A wave is described by y(x,t)= 0.1 sin(3x + 10t), where x is in meters, y is in centimeters and t is in seconds.The angular wave number is:
A)0.10 rad/m
B)3 $\pi$ rad/m
C)10 rad/m
D)10 $\pi$ rad/m
E)3.0 rad/m

Question

A wave is described by y(x,t)= 0.1 sin(3x + 10t), where x is in meters, y is in centimeters and t is in seconds.The angular wave number is:
A)0.10 rad/m
B)3 $\pi$  rad/m
C)10 rad/m
D)10  $\pi$  rad/m
E)3.0 rad/m

Quizplus · Accepted Answer

The angular wave number $k$ is given by the coefficient of $x$ in the wave equation $y(x,t) = 0.1 \sin(3x + 10t)$, which is $3 \, \text{rad/m}$.

A Wave Is Described by Y(x,t)= 0 π\piπ Rad/m C)10 Rad/m D)10

A Wave Is Described by Y(x,t)= 0 $\pi$ Rad/m
C)10 Rad/m
D)10