Let `sigma` be the uniform surface charge density of two infinite thin plane sheets shown in figure.Then the electric fields in three different region `E_(I)`.E_(II) and E_(III) are
:

Options

A. `vec E_(I)=0.vec E_(II)=sigma/in_(0)hatn,vec E_(III)=0,
B. `vec E_(I)=(2sigma)/in_(0)hatn,vec E_(III)=0, vecE_(III)(2sigma)/in_0hatn`
C. `vec E_(I)=-(sigma)/in_(0)hatn,vec E_(II)=0, vecE_(III)(sigma)/in_0hatn`
D. `vec E_(I)=-(sigma)/(2in_(0))hatn,vec E_(II)=0, vecE_(III)(sigma)/(2in_0)hatn`

Answer

C