Figure shown the shape of part of a long string in which transverse waves are produced by attaching one end of the string to tuning fork of frequency $250 Hz$. What is the velocity of the waves .... $ms^{-1}$ ?
Medium
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Velocity of the wave is given by$;$
$v=\frac{\lambda}{T}$
$T=\frac{1}{f}$
$\boldsymbol{v}=\lambda f$
From the graph, we observe that $\lambda$ is $0.4 c m$
$f$ is given to be $250 \mathrm{Hz}$, converting the wavelength to SI, and multiplying we get $v=1 \mathrm{m} / \mathrm{s}$
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