如图所示某列波以60°的入射角由甲介质射到乙介质的界面上同时产生反射和折射若反射波的波线与折射波的波线的夹角为90°此波在乙介质中的波速 Template




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tomski如图所示某列波以60°的入射角由甲介质射到乙介质的界面上同时产生反射和折射若反射波的波线与折射波的波线的夹角为90°此波在乙介质中的波速 coloring