24. An electron is accelerated by a voltage from rest until the wavelength of its matter wave is λ.W
問題詳情
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)