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关于凸透镜成像规律的探究及其应用历来是各类考试的重点,侧重考查同学们进行实验探究和应用规律解决实际问题的能力.在解答时,同学们容易受到思维定势和错误观念诱导而出现错解.易错点一:对凸透镜成像规律的探究易错1.测量凸透镜焦距的常用方法是将凸透镜正对着太阳光,沿光线方向上下移动凸透镜,直到纸屏上出现一个最小、最亮的光斑(即为焦点)为止,用刻度
The research and application of convex lens imaging has always been the focus of all kinds of examinations, focusing on examining the students to explore the experimental and application of the law to solve practical problems in the ability to answer, the students are vulnerable to the thinking of the situation and the wrong concept of induction Wrong point one: easy to go wrong with the law of the imaging of the convex lens 1. The common method of measuring the focal length of the convex lens is the convex lens is facing the sun, moving the convex lens up and down along the light until a minimum, Of the spot (that is, the focus) so far, with the scale