Question

Consider the following three particles:
1) a free electron with speed v0
2) a free proton with speed v0
3) a free proton with speed 2v0
Rank them according to the wavelengths of their matter waves, least to greatest.
A) 1, 2, 3
B) 3, 2, 1
C) 2, 3, 1
D) 1, 3, 2
E) 1, then 2 and 3 tied

Answer

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