JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 30 July 2022, Shift 2, Physics Q14

Question 14 of 90 in this shift, Physics question 14 of 30, Section A.

Two poloroids P

_1

and P

_2

are placed parallel to each other with common axis.The light of intensity I

_0

passes through a polaroid sheet P

_1

and then passes through polaroid P

_2

. If P

_2

is now rotated by 60°, then the intensity of the output light from P

_2

will be:

(1) $\frac{I_0}{2}$
(2) $\frac{I_0}{4}$
(3)Zero
(4) $\frac{I_0}{8}$ Official answer

Official answer

Option 4

NTA final key.

Chapter: Wave Optics
Topic: Polarization
Idea tested: Malus's Law Calculation

Same idea in other shifts

Asked 7× in all

4 Apr 2026, Shift 2 · Q42An unpolarized light of certain intensity passes through a combination of two polarizers whose transmission axes are at $30^\circ$ and…MediumSingle correct
6 Apr 2026, Shift 1 · Q47An unpolarized light of intensity $I_0$ passes through polarizer and then through a certain optically active solution and finally it goes…MediumNumerical value
30 Jan 2024, Shift 2 · Q45A beam of unpolarised light of intensity $I_o$ is passed through a polaroid $A$ and then through another polaroid $B$ which is oriented so…EasySingle correct
10 Apr 2023, Shift 1 · Q57Unpolarised light of intensity $32\,Wm^{-2}$ passes through the combination of three polaroids such that the pass axis of the last…MediumNumerical value
29 Jul 2022, Shift 2 · Q39An unpolarised light beam of intensity $2I_0$ is passed through a polaroid P and then through another polaroid Q which is oriented in such…EasySingle correct
24 Feb 2021, Shift 1 · Q22An unpolarized light beam is incident on the polarizer of a polarization experiment and the intensity of light beam emerging from the…EasyNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.