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:

Options

A. wave number `k`
B. wave speed `V`.
C. frequency `v`.
D. angular frequency `omega`.

Answer

B

Explanation

`("measure"AB)/("measure"CD) = (lambda)/(mu) = V`