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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 bx7w1sjih1lzm hs7)* gy

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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Ionic bonding is causen-6 lp,, ay:jcazjkp (d by

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The bond energy for a hydrogen molecule 5deiu v p 4iur0tdg3mka v1:7iovtub57,.;x b is

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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Van der Waals bonding is cafwxf vz f,1. rnlxjezrx8kv/v62)+c2used by

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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In general, which of the following i;o41ow(avto x:/fkb 7wi m5-lu+1i)h ds phmes the strongest bond?

Correct Answer:    
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Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In general, which ofo;1l g 6mdq,cp the following 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 differf v, 0z 5wj-n;kf2o7sdvjol,yence between adjacent enyofjdk,vn- 52 vws;jzol70 ,fergy levels

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical rotg(9wg*zjq+r-c: yazi ator in the L = 1 quantum state has energy E. The same rot +ca:r9jzw*iq-(gyzg ator in the L = 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 stayyu86 ,y ey+op3f 2dcqte, the energy of a diatomic harmonic oscillator is

Correct Answer:    
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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  For a diatomic quant 07bzve gp;2)xlb-) uhup,aemum mechanical vibrator, the energy difference between adjacent quantum statuepb,aumvh)x02lepg; 7zb- )es

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Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In its lowest quantum state, aii1y4da ; fcn:m:efh. diatomic quantum mechanical rotator has a rotational energi 4afydmen ;1ch.fi::y 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 ground state has enerl(4 )m qbd;hz xk fdg44qr0/g7diy- xwgy E. This same vibrator in its thdgzw40qxgl y7;4iq dbmdr/k4f- ) (xh ird state has energy

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Metallic bonding is cause( .rl:;s vhw6y xati1bd 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 energy band containing elec 3 nwov- *m9oxt*mqm1etrons is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a good insulator,pz 6) s)e,un.bfsia2l the highest energy band containing electrons, called the valence band, is2 s,)i ps.zb)nfa6uel

Correct Answer:    
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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An n-type semiconductor is)o8-xdzq h9z( qh3d ed produced by

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A p-type semiconductor is produced bmw+tzo(qnh 6/gap;y- y

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a p-type semiconducto ad 8x7) i60wun-u .vfixxo4ptr, a hole is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a voltage is applieturq cuuu7 ec73m; -c*3szxu;d across a p-type semiconductor, 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 terminal to thgr1v67jfi+sxr g zy6 3e p side and the neg3y+ij r6grxz 6v1f7gs ative 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 semiconductoro0 ib.khyl5-43qr gy5nmd )o k sections consisting 034klogyomb5kq. rydi)5h -nof

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical oscsyq 4/tqaz 76am8leb:illator 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 tj)cqr0 *vfd *8;cbad kg fl(m1,e-xxhas $2.6 \times 10^{-5} \; eV$ 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 h ol e+r854s g1v( b/eukdh glaf;(pd4oas $18 \times 10^{-5} \; eV$ 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 (in eV) for a diatomiuwc)2 hi2s kn*c hydrogen molecule in the L = 2 quant iwh2*2cu)n ksum state. (The equilibrium separation for the H2 molecule is 0.075 nm.)

Correct Answer:    
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Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic molecule is vibrating in the v = 1 quantum state win 4* uiod7:kxris/z mi3jx+ :jth a frequency of d zoxj:m7: r4jnuixi3+i/* sk$2.0 \times 10^{13} \; Hz$. 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 valence and conduct(4ajdmuefme 2 fz(a g5(gxsm42+xwj7 ion bands in a certain semiconductwge2 jf(24f(xg4e a5dms j(uazmx7m+ or is 1.25 eV. What is 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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