A sound wave produced by a source in water has a frequency of 750 Hz. It travels through water and then enters a steel plate.
| Material | Speed of sound in m/s\text{m/s}m/s |
|---|---|
| water | 1500 |
| steel | 5000 |
Calculate the wavelength of the sound wave in water.
Calculate the wavelength of the sound wave in the steel plate.
A student says that the sound has a higher pitch after entering the steel plate. Explain whether the student is correct.