Consider the wave equation y = 5mm sin [1cm\(^{-1}\)x – 60s\(^{-1}\)t]. The wave number is?
- 0.1 cm\(^{-1}\)
- 10cm\(^{-1}\)
-
1.0cm\(^{-1}\)
- 2cm\(^{-1}\)
The correct answer is: C
Explanation
The angular wave number k = \(\frac{2π}{λ}\) expresses the number of radians in a unit of distance.
There is an explanation video available .