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Polarization, Brewster's law, Polaroids

6 solved questions

Every question from past board papers on Polarization, Brewster's law, Polaroids, newest paper first. Open any question for its full worked answer.

NEET UG 2025 question paper (official, booklet 45)

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  1. An unpolarized light beam travelling in air is incident on a medium of refractive index 1.73 at Brewster's angle. Then-

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  2. The intensity of transmitted light when a polaroid sheet, placed between two crossed polaroids at \(22.5^\circ\) from the polarization axis of one of the polaroid, is (\(I_0\) is the intensity of polarised light after passing through the first polaroid):

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NEET UG 2024 question paper (official, booklet S6)

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  1. An unpolarised light beam strikes a glass surface at Brewster's angle. Then

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NEET UG 2020 question paper (official, booklet E1)

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  1. The Brewsters angle \(i_b\) for an interface should be :

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NEET UG 2018 question paper (official, booklet EE)

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  1. Unpolarised light is incident from 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 ?

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NEET UG 2017 question paper (official, booklet B)

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  1. Two Polaroids \(P_1\) and \(P_2\) are placed with their axis perpendicular to each other. Unpolarised light \(I_0\) 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 :

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