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1g पदार्थ के समतुल्य ऊर्जा को परिकलित कीजिए |

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1g पदार्थ के समतुल्य ऊर्जा को परिकलित कीजिए |
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दिया है - `m=1g=10^(-3)" कि.ग्रा.,"`
`c=3xx10^(8)` मी./से.
सूत्र - `E="mc"^(2)`
`=10^(-3)xx(3xx10^(8))^(2)`
`=9xx10^(-3)xx10^(16)"J"=9xx10^(13)"J"`.
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