The same progressive wave is represented by two graphs I and II. Graph I shows how the displacement `y` varies with the distance x along the wave at a given time. Graph II shows how y varies with time t at a given point on the wave. The ratio of measurements AB to CD, marked on the curves represents:A. wave number kB. wave speed vC. frequency vD. angular frequency `omega`

The same progressive wave is represented by two graphs I and II. Grap

1.	The same progressive wave is represented by two graphs I and II. Graph I shows how the displacement `y` varies with the distance x along the wave at a given time. Graph II shows how y varies with time t at a given point on the wave. The ratio of measurements AB to CD, marked on the curves represents:A. wave number kB. wave speed vC. frequency vD. angular frequency `omega`
Answer» Correct Answer - B `AB=lamda` `CD=T` `(AB)/(CD)=(lamda)/(T)=flamda=v` i.e., wave speed

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