a beam of parallel rays is reflected from a smooth plane surface.after reflection the rays will be A.convergingB.divergingC.parallelD.diffusedE.focusedA与E意思有什么不同?B与D意思有什么不同?问的是词汇,
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![a beam of parallel rays is reflected from a smooth plane surface.after reflection the rays will be A.convergingB.divergingC.parallelD.diffusedE.focusedA与E意思有什么不同?B与D意思有什么不同?问的是词汇,](/uploads/image/z/935653-13-3.jpg?t=a+beam+of+parallel+rays+is+reflected+from+a+smooth+plane+surface.after+reflection+the+rays+will+be+A.convergingB.divergingC.parallelD.diffusedE.focusedA%E4%B8%8EE%E6%84%8F%E6%80%9D%E6%9C%89%E4%BB%80%E4%B9%88%E4%B8%8D%E5%90%8C%3FB%E4%B8%8ED%E6%84%8F%E6%80%9D%E6%9C%89%E4%BB%80%E4%B9%88%E4%B8%8D%E5%90%8C%3F%E9%97%AE%E7%9A%84%E6%98%AF%E8%AF%8D%E6%B1%87%2C)
a beam of parallel rays is reflected from a smooth plane surface.after reflection the rays will be A.convergingB.divergingC.parallelD.diffusedE.focusedA与E意思有什么不同?B与D意思有什么不同?问的是词汇,
a beam of parallel rays is reflected from a smooth plane surface.after reflection the rays will be
A.converging
B.diverging
C.parallel
D.diffused
E.focused
A与E意思有什么不同?B与D意思有什么不同?
问的是词汇,
a beam of parallel rays is reflected from a smooth plane surface.after reflection the rays will be A.convergingB.divergingC.parallelD.diffusedE.focusedA与E意思有什么不同?B与D意思有什么不同?问的是词汇,
A和E的区别:
A是汇合、聚合,比如原来有3束光,现在合到一起,变成了1束.
E是聚焦,原来的一束光照射的面积有碗口大,现在只有针尖大.
B和D的区别:
B是分开,比如原来的1束光,现在变成3束.
D是散开,比如原来的1束光,现在四散漫射出去,分不出还有几束了.
不过这句话好像涉及不到这些区别,答案应该是C吧,平行光在光滑镜面反射后仍应该是平行光.
A只有收敛的意思,而E是汇聚成焦点
对于光线来说A与E,B与D没什么不同,这也印证了选C。