If infinite parallel plane sheet of a metal is charged to charge density `sigma` coulomb per square metre in a medium of dielectric constant K. Intensity of electric field near the metallic surface will be

Options

A. `E=(sigma)/(epsilon_(0)K)`
B. `E=K/(2epsilon_(0))`
C. `E=(sigma)/(2epsilon_(0)K)`
D. `E=(Ksigma)/(2 epsilon_(0))`

Answer

C

Explanation

`E=(sigma)/(2 epsilon)=(sigma)/(2 epsilon_(0)K)`