[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fgzozrUUry_IcdO7WV6h6k9-IYn5-NWnefkj8XcPMJtk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-04-13 11:08:10",138107945,[8,9,10,11],"光从空气射到分界面上,入射角足够小","光从空气射到分界面上,入射角足够大","光从玻璃射到分界面上,入射角足够大","光从玻璃射到分界面上,入射角足够小",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},8,"5954c8563392b4dfbee77f47a560f891","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F62d9ff10d1b6fe3e9a917a1d911f3da4.png","自然科学基础知识","a1caf9a744a14ea39345916e086fdc08","光的折射、反射和全反射","光线在空气和玻璃的分界面上发生全反射的条件是 ( )",[21,33,43,52,62,71,80,89],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-04-13 11:08:07",138107938,[26,27,28,29],"小于40°","在100°到140°之间","大于40°","在40°到100°之间","光线从真空中入射到一块平行透明板上,入射角为40°,则反射光线和折射光线的夹角可能是( )","v1",0,{"answer":34,"createTime":35,"id":36,"options":37,"question":42,"source":31,"type":32},[],"2024-04-13 11:08:08",138107939,[38,39,40,41],"根据n=sin i\u002Fsin r可知,介质的折射率与入射角的正弦成正比","根据n=sin i\u002Fsin rr可知,介质的折射率与折射角的正弦成反比","不同色光在该介质中的折射率不同","不同色光在该介质中的传播速度相同","如图所示,一束光从真空射向某种介质时,下列说法正确的是( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8388836a6df2389372d59eee7e26671e.png\">",{"answer":44,"createTime":35,"id":45,"options":46,"question":51,"source":31,"type":32},[],138107940,[47,48,49,50],"人看到的是鱼的实像,位置变浅了些","人看到的是鱼的虚像,位置变浅了些","鱼看到的是人的实像,位置偏低了些","鱼看到的是人的实像,位置偏高了些","根据图中的漫画,判断下列说法中正确的是( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F326df4b250b3ad4af44263d12055e2fd.png\">",{"answer":53,"createTime":54,"id":55,"options":56,"question":61,"source":31,"type":32},[],"2024-04-13 11:08:09",138107941,[57,58,59,60],"光的入射角必须等于临界角","光的入射角必须小于临界角","a是光疏介质,b是光密介质","b是光疏介质,a 是光密介质","如图所示,一束光从介质a斜射向介质b,在两种介质的分界面上发生了全反射,下列判断正确的是( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb9f6882f041be96b90cbf3ae3144ea25.png\">",{"answer":63,"createTime":54,"id":64,"options":65,"question":70,"source":31,"type":32},[],138107942,[66,67,68,69],"介质对a光的折射率小于b光","a光在介质中的速度小于b光","a光在真空中的波长小于b光","光从介质射向空气时,a光的临界角小于b光","a、b两种单色光组成的光束从空气进入介质时,其折射光束如图所示.则关于a、b两束光,下列说法正确的是( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff50363f2b1637bcb85bedc03844856f7.png\">",{"answer":72,"createTime":54,"id":73,"options":74,"question":79,"source":31,"type":32},[],138107943,[75,76,77,78],"光发生反射时,光的传播方向不一定改变","光发生反射时,光的传播方向可能偏转90°","光发生反射时,光的传播方向一定改变","光发生折射时,一定伴随着反射现象","关于光的反射与折射,下列说法不正确的是 ( )",{"answer":81,"createTime":54,"id":82,"options":83,"question":88,"source":31,"type":32},[],138107944,[84,85,86,87],"因为水的密度大于酒精的密度,所以水是光密介质","因为水的折射率小于酒精的折射率,所以水对酒精来说是光疏介质","同一束光,在光密介质中的传播速度较大","光由空气射入酒精时,有可能发生全反射","下列说法正确的是( )",{"answer":90,"createTime":5,"id":6,"options":91,"question":19,"source":31,"type":32},[],[8,9,10,11]]