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Question

Question: The energy in MeV is released due to transformation of 1 kg mass completely into energy (c = 3 × 10<...

The energy in MeV is released due to transformation of 1 kg mass completely into energy (c = 3 × 108m/s)-

A

7.625 × 10 MeV

B

10.5 × 1029 MeV

C

2.8 × 10–28 MeV

D

5.625 × 1029 MeV

Answer

5.625 × 1029 MeV

Explanation

Solution

E = mc2 = (1) (3 × 108)2

E = 9 × 1016 J = 9×10161.6×1013MeV\frac { 9 \times 10 ^ { 16 } } { 1.6 \times 10 ^ { - 13 } } \mathrm { MeV }

= 91.6×1029MeV\frac { 9 } { 1.6 } \times 10 ^ { 29 } \mathrm { MeV }

= 5.625 × 1029 MeV