JEE Main 2024PhysicsWave OpticsEasyMCQ

JEE Main 2024 — Wave Optics Question with Solution

JEE Main 2024 (01 Feb Shift 2)

Question

A microwave of wavelength 2.0 cm falls normally on a slit of width 4.0 cm. The angular spread of the central maxima of the diffraction pattern obtained on a screen 1.5 m away from the slit, will be:

Choose an option

Show full solutionCorrect option: C
Correct answer
C60º

Step-by-step explanation

In diffraction, for first minima a sinθ=λ

⇒sinθ=λa=12

⇒θ=30°

Therefore, angular spread of central maxima will be =2θ=60º.

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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.