Wave Speed Formula (v = fλ)
v = f·λ
What it means
Wave speed equals frequency times wavelength — true for sound, light, and waves on a string.
Variables
| Symbol | Quantity | SI unit |
|---|---|---|
v | velocity | m/s |
f | frequency | Hz |
λ | wavelength | m |
Worked example
Given f = 50 Hz, λ = 2 m, solve for v:
v = 100 m/s