Q. The equation of a cylindrical progressive wave is
A) $y = a\sin{\omega t}$
B) $y = a\sin(\omega t - kr)$
C) $y = \frac{a}{\sqrt{r}}sin(\omega t - kr\ )$
D) $y = \frac{a}{r}sin(\omega t - kr)$
Explanation
(c) The amplitude of a plane progressive wave=$a$, that of a cylindrical progressive wave is $a/\sqrt{r}.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.