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Polarisation for JEE: 31 solved questions

Real JEE 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 2004 to 2026. No sign-in needed to read them.

What this topic asks

• Malus's law and polaroids — 20 questions
• Brewster's law and polarisation by reflection — 11 questions

All 31 questions with solutions

• An unpolarized light of certain intensity passes through a combination of two polarizers whose transmission a… JEE Main 4th April 2nd Shift 2026
• Two polarisers P₁ and P₂ are placed in such a way that the intensity of the transmitted light will be zero. A… JEE Main 4th April 2nd Shift 2025
• When a polaroid sheet is rotated between two crossed polaroids then the transmitted light intensity will be m… JEE Main 27th Jan 2nd Shift 2024
• A beam of unpolarised light of intensity I₀ is passed through a polaroid A and then through another polaroid… JEE Main 30th Jan 2nd Shift 2024 (also JEE Main 2013)
• 'n' polarising sheets are arranged such that each makes an angle 45° with the preceding sheet. An unpolarised… JEE Main 1st Feb 1st Shift 2023
• Two polaroid A and B are placed in such a way that the pass-axis of polaroids are perpendicular to each other… JEE Main 31st Jan 1st Shift 2023
• An unpolarised light beam of intensity 2I₀ is passed through a polaroid P and then through another polaroid Q… JEE Main 29th July 2nd Shift 2022
• A beam of plane polarised light of large cross-sectional area and uniform intensity of 3.3 W m⁻² falls normal… JEE Main 4th Sept 1st Shift 2020
• A polariser - analyser set is adjusted such that the intensity of light coming out of the analyser is just 10… JEE Main 7th Jan 1st Shift 2020
• A system of three polarisers P₁, P₂, P₃ is set up such that the pass axis of P₃ is crossed with respect to th… JEE Main 12th April 2nd Shift 2019
• Unpolarised light of intensity I passes through an ideal polarizer A. Another identical polariser B is placed… JEE Main 2018
• A plane polarised light is incident on a polariser with its pass axis making angle θ with x-axis, as shown in… JEE Main Online 2018
• Unpolarised light of intensity I is incident on a system of two polarizers, A followed by B. The intensity of… JEE Main Online 2018
• Two beams, A and B, of plane polarised light with mutually perpendicular planes of polarisation are seen thro… JEE Main 2014
• Statement I: On viewing the clear blue portion of the sky through a Calcite Crystal, the intensity of transmi… JEE Main 2011 (Re-exam)
• When an unpolarised light of intensity I₀ is incident on a polarizing sheet, the intensity of the light which… JEE Main 2005
• An unpolarized light of intensity I₀ passes through polarizer and then through a certain optically active sol… JEE Main 6th April 1st Shift 2026
• As shown in the figure, three identical polaroids P₁, P₂ and P₃ are placed one after another. The pass axis o… JEE Main 29th Jan 1st Shift 2023
• An unpolarised light beam is incident on the polarizer of a polarisation experiment and the intensity of ligh… JEE Main 24th Aug 1st Shift 2021
• A source of light is placed in front of a screen. Intensity of light on the screen is I. Two polaroids P₁ and… JEE Main 26th Aug 2nd Shift 2021
• An unpolarized light is incident on the plane interface of air-dielectric medium shown in figure. If the inci… JEE Main 4th April 1st Shift 2026
• When an unpolarized light falls at a particular angle on a glass plate (placed in air), it is observed that t… JEE Main 23rd Jan 2nd Shift 2026
• An unpolarised light is incident at an interface of two dielectric media having refractive indices of 2 (inci… JEE Main 24th Jan 1st Shift 2026
• When unpolarised light is incident at an angle of 60° on a transparent medium from air, the reflected ray is… JEE Main 31st Jan 2nd Shift 2024
• Given below are two statements: Statement I: If the Brewster's angle for the light propagating from air to gl… JEE Main 24th Jan 1st Shift 2023
• A light whose electric field vectors are completely removed by using a good polaroid, allowed to incident on… JEE Main 25th June 2nd Shift 2022
• Consider a tank made of glass (refractive index 1.5) with a thick bottom. It is filled with a liquid of refra… JEE Main 9th Jan 1st Shift 2019
• Unpolarised light of intensity I₀ is incident on surface of a block of glass at Brewster's angle. In that cas… JEE Main Online 2015
• A person lives in a high-rise building on the bank of a river 50 m wide. Across the river is a well lit tower… JEE Main Online 2013
• The angle of incidence at which reflected light is totally polarised for reflection from air to glass (refrac… JEE Main 2004
• Unpolarised light is incident on the boundary between two dielectric media, whose dielectric constants are 2.… JEE Main 29th Jan 2nd Shift 2023