Young’s modulus of a nylon string has been determined experimentally by combining elasticity theory and wave optics. A diffraction experiment was setup to determine the change in string diameter for different tensile forces, applied by means of hanging weights. A linear elasticity model was used to calculate Young’s modulus. We provide a simple method, which could be used as the basis of an experiment for the introductory university level.

中文翻译：

---

评估尼龙绳弹性性能的衍射方法

结合弹性理论和波动光学，通过实验确定了尼龙绳的杨氏模量。设置衍射实验以确定通过悬挂重物施加的不同拉力时弦直径的变化。使用线性弹性模型来计算杨氏模量。我们提供了一种简单的方法，可以作为大学入门级实验的基础。