如图所示，两块相同的玻璃等腰三棱镜ABC置于空气中，两者的AC面相互平行放置，由红光和蓝光组成的细光束平行于BC面从P点射入，通过两棱镜后，变为从a、b两点射出的单色光，对于这两束单色光，下列说法错误_刷题宝

题干

如图所示，两块相同的玻璃等腰三棱镜ABC置于空气中，两者的AC面相互平行放置，由红光和蓝光组成的细光束平行于BC面从P点射入，通过两棱镜后，变为从a、b两点射出的单色光，对于这两束单色光，下列说法错误的是（）

A：红光在玻璃中传播速度比蓝光大

B：从a、b两点射出的单色光不平行

C：从a点射出的为红光，从b点射出的为蓝光

D：从a、b两点射出的单色光仍平行，且平行于BC

上一题下一题 0.0难度选择题更新时间:2019-11-04 03:45:02

答案(点此获取答案解析）

B

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