An acoustic sensor sends a sound pulse through a glass panel and into a polymer coating.
| material | wave speed in m/s\mathrm{m/s}m/s |
|---|---|
| glass | 5.10 × 103 |
| polymer | 1.20 × 103 |
The wavelength of the sound pulse in the glass is 0.0120 m.
Calculate the wavelength of the sound pulse in the polymer coating.