JEE Main 2022PhysicsWave OpticsMediumMCQ

JEE Main 2022 — Wave Optics Question with Solution

JEE Main 2022 (25 Jun Shift 2)

Question

The interference pattern is obtained with two coherent light sources of intensity ratio 4:1. And the ratio Imax+IminImax-Imin is 5x. Then, the value of x will be equal to :

Choose an option

Show full solutionCorrect option: B
Correct answer
B4

Step-by-step explanation

The ratio of the intensities is I1I2=41  

After taking square root of above equation on both sides, we get, I1I2=21

Apply componendo and dividendo,
⇒I1+I2I1-I2=2+12-1=31
⇒I1+I2I1-I22=ImaxImin=91⇒Imax+IminImax-Imin=108=54

Therefore, the answer is 4.

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About this question

This is a previous-year question from JEE Main 2022, covering the Wave Optics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.