FinalExaminationofPhysicsIIfor2009MixedClass普通物理学真题试卷试题.doc

浙江大学2010-2011学年 秋冬 学期 《 普通物理学 II》课程期末考试试卷 课程号： 061R0070_，开课学院：__理学院___ 考试试卷：√A卷、B卷（请在选定项上打√） 考试形式：√闭、开卷（请在选定项上打√），允许带_计算器_入场 考试日期： 2011 年 01 月 17 日,考试时间： 120 分钟 诚信考试，沉着应考，杜绝违纪。 考生姓名： 学号： 所属院系： _ 题序 I II III-1 III-2 III-3 III-4 总 分 得分 评卷人 Physical constants: (0=8.85(10-12C2/N·m2; (0=4((10-7T·m/A, e=1.6(10-19C, me=9.11(10-31kg，h=6.63(10-34J·s I. Fill in the space underlined. (35%) 1. Figure 1 shows a Thomson atom model of helium (He, Z=2). Two electrons, at rest, are embedded inside a uniform sphere of positive charge 2e. The distance d between the electrons is so that the configuration is in static equilibrium. 2. Two long wires a distance b apart carry antiparallel currents i, as in Figure 2. The magnetic induction strength B at point P, which is equidistant from the wires, is given by . 3. For the charge configuration of Figure 3, the electric potential V(r) for points on the vertical axis, assuming rd is given by . Set V=0 at infinity. 4. A broad source of light ((=680nm) illuminates normally two glass plates 120mm long that touch at one end and are separated by a wire 0.048mm in diameter at the other end (Fig. 4). How many bright fringes appear over the 120-mm distance? . 5．What would be the action of a quarter-wave plate ((/4波片)on the l. 6. The de Broglie’s wavelength of a 1.00-KeV electron is of . 7. Stationary state Schr?dinger’s Equation(定态薛定谔方程) for one dimensional system is: II. Multiple Choice (Choose all the apply, 20%) Which of the following does not significantly contribute to the magnetic properties of a substance? Orbital magnetic moments of electrons. (B) Spin magnetic moments of electrons (C) Magnetic moments of protons and neutrons. (D) All contribute equally.