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Isotopes

P and Q are i...

Question

$P$ and $Q$ are isobars, $Q$ and $R$ are isotopes. If $d_{P}, d_{Q} and d_{R}$ be the densities of nuclei $P, Q and R$ respectively, then

A

d_{P} < d_{Q} < d_{R}

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B

d_{P} > d_{Q} > d_{R}

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C

d_{P} = d_{Q} = d_{R}

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D

d_{P} < d_{Q} = d_{R}

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Solution

The correct option is C $d_{P} = d_{Q} = d_{R}$
The density of the nucleus is independent of mass number. It is same for all type of nucleus.

Hence, option $(C)$ is correct.

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