Wave Speed / Wavelength / Frequency Calculator mechanism

Model scope

The formulas are standard, but verdict is NEEDS_REVIEW because the spec leaves units, zero/negative-input behavior, and the applicability assumptions of the string formula ambiguous.

No additional formula finding is recorded.

Units and conventions

• For v=fλ, use v in m/s, f in Hz (s^-1), and λ in meters; units must be mutually consistent.
• For v=√(T/μ), use tension T in newtons and linear density μ in kg/m; the result is in m/s.
• The string formula assumes an ideal, flexible, uniform, taut string with negligible bending stiffness and appropriate non-dispersive behavior.
• Wavelength inputs such as nanometers must be converted to meters before applying the formula.

Inspectable vector

One of 4 source-bound review vectors:

{
  "inputs": {
    "f_Hz": 2.5,
    "lambda_m": 0.8
  },
  "expected_outputs": {
    "v_m_per_s": 2
  },
  "working": "v=fλ\nv=(2.5 s^-1)(0.8 m)\nv=2.0 m/s"
}

Failure boundary

BREAK_CLAIMED · SELF_FLAGGED

The string-wave formula divides by zero when linear density is zero, and negative frequency exposes an unresolved signed-versus-magnitude convention. The input-schema branch also requires explicit mode selection.

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche5/tranche5-results.json
• BOUNDARY_HAZARD_CATALOG.json