3 diameters · 1 circle
Three diameters and one circle. Chladni’s law scores it (3 + 2)² = 25 against 4 for two bare diameters; the exact ratio is nearer ten — the law is a guide, not a table.
- Plate
- Free disc, radius 120 mm
- Nodal diameters · circles
- n = 3, s = 1
- Eigenvalue λ² = ωa²√(ρh/D)
- 52.92
- Chladni’s law index (n + 2s)²
- 25
- Frequency
- 904 Hz on the reference plate