問(wèn)答題有一光源S與接收器R相對(duì)靜止距離為l,S—R裝置浸在均勻無(wú)限的液體介質(zhì)靜止折射率n中試對(duì)下列三種情況計(jì)算光源發(fā)出訊號(hào)到接收器收到訊號(hào)所經(jīng)歷的時(shí)間液體介質(zhì)相對(duì)于S—R裝置靜止

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