Q. A wave is represented by the equation : $y = a\sin{(0.01x - 2t)}$ where $a$ and $x$ are in $cm.$ velocity of propagation of wave is
A) $10\ cm/s$
B) $50\ cm/s$
C) $100\ cm/s$
D) $200\ cm/s$
Explanation
(d) $v = \frac{\omega}{k} = \frac{Co - efficient\ of\ t}{Co - efficient\ of\ x} = \frac{2}{0.01} = 200\ cm/sec$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.