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Question

If 1 g of Hydrogen is converted into 0.993 g of Helium in a thermonuclear reaction, then the energy released is


A

83×107 J

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B

63×1010 J

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C

73×1014 J

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D

23×1020 J

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Solution

The correct option is B

63×1010 J


Δm=10.993=0.007 gm
E=Δmc2=0.007×103×(3×108)2=63×1010J


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