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Q17. A particle moves three times as fast as an electron. The ratio of the de Broglie wavelength of the particle to that of the electron is 1.813 x 10-4. The mass of the particle is: (a) 1.67 x 10-27 kg (b) 1.675 x 10-31 kg (c) 1.675 x 10-29 kg (d) 1.675 x 10-30 kg - FirstInTest | FirstInTest