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The energy liberated by the annihilation...

The energy liberated by the annihilation of the mass of 1 micro gram is

A

`9 xx 10^(-7)J`

B

`9 xx 10^(7)` J

C

`9 xx 10^(10)`J

D

`9 xx 10^(20)` J

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The correct Answer is:
B
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