JEE Main 2020PhysicsWave OpticsMediumNumerical

JEE Main 2020 — Wave Optics Question with Solution

JEE Main 2020 (04 Sep Shift 2)

Question

Orange light of wavelength  6000×10–10 m illuminates a single slit of width 0.6×10–4 m. The maximum possible number of diffraction minima produced on both sides of the central maximum is __________

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Show full solutionCorrect answer: 200
Correct answer
200

Step-by-step explanation

Light of wavelength 6000 × 10–10 m passes through a single slit of width 0.6 × 10–4 m. Find height of highest order of minima on both side central maxima

for minima 

dsinθ=nλ

sinθ=nλd<1

n≤dλ

n<0.6×10-46000×10-10

n<100

The total number of maxima of both side at central maxima =100+100=200 

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About this question

This is a previous-year question from JEE Main 2020, 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.