The polarization P of a dielectric material positioned within a

The polarization P of a dielectric material positioned within a

The polarization P of a dielectric material positioned within a parallel-plate capacitor is to be 1.0 ( 10-6 C/m2.
(a) What must be the dielectric constant if an electric field of 5 ( 104 V/m is applied?
(b) What will be the dielectric displacement D?