2.1. Find the de Broglie wavelength of the following particles: (i) an electron in a semiconductor having average thermal velocity at T = 300 K and an effective mass of me = amo, where a is a constant, (ii) a helium atom having thermal energy at T = 300 K, (iii) an a-particle (He4 nucleus) of kinetic energy 10 MeV.
2.1. Find the de Broglie wavelength of the following particles: (i) an electron in a semiconductor having average thermal velocity at T = 300 K and an effective mass of me = amo, where a is a constant, (ii) a helium atom having thermal energy at T = 300 K, (iii) an a-particle (He4 nucleus) of kinetic energy 10 MeV.
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Transcribed Image Text:2.1. Find the de Broglie wavelength of the following
particles:
(i) an electron in a semiconductor having average thermal
velocity at T = 300 K and an effective mass of me = amo,
where a is a constant,
(ii) a helium atom having thermal energy at T = 300 K,
(iii) an a-particle (He4 nucleus) of kinetic energy 10 MeV.
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