Q. The equation of a progressive wave is $y = 8\sin\left\lbrack \pi\left( \frac{t}{10} - \frac{x}{4} \right) + \frac{\pi}{3} \right\rbrack.$ The wavelength of the wave is
A) $8\ m$
B) $4\ m$
C) $2\ m$
D) $10\ m$
Explanation
(a) From the given equation $k = \frac{2\pi}{k} =$ Co-efficient of $x = \frac{\pi}{4} \Rightarrow \lambda = 8m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.