Q. The equation of the propagating wave is $y = 25\sin{(20t + 5x),}$ where $y$ is displacement. Which of the following statements is not true
A) The amplitude of the wave is 25 units
B) The wave is propagating in positive $x$-direction
C) The velocity of the wave is 4 units
D) The maximum velocity of the particles is 500 units
Explanation
(b) Positive sign in the argument of sin indicating that wave is travelling in negative $x$-direction
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.