Frequency, wavelength Clause Samples

Frequency, wavelength phase of a wave Waves are disturbances with a regular repeating pattern that travel across a medium. Sound waves are longitudinal, as opposed to transverse, in that the direction of wave travel is the same as the direction of energy transfer. The properties of any wave can be described by the frequency, wavelength and phase of the wave. Frequency (f) refers to the number of oscillations passing an observer in a unit of time usually measured in Hz (1 Hz = 1cycle per second). Ultrasound refers to sound waves whose frequency falls outside the audible range i.e. higher than 20 kHz. The wavelength (λ) refers to the distance between two consecutive peaks or troughs of a wave. It follows that the speed of a wave is given by . Phase refers to the point in the wave that we take a given observation and is measured in degrees (o) (▇▇▇▇▇▇ et al. 2003).