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物理学科是一门综合性的学科,可以从不同的角度解决同一个物理问题。本文从多角度分析08年上海物理高考题第22题。1 题目有两列简谐横波 a、b 在同一媒质中沿 x 轴正方向传播,波速均为 v=2.5m/s,在 t=0时两列波的波峰正好在 x=2.5m/s 处重合,如附图所示,(1)求两列波的周期 T_a 和 T_b。(2)求 t=0时两列波的波峰重合处所有位置。(3)辨析题:分析并判断在 t=0时是否在两列波的波谷重合处。某同学分析如下:既然两列波的波峰与波峰存在重合
The physics discipline is a comprehensive discipline that can solve the same physical problem from different perspectives. This article analyzes the 22nd title of the 2008 Shanghai Physical Education Examination Question from multiple perspectives. The 1 subject has two columns of harmonic transverse waves a and b traveling in the positive direction of the x-axis in the same medium. The wave speeds are both v=2.5 m/s. At t=0, the wave crests of the two columns are exactly at x=2.5 m/s. Coincidence, as shown in the drawing, (1) Find the periods T_a and T_b of the two waves. (2) Find the position where the wave peaks of the two columns of waves coincide at t=0. (3) Analyze and analyze questions: Analyze and judge whether or not the valleys of the two columns of waves coincide at t=0. A student’s analysis is as follows: Since the wave peaks and wave peaks of the two columns of waves overlap