J & K CET Engineering J and K - CET Engineering Solved Paper-2014

  • question_answer Mass of a proton is

    A)  0.00727 amu    

    B)  1.0087 amu

    C)  0.00054 amu     

    D)  1.00727 amu

    Correct Answer: D

    Solution :

     Mass of a electron, proton and neutron are 0.000549 amu, 1.00727 amu and 1.00867 amu


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