A harmonic longitudinal wave propagating down a tube filled with a compressible gas has the form s(x, t) = sm cos (kx - $ \omega $t). Its velocity can be obtained from:
A)( $ \omega $/k)
B)k/ $ \omega $
C)k
D)( $ \omega $)
E)( $ \omega $k)

Question

A harmonic longitudinal wave propagating down a tube filled with a compressible gas has the form s(x, t) = sm cos (kx -  $ \omega $t). Its velocity can be obtained from:
A)( $ \omega $/k)
B)k/ $ \omega $
C)k
D)( $ \omega $)
E)( $ \omega $k)

Quizplus · Accepted Answer

The velocity of a harmonic longitudinal wave in a compressible gas is given by v = (ω/k), where ω is the angular frequency and k is the wave number.

A Harmonic Longitudinal Wave Propagating Down a Tube Filled with a Compressible