JEE Physics
Diffraction & Polarisation: JEE Questions & Solutions
16 previous-year JEE Physics questions on Diffraction & Polarisation, each with a worked step-by-step solution.
Previous-year questions
- 01Which of the following are true for a single slit diffraction? A. Width of central maxima increases with increase in wavelength keeping…MCQMediumJEE 2026
- 02When an unpolarized light falls at a particular angle on a glass plate (placed in air), it is observed that the reflected beam is linearly…MCQEasyJEE 2026
- 03An unpolarised light is incident at an interface of two dielectric media having refractive indices of 2 (incident medium) and 2√3…MCQEasyJEE 2026
- 04A transparent film of refractive index 2.0 is coated on a glass slab of refractive index 1.45. What is the minimum thickness of transparent…MCQEasyJEE 2025
- 05In a Young's double slit experiment, three polarizers are kept as shown in the figure. The transmission axes of P₁ and P₂ are orthogonal to…MCQMediumJEE 2025
- 06If the measured angular separation between the second minimum to the left of the central maximum and the third minimum to the right of the…NVAMediumJEE 2025
- 07Two polarisers P₁ and P₂ are placed in such a way that the intensity of the transmitted light will be zero. A third polariser P₃ is…MCQMediumJEE 2025
- 08A parallel beam of monochromatic light of wavelength 5000 Å is incident normally on a single narrow slit of width 0.001 mm. The light is…NVAEasyJEE 2024
- 09In a single slit diffraction pattern, a light of wavelength 6000 Å is used. The distance between the first and third minima in the…NVAMediumJEE 2024
- 10The diffraction pattern of light of wavelength 400 nm diffracting from a slit of width 0.2 mm is focused on the focal plane of a convex…MCQEasyJEE 2024
- 11A beam of unpolarized light of intensity I₀ is passed through a polaroid A and then through another polaroid B which is oriented so that…MCQEasyJEE 2024
- 12Three identical polaroids P₁, P₂, and P₃ are placed one after another. The pass axis of P₂ and P₃ are inclined at angles of 60^° and 90^°…NVAEasyJEE 2023
- 13Two polaroide A and B are placed in such a way that the pass-axis of polaroids are perpendicular to each other. Now, another polaroid C is…MCQEasyJEE 2023
- 14‘n’ polarizing sheets are arranged such that each makes an angle 45^° with the preceding sheet. An unpolarized light of intensity I is…MCQEasyJEE 2023
- 15Unpolarised light of intensity 32 Wm⁻² passes through the combination of three polaroids such that the pass axis of the last polaroid is…NVAMediumJEE 2023
- 16A single slit of width a is illuminated by a monochromatic light of wavelength 600 nm. The value of a for which the first minimum appears…MCQEasyJEE 2023
Frequently asked questions
Our bank has 16 previous-year JEE Physics questions tagged to Diffraction & Polarisation, drawn from JEE papers between 2023 and 2026, including 3 from 2026 alone. Each comes with a full step-by-step solution.
Diffraction & Polarisation is rated Advanced overall for JEE Physics. The PYQs on this page break down as 10 easy, 6 medium.
Of the 16 previous-year questions on Diffraction & Polarisation, 11 are multiple-choice (MCQ) and 5 are numerical-value (NVA) questions.
Based on recent paper analysis, Diffraction & Polarisation is worth about 1 mark in JEE Main. It sits in Optics, a Class 12 Physics chapter.
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