Figure shows four Gaussian surfaces consisting of identical cylindrical midsections but different end caps. The surfaces central axis of each . Cylindrical midsection , the end caps have these shapes, `S_(1)` convex hemispheres `S_(2)` concave hemisphere `S_(3)` cones `S_(4)`e flat disks. rank the surfaces according to (a) the net electric flux through them and (b) the electric flux through the top end caps , greatest first.

Options

A. net flux through all the four Gaussian surface will be equal
B. the electric flux though the top end cops will be equal
C. the electric flux through the top end cap `S_(1)` is greatest
D. the electric flux through the top end cop `S_(3)` is greatest

Answer

a,b