JEE Main 2003PhysicsWave OpticsHuygens Principle And Interference Of LighteasyMCQ

JEE Main 2003 — Wave Optics Question with Solution

From: AIEEE 2003

Question

To demonstrate the phenomenon of interference, we require two sources which emit radiation

Choose an option

Show full solutionCorrect option: D
Correct answer
Dof the same frequency and having a definite phase relationship

Step-by-step explanation

To observe the phenomenon of interference, you need two sources that emit radiation of the same frequency and have a definite phase relationship. This is because interference is a result of the superposition of waves, which requires the waves to be coherent. Coherence is achieved when the waves have a constant phase difference, which implies that they are of the same frequency and have a definite phase relationship (a phase relationship that does not change with time).

So, the correct answer is :

Option D : of the same frequency and having a definite phase relationship.

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About this question

This is a previous-year question from JEE Main 2003, 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.