JEE Main 2024PhysicsWave OpticsMediumNumerical

JEE Main 2024 — Wave Optics Question with Solution

JEE Main 2024 (27 Jan Shift 2)

Question

A parallel beam of monochromatic light of wavelength 5000 Ao is incident normally on a single narrow slit of width 0.001 mm. The light is focused by convex lens on screen, placed on its focal plane. The first minima will be formed for the angle of diffraction of ______ (degree).

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Show full solutionCorrect answer: 30
Correct answer
30

Step-by-step explanation

The condition for the first minima in the single slit diffraction experiment can be written as

asinθ=λ   ...1

Equation (1) implies that

sinθ=λa=5000×10-101×10-6=12

⇒θ=30°

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About this question

This is a previous-year question from JEE Main 2024, 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.