阿摩線上測驗
24. An electron is accelerated by a voltage from rest until the wavelength of its matter wave is λ.What is the accelerating voltage V ?
(A) h2/(2meλ2)；
(B) h2(meλ2)；
(C) h2/(2meλ)；
(D) h(2meλ2)；
(E) None. (h = Planck's constant)
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統計： A(0), B(0), C(2), D(0), E(0) #3188055
統計： A(0), B(0), C(2), D(0), E(0) #3188055
