The boundary conditions at the interface between two dielectrics in an electric field-are given by

(a) Dnormal = 0,       Enormal  =  0
(b) Dtangantial = 0,   Eangential =  O
(c) Dtangantial = 0,   Enormal = 0
(d) Dnormal   =  0,    Etangential = 0

Ans: D