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rainbow的形成作文
更新时间: 2025-08-27 21:24:18
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rainbow的形成作文

蒲采松回答:
  Therainbowisaverycommonphenomenonofphysicaloptics.Usuallywhenwewillappearinthesunshineaftertheraintoseetheskyabove,colorfulspectrum,willbetheformationofvaultedcurvedshapes,verybrightcolors.Youknowwhytherainbowisformed?Howistherainbowformed?   Infact,aslongasthewaterdropletsintheair,andthesunisbehindtheobserveratalowangleradiation,mayproducetherainbowphenomenoncanbeobserved.Therainbowisbecausesunlightnearlyroundairdroplets,resultingindispersionandreflectionlightinto.Thesunlightwillalsodropunderdifferentincidentangle,withinthewaterdropletsistoreflectthedifferentangle.Withthereflectionbetween40to42degreeisthemostintense,theformationofpeoplemayseetherainbow.Therainbowaftertherainintheafternoonappearsmostoften,justturnwhentheweatherisfine.Whentheairinlessdustandfullofsmallwaterdroplets,theskysidebecausetherearestillcloudsanddark.Andtheobserverhasnoheadorbehindthecloudocclusionsvisiblesunlight,itwillbeeasiertobeseenrainbow.   Thegeneralappearanceoftherainbowiscloselyrelatedwiththeweather,peoplefromtherainbowappearsintheskypositioncanbepresumedthattherewillbesunnyorrainydays.Iftherainbowappearsintheeastern,thelocalwillnoteasilyrain,whilewesternrainbow,itwillhaveagreatpossibilitytorainlocal.
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