The following table includes data and calculated wave speeds for each of these standing wave movies. You can compare your calculated wave speeds with those values.
| Circular Standing Waves in a Ripple Tank - Wave Velocity Calculations |
| ƒ (Hz) |
N |
λ/D |
λ(m) |
vcalc (m·s-1) |
| 5.33 |
4 |
3 |
0.049 |
0.263 |
| 7.00 |
5 |
4 |
0.037 |
0.259 |
| 8.71 |
6 |
5 |
0.030 |
0.258 |
| 10.25 |
7 |
6 |
0.025 |
0.253 |
| |
|
|
Average Speed: |
0.258 |
N = number of antinodal rings, with central antinode counted as "ring."
D = 0.148 m = inside diameter of metal ring.
λ = D/(N - 1)
vcalc = ƒλ
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