A) \[\frac{{{x}^{2}}}{2R}\]
B) \[\frac{r}{R}V\]
C) \[\frac{{{r}^{2}}}{{{R}^{2}}}\]
D) \[\frac{{{R}^{2}}}{{{r}^{2}}}V\]
Correct Answer: D
Solution :
\[R={{n}^{1/3}}r\] \[q=4p{{\varepsilon }_{0}}rV\] \[Q=n.4p{{\varepsilon }_{0}}rV\] \[\therefore \] \[V'=\frac{n.\,4\pi {{\varepsilon }_{0}}rV}{4\pi {{\varepsilon }_{0}}{{n}^{1/3}}r}={{n}^{2/3}}V=\frac{{{R}^{2}}}{{{r}^{2}}}V\]You need to login to perform this action.
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