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机械波的问题是很容易出现多解现象的,这是由于波的传播和介质各质点的振动之间有着密切的内在联系,在求解这类问题时,如果质点振动或波的传播方向不确定、波的传播时间或距离不确定等,就容易出现多解的现象.如果在解题中不能透彻全面的分析题意,合理的使用已知条件,就会造成解答不完整,或用特解代替通解的现象.本文拟就几例来说明可能出现的多解问题.
The problem of mechanical waves is that multiple solutions are prone to occur. This is due to the close internal relationship between the propagation of waves and the vibration of medium particles. When solving such problems, if the direction of particle vibration or wave propagation is uncertain, Wave propagation time or distance uncertainty are prone to multiple solutions. If a problem cannot be thoroughly and fully analyzed in the problem solving, reasonable use of known conditions will cause the solution to be incomplete or be replaced by a special solution. The general solution phenomenon. This article proposes several examples to illustrate the possible multiple solution problems.