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1 markPaper 1 · Multiple choiceAtomic Mass

CAPE Physics Unit 2 · 2012 · Paper 1 · Question Q41

When a radioactive nucleus decays an amount of energy, E, is released. At the same time, a small amount of mass, m, is lost. Which of the following gives the amount of energy released?

  1. (A)E = \frac{1}{2}mc
  2. (B)E = \frac{1}{2}mc^2
  3. (C)E = mc
  4. (D)E = mc^2

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