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(B) The packing fraction $(f)$ is defined as the mass defect per nucleon,given by $f = \frac{m - A}{A}$,where $m$ is the mass of the nucleus and $A$ i

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Packing fraction may be positive or may be negative

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(B) The packing fraction $(f)$ is defined as the mass defect per nucleon,given by $f = \frac{m - A}{A}$,where $m$ is the mass of the nucleus and $A$ is the mass number.Packing fraction is a measure of the stability of a nucleus.$A$ smaller (or more negative) value of the packing fraction indicates higher stability of the nucleus.The packing fraction can be positive,negative,or zero depending on the mass number of the nucleus.Therefore,the statement that the packing fraction may be positive or negative is correct.

Pick out the correct statement from the following.

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