We’re being asked to determine the de Broglie wavelength of an electron corresponding to the greatest speed.
Recall that the de Broglie wavelength (λ) can be calculated using:
h = Planck's constant (6.626 × 10–34 kg • m2/s)
m = mass (in kg)
v = velocity (in m/s)
The deBroglie wavelengths of a moving electron are given. Which wavelength would correspond to the greatest speed of the moving electron?
a. 8.25 x 10 9 m
b. 1.35 x 10 -13 m
c. 8.25 x 10 12 m
d. 1.21 x 10 -6 m
e. 1.21 x 10 -10 m
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