A beam of unpolarised light in a medium with dielectric constant &, is reflected from a plane interface formed with another medium of dielectric =36. The two media have identical magnetic permeability. If angle of incidence is Oi = 60, then the reflected light: as is Plane polarised Lar to plane of incidente by is plane Polasized 11 to plane of incidence c> is circularly polarised dy has the same polarization as the incident light