A ray of light inside region 1 in the xy-plane is incident at the semicircular boundary that carries 8. no free charges. the electric field at the point p in pl

A ray of light inside Region 1 in the xy-plane is incident at the semicircular boundary that carries 8. no free charges. The electric field at the point P in plane polar coordinates is E, =7e, -3@ where e, and e, are the unit vectors. The emerging ray in Region 2 has the electric field E parallel to x-axis. If E, and e, are the dielectric constants of Region-1 and Region-2 respectively, then is 1@-3e a4) Region Region 2