Question

Among the following equations, which one of the following equations represents the spherical progressive wave?

• A. $y=asin \omega t$
• B. $y=asin \left(\omega t-kx\right)$
• C. $y=\frac{a}{\sqrt{r}} sin \left(\omega t-kx\right)$
• D. $y=\frac{a}{r} sin \left(\omega t-kx\right)$

Answer 1

Answer: (D)

The amplitude of a spherical progressive wave is $\frac{a}{r}$
Among the given equations, $y=\frac{a}{r} sin\left(\omega t-kx\right)$
represents the spherical progressive wave.