A) \[5\]fermi
B) \[6\]Fermi
C) \[11.16\] fermi
D) \[8\] Fermi
Correct Answer: C
Solution :
We have,\[r\propto {{A}^{1/3}}\] \[\Rightarrow \] \[\frac{{{r}_{2}}}{{{r}_{1}}}={{\left[ \frac{{{A}_{2}}}{{{A}_{1}}} \right]}^{1/3}}\] \[\Rightarrow \] \[\frac{{{r}_{2}}}{{{r}_{1}}}={{\left[ \frac{{{A}_{2}}}{{{A}_{1}}} \right]}^{1/3}}\] \[={{\left[ \frac{206}{4} \right]}^{1/3}}\] \[\therefore \] \[{{r}_{2}}=3{{\left[ \frac{206}{4} \right]}^{1/3}}=11.16\,\,fermi\]
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