\(\therefore \mathrm{v}=256 \times 101.6 \mathrm{cm} / \mathrm{s}\)
\(\mathrm{n}_{2}=\frac{\mathrm{v}}{4 \ell_{2}}=\frac{256 \times 101.6}{4 \times 25.6}=254 \mathrm{Hz}\)
No. of \(beats/sec\) \(=\mathrm{n}_{1}-\mathrm{n}_{2}=256-254=2\)
$(a)$ $\left(x^2-v t\right)^2$
$(b)$ $\log \left[\frac{(x+v t)}{x_0}\right]$
$(c)$ $e^{\left\{-\frac{(x+v t)}{x_0}\right\}^2}$
$(d)$ $\frac{1}{x+v t}$