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Question

If in a nuclear fusion process, the masses of the fusion nuclei be m1 and m2 and the mass of the resultant nucleus be m3, then


A

m3=m1+m2

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B

m3=m1-m2

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C

m3<m1+m2

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D

m3>m1+m2

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Solution

The correct option is C

m3<m1+m2


Step 1: Given Data:

Masses of two light nuclei are m1 and m2.

Mass of the heavier nucleus produced in the fusion is m3.

Step 2: Nuclear fusion:

  1. In nuclear fusion, two lighter nuclei combine together to produce a heavier nucleus. The process is exoergic, i.e., net energy gets released in the process.
  2. The mass of the heavier nucleus is less than the sum of the mass of the two light nuclei. This mass converts into energy which is released in the fusion process.
  3. Therefore, m3<m1+m2

Hence, the correct option is (C).


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