Unpolarised light is incident from the air on a plane surface of a material of refractive index \(\mu\). 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. 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. \(i = \text{tan}^{-1}\frac{1}{\mu}\)
Subtopic:  Polarization of Light |
 60%
From NCERT
NEET - 2018
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NEET 2023 - Target Batch - Aryan Raj Singh
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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. \(\frac{I_0}{2}\)

Subtopic:  Polarization of Light |
 66%
From NCERT
NEET - 2017
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh