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जब 2.0141 u द्रव्यमान और नगण्य गतिज ऊर्जा का ड्यूट्रॉन 6.0155 u द्रव्यमान के लिथियम नाभिक `""_(3)^(6)"Li"` द्वारा अवशोषित किया जाता है तो संयुक्त नाभिक स्वत: दो अल्फा-कणों में विघटित हो जाता है जिसमें से प्रत्येक का द्रव्यमान 4.00260 u होता है | प्रत्येक अल्फा-कण द्वारा अभिग्रहित ऊर्जा की जूल में गणना कीजिए |
`(1u=1.66xx10^(-27)" kg")`

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Correct Answer - `3.645xx10^(-12)` जूल
`""_(3)^(6)"Li"+""_(1)^(2)"H"to""_(2)^(4)"He"+""_(2)^(4)"He"+Q`
`Delta M=(2.0141+6.0155)-2xx4.0026=0.0244u`
`=.0244xx1.66xx10^(-27)` किग्रा.
अब सूत्र `Q=Delta" M c"^(2)` का उपयोग करें |

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