1. Tardigrade
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  4. 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 A B to C D, marked on the curves, represents:

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Q. 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 $A B$ to $C D$, marked on the curves, represents:Physics Question Image

Waves

Solution:

$A B=\lambda$
$C D=T$
$\frac{A B}{C D}=\frac{\lambda}{T}=f \lambda=v$ i.e., wave speed.