Question
The wave pattern on a stretched string is shown in Interpret what kind of wave this is and find its wavelength.
✓
Answer
The displacement of medium particlles at distance 10, 20, 30, 40, and 50cm are always rest which is the property of nodes in stationary wave.
$\text{AT}\ \text{t}=\frac{\text{T}}{4}$ and $\frac{\text{3T}}{4}$ all particle are at rest wgich is in stationary wave when the particle crossrs its mean position.
so thet praph of wave shos stationaty wave. The wave at $\text{x}=10,\ 20,\ 30,\ 40\text{cm}$ there are nodes and distance between successive nodes is $\frac{\lambda}{2}$$\therefore\frac{\lambda}{2}=(30-20)$ or $\lambda=20\text{cm.}$
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