Question on: WAEC Physics - 1997
In a nuclear reaction, the mass defect is 2 x (10^{-6})g. Calculate the energy released given that the velocity of light is 3 x (10^{8}ms^{-1})
A
9 x \(10^{7}\)J
B
1.8 x \(10^{8}\)J
C
1.8 x \(10^{9}\)J
D
9 x \(10^{-10}\)J
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Correct Option: B
E=(mc^2 = 2\times10^{-6} \times10^{-3}\times(3\times10^{8})^2=1.8\times10^{8})
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