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Polarisation for GSEB: 14 solved questions

Real GSEB paper questions on polarisation, part of wave optics. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2015 to 2023. No sign-in needed to read them.

What this topic asks

• Brewster's law and polarisation by reflection — 9 questions
• Malus's law and polaroids — 5 questions

All 14 questions with solutions

• Ordinary light is incident on a glass slab at the polarising angle and suffers a deviation of 22° on refracti… GSEB Board July 2015
• A Nicol prism is made up of two crystals. GSEB Board March 2016
• For a transparent medium the angle of polarisation is 60°. The refractive index of this medium is GSEB Board March 2016
• A person finds that the Sun's rays reflected by the still water of a lake are polarised. If the refractive in… GSEB Board July 2017
• Unpolarised light is incident on a plane glass surface. What should be the angle of incidence so that the ref… GSEB Board March 2020
• When unpolarised light passes through a polariser, the intensity of the transmitted light will be of the inci… GSEB Board March 2020 (old course)
• Unpolarised light is incident on a plane glass surface. What should the angle of incidence be so that the ref… GSEB Board August 2020
• From phenomenon of optics, one can say that light rays are transverse. GSEB Board August 2020
• Unpolarised light is incident on a plane glass surface. For which angle of incidence are the reflected and th… GSEB Board March 2022
• Which one of the following figures represents polarisation in the plane of the paper? (In each panel the ray… GSEB Board July 2022
• What is the Brewster angle for an air-to-glass transmission? [Refractive index of glass = 1.5] GSEB Board July 2022
• The intensity of unpolarised light incident on a polaroid is I₁ and the intensity of the polarised light emer… GSEB Board March 2023
• Unpolarised light is incident on a plane transparent surface. The reflected and the refracted rays are found… GSEB Board March 2023
• When unpolarised light is incident on a plane glass surface and the reflected ray is found to be plane polari… GSEB Board July 2023