Which frequency range is best for sounding in deeper waters due to low absorption rates?

Low frequencies are indeed the best choice for sounding in deeper waters primarily due to their lower absorption rates compared to higher frequency sounds. In underwater acoustics, lower frequency sounds travel longer distances with less energy loss. This is crucial for applications such as marine exploration, sonar, and underwater communication, where the goal is to penetrate deeper water layers and gather data or detect objects.

As sound waves travel through water, they experience absorption, which is the process where sound energy is converted into heat energy, diminishing the wave's intensity. Low frequencies are less susceptible to this absorption, allowing them to maintain their strength and clarity over greater distances in deep water environments. Therefore, they are more effective for exploring the depths of oceans or large bodies of water.

In contrast, high frequencies are more easily absorbed in water and would not be effective for deep-water applications. Medium frequencies might achieve some distance, but they do not match the longevity of low frequencies. Ultrasonic frequencies, while they can be used for certain applications, also face significant limitations in depth due to their high absorption rates in water. All these factors contribute to the preference for low frequencies when it comes to sounding in deeper waters.