2020 Shanghai Question 9 Free-response Differentiating 2020_上海 Paper 9、观察光的衍射实验装置如图所示,用红色的激光可以照出某种衍射条纹,为了减小条纹 宽度,可( ) (A)减小单缝宽(B)用绿光照射 (C)增大单缝与光屏间距离 (D)减小激光器与单缝间距离 Answer keyB ☆ SaveCan't do it, show the explanation查看原卷 →