A bottle has a standing wave with a frequency of 375 Hz. The next higher-frequency standing wave in the bottle is 625 Hz.
a) The wavelength of the 375 Hz wave is longer than that of the 625 Hz wave.
b) The wavelength of the 375 Hz wave is shorter than that of the 625 Hz wave.
c) The amplitude of the 375 Hz wave is greater than that of the 625 Hz wave.
d) The amplitude of the 375 Hz wave is less than that of the 625 Hz wave.