Fission of nuclei is possible because the binding energy per nucleon in them (a) increases with mass number at low mass numbers (b) decreases with mass number at low mass numbers (c) increases with mass number at high mass numbers (d) decreases with mass number at high mass numbers.

Answer: (d). For heavy nuclei, BE per nucleon decreases as mass number increases. So splitting a heavy nucleus into two middle-mass nuclei raises BE per nucleon and releases energy. So the answer is (d).

Fission of nuclei is possible because the binding energy per nucleon… | NEET 2005 (AIPMT)

Q32NEET 2005 · AIPMTMedium

Nuclear Fission & Fusion

Fission of nuclei is possible because the binding energy per nucleon in them

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Answer: (d)

For heavy nuclei, BE per nucleon decreases as mass number increases.
So splitting a heavy nucleus into two middle-mass nuclei raises BE per nucleon and releases energy.
So the answer is (d).

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