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Sagot :
In saltwater, where sound travels at a speed of 1537 m/s, such a sound has a wavelength of 90.4 m. Blue whales are thought to communicate by using sound at a frequency of 17 Hz.
This is audible in the ocean approximately 1000 kilometers away. In physics, the wavelength is the length over which a periodic wave repeats, or its spatial period. It is the separation between consecutive equivalent points on a wave that are in the same phase.
Lamda = v/f yields the wavelength of a wave.
where the wave's speed is v and its frequency is f
The whale's sound has a wavelength of 90.4 meter's since the whale's sound has a velocity of 1531 m/s and a frequency of 17.0 Hz.
Learn more about wavelength here
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