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Question

Coherent sources are characterized by the same

[KCET 1993]


A

Phase and phase velocity

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B

Wavelength, amplitude and phase velocity

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C

Wavelength, amplitude and frequency

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D

Wavelength and phase

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Solution

The correct options are
B

Wavelength, amplitude and phase velocity


C

Wavelength, amplitude and frequency


Because in general phase velocity = wave velocity. But in case of complex waves (many waves together) phase velocity may not be equal to wave velocity.


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