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y-x-t Graph

The same prog...

Question

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:

wave number k

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wave speed V

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frequency n

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angular frequency

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Solution

The correct option is B wave speed V
In the first graph i.e., y-x graph, AB represents wavelength and the second graph(y-t), CD represents Time period
$\frac{m e a s u r e A B}{m e a s u r e C D} = \frac{λ}{T} = v$

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