1.

A nuclear af rest undergoes a decay emitting and alpha- particle of de-Broglie wavelength lamda=5.76xx10^(-15) meter. he mass of the daughter nucleus is 223.610 amu and that of the alpha- particle is 4.002 a.m.u. (1"amu"=931.470(MeV)/(C^(2))) Mass of the nucleus is

Answer»

227.605 amu
227.605 kg
227.605 MG
2.27 kg

Answer :A


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