What is the formula used to determine wavelength in ultrasound?

The formula used to determine wavelength in ultrasound is based on the relationship between the speed of sound in the medium, the frequency of the ultrasound wave, and the wavelength itself. Specifically, wavelength can be calculated by dividing the speed of sound in the medium by the frequency of the ultrasound wave.

In ultrasound, the speed of sound generally is approximately 1540 meters per second in soft tissue. The formula reveals that as the frequency increases, the wavelength decreases, and conversely, as the frequency decreases, the wavelength increases. This inverse relationship is fundamental in understanding how ultrasound systems operate, as different frequencies can provide various levels of detail and penetration, affecting image quality.

The other options do not correctly describe the relationship necessary for calculating wavelength in ultrasound. For instance, while the number of cycles and amplitude may relate to other sonic properties, they do not incorporate the necessary components of speed and frequency together to determine wavelength.