 × 10^-19 J, and me = 9.11 × 10^-31 kg)

a. 209 eV
c. 105 eV
b. 55.0 eV
d. 147 eV


C

Physics & Space Science

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