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JIPMER2004PhysicsNuclear Physics

The energy in MeV is released due to transformation of 1 kg mass completely into energy, is (c=3 10^8 ~m / s )

Options

  1. A7.625 10 MeV
  2. B10.5 10²⁹ MeV
  3. C2.8 10⁻²⁸ MeV
  4. D5.625 10²⁹ MeV

Correct answer

D. 5.625 10²⁹ MeV

Step-by-step solution

According to Einstein's mass energy equivalence E=m c^2=1 (3 10^8 )^2=9 10¹⁶ ~J aligned & = 9 10¹⁶ 1.6 10⁻¹³ MeV & (since 1 MeV =1.6 10⁻¹³ ~J ) aligned =5.625 10²⁹ MeV

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