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PRACTICE：Physics Unit29: Molecules and Solids
本Practice来源于https://webassign.org，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 328 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://webassign.org/test328.html
 Author: physics  Publish Date: 2023-05-01 14:26    Total Marks: 27 mks  Marks Awarded: _____________

User Name: No Login  Start Time: 23年05月01日 13:55  Switch to Whole-Paper Mode

Mark Problem
1#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Covalent bonding is caused by fti iiazq8;+,

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Ionic bonding is caused j q 1 c6qm5*jqb3uiqn(by

Correct Answer:    
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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The bond energy for a hydrogen molech+nq yu5s)r78 facox)7swkui,u6 t ;mule is

Correct Answer:    
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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Van der Waals bonding is caused :hc3hjj fkul.akx3.7:l qn+vby

Correct Answer:    
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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In general, which of the f8tt plid3 22t9 kvk0 78mgcavfollowing is the strongest bond?

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Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In general, which of the following is the weakesa.mr7b) m5e wpt bond?

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Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  For a diatomic quantum mechanical rotator, the energy difference betweewwbcya. rt6 +:)yfjf,3/t ylvn adjacentytw3y : yr)j6 fva,wb+/tl.fc energy levels

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical rotator in the L = 1 quantu ;o*jbdyh )q7l.ou)ph .e(f+u boxu1nm state has energy E. The same rotator in the L = 2 *1puo xnbe;..7)l uod(hquf+h)bjo y quantum state will have energy

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In its lowest quantum state, the energy of a diatomic hag- /yba2sqy z)rmonic oscillator is

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  For a diatomic quantum mechanical vibrator, the energy dmc .e0q(v xwolxhe m amxe5;/)m*y8 t(ifference between adjacent quantum statese.hx*oe yw/0 m;me8x xclt (vqm)am5(

Correct Answer:    
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Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In its lowest quantum state, a diatomic qon (yw 1lt3 /.bqmnap9xv.q4quantum mechanical rotator has a rotational energy t.3wobplmn x.v14 (nq qq9/a yof

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical vibrator in its ground stat 63(uz z/wz7cg:psw mme has energy E. This same vibrator in its third state has z(g3cz6/swuz: p7m mwenergy

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Metallic bonding is ca9/uz 0eb6p nvwused by

Correct Answer:    
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Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a good conductor, the highest en 3 tm8 fh45 v,-es*sxjqzps(gnergy band containing electrons is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a good insulator, the highest energy ban:lai 0 ,ne1buid containing electrons, called the valenl n01a,ei: uibce band, is

Correct Answer:    
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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An n-type semiconductor is producedf )ml*9d ic68kk ynshm- ,ov2f by

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A p-type semiconductor isej)v +2p/nsfq produced by

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a p-type semiconductor, drv fjncu6n)of 4k*6qsk .9cw 5 3er*pa hole is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a voltage is applied across a p-type semiconducto -k t2wlrsc0)5iaom8kr, the holes

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a battery is connected to a diode with the positive teuhv.3i t:si8ffl +k7orminal to the p side and the negative terminal to tf +iu:l8fos3khiv7t. he n side, then diode is said to be

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A simple junction trp hi,gsuo* fv) ,)b,lbansistor consists of three semiconductor sections consisting bl,*,ob,shi) u pfgv)of

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical oscillator has a moment of sshz2j;cw/r0inertia of $7.73 \times 10^{-45} \; kg \cdot m^{2}$. What is the rotational energy in the quantum state characterized by L = 2?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic molecule has kl0 nr+4*gz ,p(e* oi:c:v wxowyyuh0 $2.6 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 1 quantum state?

Correct Answer:    
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Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic molecule has yxy 0(ktucj68ty8mrri;d+:g $18 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 0 quantum state?

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Estimate the rotational energy ( owuah )*5cfwo j90jo-in eV) for a diatomic hydrogen molecule in the L = 2 quantum state. (The equilibrium separation for the H2 9-ocww j)j 5hof0oa*u molecule is 0.075 nm.)

Correct Answer:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic molecule is vibrating in the v = 1 /j1bf c(gr.ky quantum state with a frequency of .1y (cbgkrf/j $2.0 \times 10^{13} \; Hz$. What is the energy of vibration?

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The energy gap between the lwi c31r/ 5(kmo dpm9q;oe zfi-r;j/no ly*,hvalence and conduction bands in a certain semiconductor is 1.25 eV. What is the threshold wavelength for optwq-kionojoi5(c,/lz;fr; /lmh*epm19r d3 yical absorption in this substance?

Correct Answer:    
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    Total:27 mks Pass:16.2 mks Duration:Unlimited
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