1. | the reflected light is polarised with its electric vector parallel to the plane of incidence. |
2. | the reflected light is polarised with its electric vector perpendicular to the plane of incidence. |
3. | \(i = \text{sin}^{-1}\frac{1}{\mu}\) |
4. | \(i = \text{tan}^{-1}\frac{1}{\mu}\) |
Two polaroids \(P_1\) and \(P_2\) are placed with their axis perpendicular to each other. Unpolarised light of intensity \(I_0\) is incident on \(P_1\). A third polaroid \(P_3\) is kept in between \(P_1\) and \(P_2\) such that its axis makes an angle \(45^\circ\) with that of \(P_1\). The intensity of transmitted light through \(P_2\) is:
1. \(\frac{I_0}{4}\)
2. \(\frac{I_0}{8}\)
3. \(\frac{I_0}{16}\)
4. \(\frac{I_0}{2}\)