Malus' Law (Polarization) — Previous-Year Questions
5 previous-year questions on Malus' Law (Polarization), drawn from JEE Mains, JEE Advanced, NEET UG, and CUET papers. Every question carries a worked-out explanation.
Q1. Unpolarized light of intensity I₀ passes through two polarizers with their axes at 30°. The transmitted intensity is:
JEE 2020Q2. Two polarizers are crossed (90° apart). A third polarizer is inserted between them with its axis at 45° to both. Final intensity (initial unpolarized I₀):
JEE 2019Q3. Light intensity through an analyzer is I₀/4 of the incident. Angle between polarizer and analyzer is:
JEE 2018Q4. Polarized light of intensity I₀ falls on an analyzer; transmitted intensity is found to be I₀/2. The angle is:
JEE 2017Q5. If the angle between the transmission axes of two polarizers is increased from 0° to 60°, the intensity of transmitted light through the pair (for unpolarized incident):
JEE 2022Malus' Law (Polarization) previous-year questions from sciphylab (also known as SciPhy, SciPhy Lab, SciPhy Labs, Physics Lab). Class 12 physics practice for JEE Mains, JEE Advanced, NEET UG, AP Physics 1/2/C, SAT, and CUET-UG candidates.