
今日知识点:Phase Difference
例题
Question: A wave has a wavelength of 24cm. Two points on the wave are radians out of phase. The distance between these two points could be

解析
此题考察点为phase difference与path difference的互换。两点间是 radians out of phase,占的四分之一,因此path difference也是wavelength的四分之一,6 cm。但题目很明显并无6 cm这一选项。因此推断这两个点是不在同一cycle内的out of phase,因此两点间的path difference可以是wavelength ,故应选C。
下面我们为大家准备了一道同类型的题目,请大家一起来试试解答。
Question: Two waves, each with a wavelengh