JAMB - Physics (1998 - No. 42)

In a nuclear fusion experiment, the loss of mass amounts to 1.0 x 10-6kg. The amount of energy obtained from the fusion is
3.0 x 10-4J
3.0 x 10-1J
9.0 x 104J
9.0 x 1010J

Explanation

Energy = mc2

= 1 x (3 x 108)2 x 106

= 9 x 1010J

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