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 o in

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 o in plane polar coordinates is E, = 7ê, -3e 4 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, then2 is Pr,z 4) O Region Region2 (6-%