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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 causedqi0*1di75o5j dzce(rnh g /8beil )bt by

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Ionic bonding is caused byg c 1i(8sd;o hp3lh/ji

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 molecule isk4 (nvw)+tprlhg f2jo fhj:6ix5 )zw 1

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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Van der Waals bonding is causedsow t,:*16 vbcenb9mc 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 the strsbjdg sh68* g8ongest bond?

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Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In general, which of the follgfiw 9qhig6tg+yh1o q9+fyx 9p/dm70owing is 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 ba 8d/uc -irz;ug 78ug outsb88etween adjacent energgbr8d u8i7usog8 8; /-tuza cuy 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 = 1 quantum st m cj04ydh6o,j:ck y-tate has energy E. The same rotator in the L = 2 quantum state w,6 4c:k0do mcj j-htyyill have energy

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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 oscillato/s/lergm 29jb r is

Correct Answer:    
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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  For a diatomic quanto/c pv6yn9ik4 um mechanical vibrator, the energy difference between adjacent qu4iov/ 6 nkpy9cantum states

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Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In its lowest quantum state, a diatomic quantum mechanical rotator has a rotati h4oa+bf2b4qe onal eneq 4ho24+afe bbrgy of

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical vibrator in its g m3q0u xgxm 2;2lx:f(7 ksemgdround state has energy E. This same vibrator in it lgm;:x7ex20sfmdmx g(3uq 2ks third state has energy

Correct Answer:    
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Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Metallic bonding is caused x*. 0em ezi2cqby

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 energy band contai)y;p)dzyc8h 6edz0lc ning electrons is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a good insulator, the highest energy band containing +jx2pszl1snwsoth 3 nnh(;r 3a0w.n52v5 fa relectrons, called the valence banf sw15 z 3;nlthssa.0+rj3h(xan wo 5n2vpr2nd, is

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An n-type semiconductor is proq kp9p6exh3nv/l z.0rdt*jx .duced by

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Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A p-type semiconductowdu;.+u.6a*lgh feq,ac c 4fkr is produced by

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a p-type semiconductor,l7 y *a;l/mpt+/ znpyd a 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 sl(a) lv-z b,gf (xg7zqemiconductor, the holes

Correct Answer:    
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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 po 8wzu uk31q/nvsitive terminal to the p side and the negative terminal to th18 /uwvz3qku ne 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 trans1igpd:2z btli+ ,f m;tistor consists of three semiconductor sections consisting o p i:1;bl dt,iftg+zm2f

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical oscillator has a moment of 4;od l0cgakqm;8a+ym 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 hao;hcpu4pr z 40s $2.6 \times 10^{-5} \; eV$ 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 hast2 ,8ayfn,rj1zdu7 f29plg f2cr2 k l1as6 fto $18 \times 10^{-5} \; eV$ 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 energy (in eV) for a diatomic hydrogen molecule in the Lb 8t7egh 2wg6w = 2 quantum state. (The equilibrium separation for e8b7th gg6ww2the 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 thenns*n5 ,l2+2kradpo g v = 1 quantum state with a frequency of n5 ao2pkg2s ,lrnd+n*$2.0 \times 10^{13} \; Hz$. 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 ind)ypuw9 u2(a 6ew5vza u,p8 ua a certain semiconductor is 1.25 eV. What d2aypw ,v) w5 uepz8a9u6(uuais the 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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