Consider the wave equation y = 5mm sin [1cm\(^{-1}\)x - 60s\(^{-1}\)t]. The wave number is?
A
0.1 cm\(^{-1}\)
B
10cm\(^{-1}\)
C
1.0cm\(^{-1}\)
D
2cm\(^{-1}\)
Verified Correct Answer: C.
Physical Principles & Numerical Solution
The angular wave number k = \(\frac{2\pi}{\lambda}\) expresses the number of radians in a unit of distance.
Source: WAEC / JAMB / NECO Classroom Archive (Record #64912)