Nuclei Ques 20

20. If in nuclear fusion process the masses of the fusing nuclei be $m_1$ and $m_2$ and the mass of the resultant nucleus be $m_3$, then

[2004]

(a) $m_3>(m_1+m_2)$

(b) $m_3=m_1+m_2$

(c) $m_3=|m_1-m_2|$

(d) $m_3<(m_1+m_2)$

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Answer:

Correct Answer: 20.(d)

Solution:

$m_3 < (m_1 + m_2) ( \because m_1+m_2=m_3+E]$ as $E = [m_1+m_2-m_3] C^2 $