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Question: البوابة التعليمية الالكترونية لجامع If an electron moves with speed 5 x 106 m/sec, then the de Brogli wave length of the electron is (melectron = 9.1 x 10-31 kg and h=6.6 x 10-34 m2 kg / sec) Select one: a. 0.75 A b.1.45 A C. 6.89 A d. 7.2 A i'm in the exam now please quickly
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