Damage may be a result of the direct effects of alcohol on the brain or may result indirectly, from a poor general health status or from severe liver disease. For example, thiamine deficiency is a common occurrence in people with alcoholism and results from poor overall nutrition.
In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction. On the diagram above, the distance from point A to point C or from point B to point D would be representative of the wavelength.
Calculate wavelength with the wavelength equation. To find the wavelength of a wave, you just have to divide the wave's speed by its frequency. The formula for calculating wavelength is: Wavelength=WavespeedFrequency{\displaystyle Wavelength={\frac {Wavespeed}{Frequency}}}. Wavelength is commonly represented by the Greek letter lambda, Î»{\displaystyle \lambda }.