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习题练习:Physics Unit29: Molecules and Solids  作者: physics  发布日期: 2023-05-01 14:26

答题人: 匿名未登录  开始时间: 23年05月01日 13:55  切换到: 整卷模式

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1#
 
单选题搜藏此题  
  Covalent bonding is cause(qgk xfrr,on1)fd)pxhe + ,l4d by (1.0 分)
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2#
 
单选题搜藏此题  
  Ionic bonding is cauga,sj sx d,,7/k ypmh3sed by (1.0 分)
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3#
 
单选题搜藏此题  
  The bond energy for a hye.tme3;deqhtsqe/( clik*j0h 8 0a0hdrogen molecule is (1.0 分)
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4#
 
单选题搜藏此题  
  Van der Waals bonding is b- o(v iuq*r6fzr)eg9caused by (1.0 分)
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5#
 
单选题搜藏此题  
  In general, which of the followin8)72f,fjy x fvcye64wae yv 3ng is the strongest bond? (1.0 分)
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6#
 
单选题搜藏此题  
  In general, which of the fo7z8em;y jt r h 4czduhdv,-b/9llowing is the weakest bond? (1.0 分)
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7#
 
单选题搜藏此题  
  For a diatomic quantum mechanical vp xuz+ q (1*vdswe-f:rotator, the energy difference between adjacent energy l-d:z1pq *(vf+xw uvseevels (1.0 分)
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8#
 
单选题搜藏此题  
  A diatomic quantum mechanical rotator in the L = 1 quantu/27 4z1dnmt; gizxtvsb*0 wp bm state has energy E. The same rotator in the L = 2 quantum state will hawnpg1 7b t20tbmzv*4 z sx;di/ve energy (1.0 分)
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9#
 
单选题搜藏此题  
  In its lowest quantum state, the energy of a diatomic harmonicao 9 z9 y0pkq:b:* 0hdrzp ogj0ln29ib oscillator is (1.0 分)
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10#
 
单选题搜藏此题  
  For a diatomic quantum mechanical vibr9m zn:zhbek+; ,b0onrkcfq 5:ator, the energy difference between adjacent quantumbn:qz9fo0e:b hrkmc k;5+nz , states (1.0 分)
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11#
 
单选题搜藏此题  
  In its lowest quantum state, a diatomic *le0uaxqn2aw-e ey+0 quantum mechanical rotator has a rotational 0e2q+ y-l ux*e0aw neaenergy of (1.0 分)
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12#
 
单选题搜藏此题  
  A diatomic quantum mechanical vibrator in its ; ikljq2x.bqns-ql u-p)iu7:ground state has energy E. This same vibrator in its thil-qsjn) 7pl; iu:q uxbqi.2 -krd state has energy (1.0 分)
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13#
 
单选题搜藏此题  
  Metallic bonding is caused b69gbk9zgs qp7m:v nn91+ uppi1c c co.y (1.0 分)
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14#
 
单选题搜藏此题  
  In a good conductor, th1o skkhwhi9ej *qp(wkc65 d*8e highest energy band containing electrons is (1.0 分)
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15#
 
单选题搜藏此题  
  In a good insulator, the highest energy band contai+v+6oybw dw(yy 2 j.dining electrons, called the valenw.2 (yy6i+vbwjod yd +ce band, is (1.0 分)
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16#
 
单选题搜藏此题  
  An n-type semiconductor is p:f1 jh ;*a6nhtezb.k yroduced by (1.0 分)
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17#
 
单选题搜藏此题  
  A p-type semiconductor is:,aa vm)kh+ v0iward 6 produced by (1.0 分)
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18#
 
单选题搜藏此题  
  In a p-type semiconduj4qu*i5 t(d/zr 34az0urht cc ctor, a hole is (1.0 分)
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19#
 
单选题搜藏此题  
  When a voltage is ap8:3 i1 .lf4uwaryrsijplied across a p-type semiconductor, the holes (1.0 分)
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20#
 
单选题搜藏此题  
  If a battery is connected to a di5m ,a:p mwuu9tode with the positive terminal to the p side and the negative terminal to the n side, then diode mu 9m tu:aw5,pis said to be (1.0 分)
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21#
 
单选题搜藏此题  
  A simple junction transistor consists of three semic7e 0p8fv gca,iy* *bwaonductor sections consisting o ,gbeya7wp0f* cv8*iaf (1.0 分)
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22#
 
单选题搜藏此题  
  A diatomic quantum mechanical oscillator has a moment of in vrkm-s0 /.2snnpq jg2z(y( moertia of $7.73 \times 10^{-45} \; kg \cdot m^{2}$. What is the rotational energy in the quantum state characterized by L = 2? (1.0 分)
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23#
 
单选题搜藏此题  
  A diatomic molecule h8b3q; w-8od gw(*vxosarhb . pas $2.6 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 1 quantum state? (1.0 分)
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24#
 
单选题搜藏此题  
  A diatomic molecule has cdn7qe-+b 7dqyvsx2 0 $18 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 0 quantum state? (1.0 分)
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25#
 
单选题搜藏此题  
  Estimate the rotational energy (in eV) for a diatomip2wdyfg/(s jn .()is ps4hus(c hydrogen molecule in the L = 4ssuhgp) .fswj(ip yn sd(/(2 2 quantum state. (The equilibrium separation for the H2 molecule is 0.075 nm.) (1.0 分)
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26#
 
单选题搜藏此题  
  A diatomic molecule is vibrating in the (/r t 6f*adm .ki; uwwur6c;uqv = 1 quantum state with a frequency of uqa c. f tw;i/;krmrd6 uwu*6($2.0 \times 10^{13} \; Hz$. What is the energy of vibration? (1.0 分)
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27#
 
单选题搜藏此题  
  The energy gap between the valence and conduction bands in a certain ssyl-olwp5/+c: ys8b w.aq ,f xemiconductor is 1.25 ebs, ofy/5wa8+pcll xw: qs.-yV. What is the threshold wavelength for optical absorption in this substance? (1.0 分)
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