Which of the following statement(s) is/are co | vedclass

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(A) Statement $(1)$ is correct: The mass defect $\Delta m = [Z m_p + (A-Z) m_n] - M_{nucleus}$ is positive for stable nuclei,meaning the nucleus mass

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$1, 4$

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(A) Statement $(1)$ is correct: The mass defect $\Delta m = [Z m_p + (A-Z) m_n] - M_{nucleus}$ is positive for stable nuclei,meaning the nucleus mass is less than the sum of its nucleons.Statement $(2)$ is incorrect: It contradicts the definition of binding energy and mass defect.Statement $(3)$ is correct: Nuclear fusion is the process where two light nuclei combine to form a heavier,more stable nucleus,releasing energy.Statement $(4)$ is correct: Nuclear fission is the process where a heavy nucleus splits into smaller nuclei,releasing energy.Note: Since options provided are limited,we evaluate the best fit. Given $(1), (3),$ and $(4)$ are scientifically correct,but the provided options only allow for pairs,we identify that $(1)$ and $(4)$ are standard textbook statements regarding mass defect and fission energy.

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