摘要
利用牛顿环干涉法分别测量了空气,水和不同溶度NaCl溶液的折射率。实验发现牛顿环中先后有空气薄膜和水薄膜时,干涉条纹变得模糊,尤其较大级次的条纹很难分辨,经研究发现增大牛顿环下表面玻璃板的反射率可提高条纹的清晰度,实验中在清晰度良好条件下用牛顿环干涉法测量了不同浓度NaCl溶液折射率,其实验结果与理论值符合的较好,其结果很大程度上扩充和丰富了大学物理和大学物理实验中的内容。
Using the Newton's ring interference method to measure the reflectivity of the air,water and various concentrations of NaCl.It is found that the interference fringes become blurred in the Newton's rings from air film to water film.Especially,the stripes of larger orders are very difficult to distinguish.However,it is found that the sharpness of fringes can be improved by increasing the reflectivity of glass plates on the lower surface of Newton rings,and the refractive index of various concentrations of NaCl is measured by the Newton's ring interference method under the condition of good sharpness.The experimental results accord well with the theoretical values,and greatly expand and enrich the the contents of College Physics and Physical experiments.
作者
李硕
赵婉婷
罗浩
王邴晨
何越
LI Shuo;ZHAO Wanting;LUO Hao;WANG Bingchen;HE Yue(College of Physics,Jilin University,Jilin Changchun 130013;College of Computer Science and Technology,Jilin University,Jilin Changchun 130013;College of GeoExploration Science and Technology,Jilin University,Jilin Changchun 130026)
出处
《大学物理实验》
2019年第2期25-27,共3页
Physical Experiment of College
基金
2018年吉林大学开放性创新项目(946OEP18和9460EP39)
关键词
牛顿环干涉法
液体折射率
等厚干涉
Newton's ring interference
liquid refractive index
equal thickness interference
