Sagot :
Answer:
The frequency never alters as waves pass from one medium to another. They slow down as waves pass through the denser medium and the wavelength decreases. Part of the wave moves faster and allows the wave to spin for longer. The wave is slower, but the wavelength is smaller, which means that the frequency is the same.
Explanation:
Answer:
When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases. Part of the wave travels faster for longer causing the wave to turn. The wave is slower but the wavelength is shorter meaning frequency remains the same