Which of the following represents (a) a progressive wave and (b) a stationary wave? (a) y=2 cos 5x sin 9t,""(b) y=2 sqrt(x-vt), (c) y=3 sin (5x-0.5 t)+4 cos (5x-0.5 t) (d) y= cos x sin t+cos 2x. Sin 2t. If progressive, find its velocity.

Which of the following represents (a) a progressive wave and (b) a sta

1.	Which of the following represents (a) a progressive wave and (b) a stationary wave? (a) y=2 cos 5x sin 9t,""(b) y=2 sqrt(x-vt), (c) y=3 sin (5x-0.5 t)+4 cos (5x-0.5 t) (d) y= cos x sin t+cos 2x. Sin 2t. If progressive, find its velocity.
Answer» Answer :STATIONARY, (B) not a wave, (c) PROGRESSIVE, `v=0.1 m//s`, (d) stationary