1. | the refracted light will be completely polarised. |
2. | both the reflected and refracted light will be completely polarised. |
3. | the reflected light will be completely polarised but the refracted light will be partially polarised. |
4. | the reflected light will be partially polarised. |
1. | \(\dfrac{{I}_0}{16}\) | 2. | \(\dfrac{{I}_0}4\) |
3. | \(\dfrac{{I}_0}2\) | 4. | \(\dfrac{{I}_0}{32}\) |
The Brewster's angle for an interface should be:
1. \(30^{\circ}<i_b<45^{\circ}\)
2. \(45^{\circ}<i_b<90^{\circ}\)
3. \(i_b=90^{\circ}\)
4. \(0^{\circ}<i_b<30^{\circ}\)
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. \(\frac{I_0}{2}\)