SATHEE: Nuclei - Result Question 15

Nuclei - Result Question 15

17. The mass density of a nucleus varies with mass number $A$ as

(a) $A^{2}$

(b) $A$

(d) $1 / A$

[1992]

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Answer:

Correct Answer: 17. (c)

Solution:

$r \propto A^{1 / 3}$ or $A \propto r^{3}$

density $= \frac{mass}{volume}$

Further, mass $\propto A$ and volume $\propto r^{3}$

$∴ \frac{mass}{volume} =$ constant

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Nuclei - Result Question 15

17. The mass density of a nucleus varies with mass number A as

Answer:

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17. The mass density of a nucleus varies with mass number $A$ as