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Jawapan 2

(a) Jisim zarah sebelum reputan = 226.0254 u.j.a.

     Jumlah jisim selepas reputan

     =(222.0175+4.0026)u.j.a.

     =226.0201 u.j.a.

(b) Cacat jisim = Perbezaan jisim sebelum dan selepas      reputan

     m = 226.0254-226.0201

         =0.0053 u.j.a.

         =0.0053 X 1.66 X 10-27 kg

         =8.798 X 10-30 kg

(c) Tenaga yang dibebaskan, E=mc2

     E = 8.798 X 10-30 X (3.00 X 108)2J

         = 7.92 X 10-13J