2016年北京市东城区高三一模物理试题及答案.pdf

《2016年北京市东城区高三一模物理试题及答案.pdf》由会员分享，可在线阅读，更多相关《2016年北京市东城区高三一模物理试题及答案.pdf（13页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、北京市东城区高三一模理科综合物理试题2016.4.6 13下列说法正确的是A气体从外界吸收热量，气体的内能一定增加B液体中的悬浮微粒越小，布朗运动越明显C封闭在气缸中的气体，体积减小，压强一定减小D两块纯净的铅板压紧后能合在一起，说明此时分子间不存在斥力14已知单色光 a的频率低于单色光b的频率，则A通过同一玻璃三棱镜时，单色光a的偏折程度小B从同种玻璃射入空气发生全反射时，单色光a的临界角小C通过同一装置发生双缝干涉，用单色光a照射时相邻亮纹间距小D照射同一金属发生光电效应，用单色光a照射时光电子的最大初动能大15下列表述正确的是A中，X表示B是重核裂变的核反应方程C放射性元素的半衰期与原子

2、所处的化学状态无关D 衰变中放出的 射线是核外电子挣脱原子核的束缚而形成的162015年12月29日0时04分，我国在西昌卫星发射中心成功发射高分四号卫星至此我国航天发射“十二五”任务圆满收官高分四号卫星是我国首颗地球同步轨道高分辨率光学成像卫星，也是目前世界上空间分辨率最高、幅宽最大的地球同步轨道卫星，它的发射和应用将显著提升我国对地遥感观测能力，该卫星在轨道正常运行时，下列说法正确的是A卫星的轨道半径可以近似等于地球半径B卫星的向心加速度一定小于地球表面的重力加速度C卫星的线速度一定大于第一宇宙速度D卫星的运行周期一定大于月球绕地球运动的周期17如图所示为一列沿x轴正方向传播的简谐横波在t

3、 0时的波形图，当x4cm处质点在 t0时的运动状态传播到 x 10cm处质点时，下列说法正确的是Ax2cm处质点的位移最大Bx4cm处质点的速度最大Cx6cm处质点沿x轴正方向运动到x 12cm处D4cmx6cm 的质点正在向y 轴负方向运动18实验小组为了探究物体在倾角不同的斜面上的运动情况，将足够长的粗糙木板的一端固定在水平地面上，使物体以大小相同的初速度v0由底端冲上斜面，每次物体在斜面上运动过程中斜面倾角保持不变。在倾角 从0 逐渐增大到 90 的过程中A物体的加速度增大B物体的加速度减小C物体在斜面上能达到的最大位移先增大后减小D物体在斜面上能达到的最大位移先减小后增大19如图所示

4、，表面粗糙的水平传递带在电动机的带动下以速度v 匀速运动，在空间中边长为2L的正方形固定区域内有竖直向上的匀强磁场，磁感应强度大小为B。质量为 m，电阻为 R，边长为 L的正方形金属线圈 abcd平放在传送带上，与传送带始终无相对运动，下列说法中正确的是A在线圈进入磁场过程与穿出磁场过程中，感应电流的方向都沿abcda方向B在线圈穿过磁场区域的过程中，线圈始终受到水平向左的安培力C在线圈进入磁场过程中，线圈所受静摩擦力的功率为23B LRvD在线圈穿过磁场区域的过程中，电动机多消耗的电能为232B LRv文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码

5、:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3

6、HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10

7、ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档

8、编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T

9、3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U1

10、0 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6

11、文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P6文档编码:CC5A2Q2G3T3 HI1C6G8B3U10 ZF9L2C2K9P620物理学和计算机技术的发展推动了医学影像诊断技术的进步。彩色超声波检测仪，简称彩超，工作时向人体发射频率已知的超声波，当超声波遇到流向远离探头的血流时探头接收的回波信号频率会降低，当超声波遇到流向靠近探头的血流时探头接收的回波信号频率会升高。利用计算机技术给这些信号加上色彩，显示在屏幕上，可以帮助医生判定血流的方向、流速的大小和性质计算机辅助 X射线

12、断层摄影，简称T。工作时 X射线束对人体的某一部分按一定厚度的层面进行扫描，部分射线穿透人体被检测器接收。由于人体各种组织的疏密程度不同，检测器接收到的射线就有了差异，从而可以帮助医生诊断病变。根据以上信息，可以判断下列说法中正确的是A彩超工作时利用了多普勒效应BCT 工作时利用了波的衍射现象C彩超和 CT 工作时间向人体发射的波都是纵波D彩超和CT 工作时间向人体发射的波都是电磁波21（18分）（1）实验小组的同学利用弹簧秤在水平放置的方木板上做“验证共点力的合成规律”实验时，利用坐标纸记下了橡皮筋的结点位置O以及两只弹簧秤施加的拉力的大小和方向，如图1所示。图中每个正方形小格边长均代表0.

13、5N。利用作图法可知F1与F2的合力大小为_N。（结果保留两位有效数字）（2）兴趣小组的同学想测量一捆带绝缘漆的镍铬合金丝的长度。如图 2 所示，他们用螺旋测微器测得合金丝的直径d_mm。查得镍铬合金丝的电阻率为，文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2

14、 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文

15、档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q

16、3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1

17、L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J

18、3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O

19、3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3若测出合金丝的电阻为R，则合金丝的长度可以根据公式

20、L_求出（用、d、R 表示）。他们用表盘如图3所示的多用电表测量合金丝的电阻。先将选择开关调到电阻挡的“X10”位置，将红、黑表笔分别插入“”、“”插扎，把两笔尖相互接触，调节_（选填“S”或“T”），使多用电表的指针指向电阻挡的_（选填“0”或“”）刻线。之后将红、黑表笔的笔尖分别与合金丝两端接触，发现指针偏转角度过大，于是他们将选择开关调到电阻挡的_（选填“X1”或“X100”）位置。正确选择挡位并重新调零后，他们将红、黑表笔分别与合金丝的两端接触，测得合金丝的电阻为15。他们还想用伏安法测量合金丝的电阻时，发现实验室提供的电表内阻约0.5 ，电压表内阻约3k。为减小测量误差，在实验中应采

21、用图4 中的（选填“甲”或“乙”）电路。他们选择合适的电路后，分别用最大阻值是5、50、2000 的三种滑动变阻器做限流电阻。当滑动变阻器的滑片由一端向另一端移动的过程中，根据实验数据，分别做出电压表读数U随滑片移动距离 x的关系曲线 a、b、c。如图 5所示。用最大阻值为2000 的滑动变阻器做实验得到的图线是图中的_（选填“a”、“b”或“c”）为减小实验误差，应选择图中的_（选填“a”、“b”或“c”）所对应的滑动变阻器。文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档

22、编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3

23、X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L

24、2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3

25、文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3

26、Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F

27、1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6

28、J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J322（16分）某次对新能源汽车性能进行的测量中，汽车在水平测试平台上由静止开始沿直线运动，汽车所受动力随时间变化关系如图1所示，而速度传感器只传回第10s以后的数据（如图2所示）。已知汽车质量为 1000kg，汽车所受阻力恒定。求：（1）汽车所受阻力的大小；（2）10s末汽车速度的大小；（3）前 20s汽车位移的大小。23（18分）轻质弹簧一端固定，另一端与放置于水平面上的小物块（可视为质点）相连接。弹簧处于原长时物块位于O点。

29、现将小物块向右拉至A点后由静止释放，小物块将沿水平桌面运动。已知弹簧劲度系数为 k，小物块质量为m，OA 间距离为 L，弹簧弹性势能的表达式为212kx，式中 x为弹簧形变量的大小。（1）若小物块与水平桌面间的动摩擦因数5kLmg，且最大静摩擦力等于滑动摩擦力。求：小物块第一次经过O点时的速度大小；小物块向左运动过程中距离O点的最远距离以及最终静止时的位置。（2）在我们的生活中常常用到弹簧，有的弹簧很“硬”，有的弹簧很“软”，弹簧的“软硬”程度其实是由弹簧的劲度系数决定的。请你自行选择实验器材设计一个测量弹簧劲度系数的实验，简要说明实验方案及实验原理。24（20分）电视机的显像管中电子束的偏转

30、是应用磁偏转技术实现的。如图1所示为显像管的原理示文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2

31、 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文

32、档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q

33、3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1

34、L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J

35、3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O

36、3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3意图。显像管中有一个电子枪，工作时阴极发射的电子（速度很小，可视为零）经过加速电场加速后，穿过以 O点为圆心、半径为r的圆形磁场区域（磁场方向垂直于纸面），撞击到荧光屏上使荧光屏发光。已知电子质量为m、电荷量为 e

37、，加速电场的电压为U，在没有磁场时电子束通过O点打在荧光屏正中央的M点，OM 间距离为 S。电子所受的重力、电子间的相互作用力均可忽略不计，也不考虑磁场变化所激发的电场对电子束的作用。由于电子经过加速电场后速度很大，同一电子在穿过磁场的过程中可认为磁场不变。（1）求电子束经偏转磁场后打到荧光屏上时的速率；（2）若磁感应强度随时间变化关系如图2所示，其中，求电子束打在荧光屏上发光所形成的“亮线”长度。（3）若其它条件不变，只撤去磁场，利用电场使电子束发生偏转。把正弦交变电压加在一对水平放置的矩形平行板电极上，板间区域有边界理想的匀强电场。电场中心仍位于O点，电场方向垂直于OM，为了使电子束打在荧

38、光屏上发光所形成的“亮线”长度与（2）中相同，问：极板间正弦交变电压的最大值Um，极板长度 L、极板间距离 d之间需要满足什么关系？（由于电子的速度很大，交变电压周期较大，同一电子穿过电场的过程可认为电场没有变化，是稳定的匀强电场）文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ

39、4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2

40、N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:

41、CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1

42、HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 Z

43、J2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编

44、码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X

45、1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2

46、 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文

47、档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q

48、3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1

49、L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J

50、3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O3Q3X1 HJ4I2S4F1L2 ZJ2N7C8D6J3文档编码:CC2U10O