Size of nucleus is of order of

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13.Nuclei

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Size of nucleus is of the order of

A

${10^{ - 10}}m$

B

${10^{ - 15}}m$

C

${10^{ - 12}}m$

D

${10^{ - 19}}m$

Solution

(b) Size of nucleus, $R=R_{o} A^{1 / 3}$

where $R_{o}=1.5 \mathrm{fm}=1.5 \times 10^{-15} \mathrm{m}$

and $A$ is the mass no.

$A^{1 / 3}$ is of order $1$

hence $R$ is of order $10^{-15} \mathrm{m}$

Standard 12

Physics

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