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The Effect of Path Difference

To demonstrat...

Question

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

A

Nearly the same frequency

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B

The same frequency

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C

Different wavelengths

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D

The same frequency and having a definite phase relationship

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Solution

The correct option is D The same frequency and having a definite phase relationship
As for an Interference, Two Sources must be Coherent, hence the two sources must have the same frequency and a definite phase relationship.

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The Effect of Path Difference

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