A soap bubble (surface tension =\[T\]) is charged to a maximum surface density of charge =\[\sigma \]. When it is just going to burst? Its radius R is given by

\[R=\frac{{{\sigma }^{{}}}}{\sqrt{8{{\varepsilon }_{0}}T}}\]

\[R=\frac{{{\sigma }^{2}}}{8{{\varepsilon }_{0}}T}\]

\[R=8{{\varepsilon }_{0}}\frac{T}{{{\sigma }^{2}}}\]

\[R=\frac{{{\sqrt{8{{\varepsilon }_{0}}T}}^{{}}}}{\sigma }\]

A soap bubble (surface tension =\[T\]) is charged to a maximum surface

1.	A soap bubble (surface tension =\[T\]) is charged to a maximum surface density of charge =\[\sigma \]. When it is just going to burst? Its radius R is given by
A.	\[R=\frac{{{\sigma }^{2}}}{8{{\varepsilon }_{0}}T}\]
B.	\[R=8{{\varepsilon }_{0}}\frac{T}{{{\sigma }^{2}}}\]
C.	\[R=\frac{{{\sigma }^{{}}}}{\sqrt{8{{\varepsilon }_{0}}T}}\]
D.	\[R=\frac{{{\sqrt{8{{\varepsilon }_{0}}T}}^{{}}}}{\sigma }\]
Answer» C. \[R=\frac{{{\sigma }^{{}}}}{\sqrt{8{{\varepsilon }_{0}}T}}\]