Polarized light incident on a polaroid. Let \(I_{0}\)
1. \(0\)
2. \(\dfrac{I_{0}}{2}\)
3. \(I_{0}\)
4. \(\dfrac{I_{0}}{N}\)
| 1. | \(\large\frac{I_0}{\cos ^2 \theta}\) | 2. | \(\large\frac{I_0}{2\cos ^2 \theta}\) |
| 3. | \(\large\frac{2I_0}{\cos ^2 \theta}\) | 4. | \({\large{I_0\over 2}} \cos^2\theta\) |