A travelling wave of amplitude 0.80 m has a frequency of ...
A travelling wave of amplitude 0.80 m has a frequency of 16 Hz and a wave speed of 20 ms−1
Calculate the wave number of the wave.
3
42
5
2
Correct answer is C
A=0.8m; f=16Hz; v=20 ms−1; k=?
v = fλ
λ =1.25m
= k= \frac{2π}{λ} =\frac{2 × 3.142}{1.25}
k= 5m ( to 1 s.f)
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