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Mixture of Colours

Interference ...

Question

Interference pattern can be produced by two identical sources. Here the identical sources mean that

A

their size is same

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B

their wavelength is same

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C

the intensity of light emitted by them is same

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D

the emplitudes of light waves emitted by them are same

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Solution

The correct option is C their wavelength is same
For observing interference the term identical source means that their wavelength are the same ( i.e., they are coherent).

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