nuclear reaction

In a nuclear reaction 2.70 x 10-12 J of energy is released. What is the mass lost?
Dalam satu tindak balas nucleus, tenaga 2.70 x 10-12 J dibebaskan. Berapakah jisim yang hilang?

A     9.0 x 10-12 kg
B     9.0 x 10-18 kg
C     3.0 x 10-11  kg
D     3.0 x 10-29 kg












Answer : D

E = mc2

2.70 x 102 = m(3 x 105)2
m= 2.70x102 = 3.0 x10-29 kg
                                          (3x105)2