JEE Main 2024 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 1 February 2024, Shift 2, Physics Q59

Question 59 of 90 in this shift, Physics question 29 of 30, Section B.

In Young's double slit experiment, monochromatic light of wavelength 5000 Å is used. The slits are 1.0 mm apart and screen is placed at 1.0 m away from slits. The distance from the centre of the screen where intensity becomes half of the maximum intensity for the first time is ________

\times10^{-6}

Official answer

125

NTA final key.

Chapter: Wave Optics
Topic: Young's Double Slit
Idea tested: Resultant Intensity Formula

Same idea in other shifts

Asked 13× in all

3 Apr 2025, Shift 1 · Q50Two coherent monochromatic light beams of intensities 4I and 9I are superimposed. The difference between the maximum and minimum…EasyNumerical value
7 Apr 2025, Shift 1 · Q41Two plane polarized light waves combine at a certain point whose electric field components are $E_1 = E_0 \sin\omega t$ …EasySingle correct
6 Apr 2024, Shift 2 · Q54Two coherent monochromatic light beams of intensities $I$ and $4I$ are superimposed. The difference between maximum and minimum possible…EasyNumerical value
31 Jan 2024, Shift 1 · Q59Two waves of intensity ratio 1:9 cross each other at a point. The resultant intensities at that point, when (a) Waves are incoherent is…MediumNumerical value
10 Apr 2023, Shift 2 · Q47The ratio of intensities at two points P and Q on the screen in a Young's double slit experiment where phase difference between two waves…EasySingle correct
13 Apr 2023, Shift 2 · Q46In a Young's double slits experiment, the ratio of amplitude of light coming from slits is 2:1. The ratio of the maximum to minimum…EasySingle correct
27 Jul 2022, Shift 1 · Q53Two beams of light having intensities I and 4I interfere to produce a fringe pattern on a screen. The phase difference between the two…EasyNumerical value
27 Jul 2022, Shift 2 · Q46Two coherent sources of light interfere. The intensity ratio of two sources is 1 : 4. For this interference pattern if the value of…MediumSingle correct

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.