To demonstrate the phenomenon of interference | vedclass

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(A) For the phenomenon of interference to be observed,the two sources of light must be coherent.Coherent sources are defined as sources that emit radi

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Of the same frequency and having a definite phase relationship

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(A) For the phenomenon of interference to be observed,the two sources of light must be coherent.Coherent sources are defined as sources that emit radiation of the same frequency and maintain a constant phase difference over time.If the phase difference changes randomly,the interference pattern will not be stable and will not be observable.Therefore,the correct requirement is that the sources must have the same frequency and a definite (constant) phase relationship.

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

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