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14.8: Summary
https://phys.libretexts.org/Courses/Berea_College/Introductory_Physics%3A_Berea_College/14%3A_Waves/14.08%3A_Summary
The amplitude of a spherical wave will decrease as the distance away from the source increases: $\begin{aligned} A =\frac{1}{r}\sqrt{\frac{P}{2\pi\rho \omega^2 v}}\end{aligned}$ The intensity of a s...The amplitude of a spherical wave will decrease as the distance away from the source increases: $\begin{aligned} A =\frac{1}{r}\sqrt{\frac{P}{2\pi\rho \omega^2 v}}\end{aligned}$ The intensity of a spherical wave is defined as the power per unit area transferred by the wave, and is given by: $\begin{aligned} I=\frac{P}{4\pi r^2}=\frac{1}{2}\rho\omega^2A^2v\end{aligned}$ The superposition principle states that if $D_1(x,t)$ , $D_2(x,t)$ , $\dots$ , are functions that satisfy the wave equat…

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