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“测定玻璃的折射率”、“测定凸透镜的焦距”和“用卡尺观察光的衍射现象”是要求同学们能够独立完成的光学实验,对于这些实验不仅要明确实验目的、理解实验原理和方法,能够控制实验条件,会使用仪器、会观察分析实验现象、会记录处理实验数据,并能得出正确的结论,还要能灵活地运用已学过的物理理论和这些方法去处理问题.下面举例分析,希望对同学们提高实验能力和应试技能能够有所帮助.例1在“测定玻璃的折射率”的实验中,已画好玻璃砖界
“Determination of the refractive index of glass ”, “Determination of the focal length of the convex lens ” and “Observation of light diffraction with a caliper ” is an optical experiment that requires students to complete independently, for these experiments not only to clear the experimental purpose, Understand the principles and methods of the experiment, be able to control the experimental conditions, will use the instrument, will observe and analyze the experimental phenomena, will record the experimental data, and can draw the correct conclusions, but also be able to flexibly use the learned physics theory and these methods To deal with the problem. The following example analysis, hoping to improve students’ ability to experiment and exam skills can be. Example 1 In determining the refractive index of glass experiment,