[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fXb7XnB1eXIKC997i-29GjsKV8uNwPon5xdRXdVOtMAk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-10 17:26:01",4178017,[8,9,10,11],"振幅不同,相位相同","振幅相同,相位相同","振幅相同,相位不同","振幅不同,相位不同",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},22,"05cc272230f763aa814d04fc4b242c05","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb71f5ef0bc91dad807788d7bf753eb02.png","大学物理","2a3e64f0f07f4f9ca5cfbc16f93d33f7","作业11.8","在驻波中,两个相邻波节之间各质点的振动",[21,32,35,44,50,59,68,73,79,85],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],4178016,[25,26,27,28],"r2-r1=(2k+1)λ\u002F2","φ20-φ10=(2k+1)π","φ20-φ10-2π(r2-r1)\u002Fλ=(2k+1)π","φ20-φ10-2π(r1-r2)\u002Fλ=(2k+1)π","如图所示,波长为λ的两列相干波在P点相遇.一波在S1点振动的初相是φ10,S1到P点的距离是r1;另一波在S2点振动的初相是φ20,S2到P点的距离是r2,以k代表零或正、负整数,则P点是干涉极小的条件为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe5118a968621057203590baed6b1efaf.jpg\">","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],4178018,[39,40,41,42],"0","0.5π","π","无法确定","某时刻驻波波形曲线如图所示,则a、b两点振动的相位差为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F989981237180e0a45818b508f4fe94e1.jpg\">",{"answer":45,"createTime":5,"id":46,"options":47,"question":49,"source":30,"type":31},[],4178019,[39,40,41,48],"1.5π","如图所示,两相干波源S1和S2相距0.5cm,S1的相位比S2的相位超前0.5π.在S1和S2的连线上,S1外侧P点处,两波引起的两谐振动的相位差为(波长2.0cm)\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe5119041693302cdc60e44d26ace6e04.jpg\">",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],4178020,[54,55,56,57],"A","2Acos(ωx\u002Fu)","2A","|2Acos(ωx\u002Fu)|","沿相反方向传播的两列相干波,其表达式分别为y1=Acosω(t-x\u002Fu),y2=Acosω(t+x\u002Fu)两波相干叠加后,各处质点简谐振动的振幅等于",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],4178021,[63,64,65,66],"四分之一波长","二分之一波长","四分之三波长","一倍波长","在驻波中,两个相邻波腹之间的距离为",{"answer":69,"createTime":5,"id":70,"options":71,"question":72,"source":30,"type":31},[],4178022,[63,64,65,66],"在驻波中,两个相邻波节之间的距离为",{"answer":74,"createTime":75,"id":76,"options":77,"question":78,"source":30,"type":31},[],"2024-10-24 19:43:47",162985183,[],"两列波叠加,产生驻波的条件:振幅相等、沿同一直线相反方向传播的两列相干波",{"answer":80,"createTime":81,"id":82,"options":83,"question":84,"source":30,"type":31},[],"2024-10-24 19:43:48",162985188,[],"一驻波的表达式为y=0.1cos(2πx)cos(50πt)(SI).两个相邻波腹之间的距离是____m",{"answer":86,"createTime":81,"id":87,"options":88,"question":89,"source":30,"type":31},[],162985190,[],"波的干涉条件:振动方向_________,振动频率__________,相位差_________"]