A school bell rings with a fixed frequency of 400Hz. The speed of sound in air is 340m/s, while in water it is 1480m/s. Which statement about the wavelength of this sound when it moves from air into water is correct?
(a) The wavelength decreases because sound travels faster in water.
(b) The wavelength increases because sound travels faster in water.
(c) The wavelength stays the same because the frequency rises to match the higher speed.
(d) Both the frequency and the wavelength decrease when the sound enters water.