The expression for intensity (as shown in the figure) of transmitted light when a polaroid sheet is rotated between two crossed polaroids is:
[Given: \(I_0\) is the intensity of transmitted light from polariser \(\mathrm{A}\)]
1. | \(I = \dfrac{I_{0}}{2} \sin^{2} 2 \theta\) | 2. | \(I = \dfrac{I_{0}}{4} \sin^{2} 2 \theta\) |
3. | \(I = \dfrac{I_{0}}{2} \cos^{2} 2 \theta\) | 4. | \(I = \dfrac{I_{0}}{4} \cos^{2} 2 \theta\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyUnpolarised light is incident on a plane glass surface. What should be the angle of incidence so that the reflected and refracted rays are perpendicular to each other?
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