A) \[4\]
B) \[2\]
C) \[3\]
D) \[1.6\]
Correct Answer: D
Solution :
Radii of nucleus, \[r=R{{(A)}^{1/3}}\] \[\Rightarrow \] \[\frac{{{r}_{He}}}{{{r}_{H}}}={{\left( \frac{{{A}_{He}}}{{{A}_{H}}} \right)}^{1/3}}\] where, A = atomic mass \[\frac{{{r}_{He}}}{{{r}_{H}}}={{\left( \frac{4}{1} \right)}^{1/3}}={{(4)}^{1/3}}=1.6\]You need to login to perform this action.
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