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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 causqmo/8* ,dab eued by

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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Ionic bonding is causedgvdj+ qvdj;6bz5rj3: by

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The bond energy for a hydrogen mole x8ftcjbg4 ( 00gyecm2cule is

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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Van der Waals bonding is caused ) gh/rlmoy g;8:f4c 1+-chdmgg/ kpoy by

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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In general, which of the following is+ dedrfgf t9q m8y.9*e 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 ynzb ,c/lna1 q1o/: wqis the weakest 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 betw/ m5ld;*fa79mx a xlfseen adjacen5fa ;d xfx/ mm9sll7*at energy levels

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical rotator in the L 0x01aodu,nkh/lo9 1z)opd9f /ueu df.rh i(j= 1 quantum state has energy E. The same rotator in the d if,0/(rj 1okld9.nzh uo)u/ o xp01 uafe9hdL = 2 quantum state will have energy

Correct Answer:    
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Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In its lowest quantum state, the energy of a diatomic harmonic oscillator is7iivz/ blq- g;

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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  For a diatomic quantum mechanical vibrator, the energy d)ggvaae4) d ;mubuq*(ifference between adjacent quanagm dgqu )u(4b*)a e;vtum states

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Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In its lowest quantum st x i mg2juagoo9zl(jzeb/0 )++ate, a diatomic quantum mechanical rotator has a rotational enera zjlu+j0e9) /+zgmgxobio2 (gy of

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical vibrat(pfxj jk )2uy2 7cg-dtor in its ground state has energy E. This same v27k dft-(j)pxgyucj 2 ibrator in its third state has energy

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Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Metallic bonding is ii8(h1c-hhyf caused by

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Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a good conductor, the highest energy band containing electr1hqagigh 1,k 6ons is

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Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a good insulator, the hgvbm;o-7k;wtg ; g7 zaighest energy band containing electrons, called the va ;g7gmgbv a tokw7z;;-lence band, is

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An n-type semiconductorwbfjxv k*a+3mzm tq77 xjs v/5q78xo46a ts.i is produced by

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Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A p-type semiconductsam udq5 3yg204y*m pya.ib 1a 2wfy-tor is produced by

Correct Answer:    
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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a p-type semiconductov// z5vsuu2hwcv/ qt4r, a hole is

Correct Answer:    
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Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a voltage is applied across a p-type semiconduc-qm v fr o(h0(n;h(nmztor, the holes

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Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a battery is connected to a diode with the positive terxnwi2s -no-7e8hbr*iminal to the p side and the nb 7 siieonnwr*-2h-x8 egative terminal to the 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 transistor consists of three semio9 nk.q nw oz e58rq7g52vwh1dconductor sections consisting enqw9.hko57 5vzwgn 1qr 82odof

Correct Answer:    
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Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical oftcik fc2ia3f zcz1+l i1k34+,gwj7p exn r 66scillator has a moment of inertia 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 ha u;9owvc4a;;,v sw dvys $2.6 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 1 quantum state?

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic molecule g 8, su+jaaw/fhas $18 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 0 quantum state?

Correct Answer:    
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Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Estimate the rotational e crzqk5 0n,xo.2799fzozy u5q v 8vf.ctt+siunergy (in eV) for a diatomic hydrogen molecule in the L = 2 quantum state. (The equilibrium separati9. zo7uocfxzvsvcqkf r +8,5iq .092zu ntt 5yon for the H2 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 quantum state witc lfye96p8pj ;7dehhs2p06 ir h a frequency of 9;dp6fh7s6jec0 hiyr8l2 ppe$2.0 \times 10^{13} \; Hz$. What is the energy of vibration?

Correct Answer:    
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Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The energy gap between the valence and conduction bands in a cerje )d,z ws)q,d u87 pt ib(9avzu78bcetain semiconductor is 1.25 eV. What is tcb w au8e, tdp9zz) ,uje)q(d7isv 78bhe threshold wavelength for optical absorption in this substance?

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