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Recent questions tagged telegram-61129

(chatquestion)...23. The de-Broglie wavelength of an electron is the same as that of a 50 keV X-ray photon. The ratio of the energy of the photon to the kinetic energy of the electron is (the energy equivalent of electron mass of 0.5 MeV) (a) 1: 50 [WB JEE 2014] (d) 50 : 1 (b) 1 : 20 (c) 20: 1...(Solve this

asked Mar 28, 2020 by balaji.thirumalai

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