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Saturday, 31 October

JEE Main 2024 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 4 April 2024, Shift 1, Physics Q59

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

Two wavelengths λ1\lambda_1 and λ2\lambda_2 are used in Young's double slit experiment. λ1=450\lambda_1 = 450 nm and λ2=650\lambda_2 = 650 nm. The minimum order of fringe produced by λ2\lambda_2 which overlaps with the fringe produced by λ1\lambda_1 is n. The value of n is ________.

Official answer

9

NTA final key.

Chapter
Wave Optics
Topic
Young's Double Slit
Idea tested
Coinciding Maxima of Two Wavelengths

Same idea in other shifts

Asked 2× in all
  1. 6 Apr 2023, Shift 2 · Q55A beam of light consisting of two wavelengths 7000 Å and 5500 Å is used to obtain interference pattern in Young's double slit experiment.…MediumNumerical 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.