Unpolarised light is incident from air on a plane surface of a material of refractive index 'μ'. At a particular angle of incidence 'i', it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation ?
(1) Reflected light is polarised with its electric vector parallel to the plane of incidence
(2) Reflected light is polarised with its electric vector perpendicular to the plane of incidence
(3) i = sin-1(1/μ)
(4) i = tan-1(1/μ)
