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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 beum7l++h:n+ ze,vxesaa18sx q5 kof x41ocz ;y

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Ionic bonding is caused byqf-za:i5d3 t c l3*y d3 sr(qdurya;e)

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The bond energy for a hydrogen ogs: 5w ki(za5w:hr: umolecule is

Correct Answer:    
Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Van der Waals bonding is causft1*c :qw+jz ied by

Correct Answer:    
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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 stronli 25w./znj2kc52 wr e+liyoc gest bond?

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Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In general, which of the s),5.v lc vfv(n1iun gfollowing 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 di:cg) 1q vsndz43ev et*fference between adjacent energy levqvts )z4cdv3 *g e1ne:els

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical rw7o*z)ujg qkuc( ,n y/otator in the L = 1 quantum state has energy E. The sam jz,qc7uwyn*/ok (g )ue rotator in the L = 2 quantum state will have energy

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Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In its lowest quantum state, sqvq5-z/gf,mygfk( y2+ 5ylhthe energy of a diatomic harmonic oscillator is

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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  For a diatomic quantum mecha6q3,dp zyxprz( /ja,b nical vibrator, the energy difference between adjacentxpy(/36bqp,d zz , jra quantum 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 kx g5-0y nomk7ug*c95pru bj7rotator has a rotational energubg o95r0nj7m*g cx5kyu-7p k y of

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical vibrator in its ground state has energy E. Thisak-6 5w4q udmf same vibrator in its third sta 65q kawumd-4fte has energy

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Metallic bonding is cgxvl 5 )cgsi*3w-iv 0yaused 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 electron7uoaxp1qcj6e: yqu64x 6ze, js is

Correct Answer:    
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Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a good insulator, the highest energy .d/.xrg; cjtvband containing electrons, called the vav;.xt/j.rgc dlence band, is

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An n-type semiconductor is produced wnmtie2 mn+1 8by

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Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A p-type semiconductorblplgk 8rxw bd-,p09cj6 -7jf is produced by

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a p-type semiconductom xuw-d/f2mj, r, a hole is

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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 semiconducpv t hg)kr8fx8vc- ;:wtor, the holes

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a battery is connected to a di( 5 pe.pl, a2su(w;-yigszdc 7,qktik ode with the positive terminal to the p side and the negative terminal tdks q2z7(t,ly;s ag(kwpu5ie p c,i-.o 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 of7 2rn:ptycajy12x g0i three semiconductor sections consisting oftncyxi1 2pgj2yra : 07

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A diatomic quantum mechanical oscillator has a moment of iyh roj5d+lbcrb2( 3y ,prxo84k4( j3zy te3bsnertia 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 )a.3,wvmq8l r4gdfme$2.6 \times 10^{-5} \; eV$ 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 has yr+,gqzs(e7d $18 \times 10^{-5} \; eV$ 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 diatomiwp 2y,0 j1ttjoy +yjt:c hydrogen molecule in the L = 2 quantum state. (The equilibrium separation for the2+ywto0 : yt,jp yjj1t 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 i.czxa 5xn5.rxyoes3mg8uwy p- ;v6t. s vibrating in the v = 1 quantum state with a frequency of x8vy5;x5yx.z.3owrg .c-nsua 6pmet $2.0 \times 10^{13} \; Hz$. 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 conduction bands in a ce2-s rdpitx.pegzopz 6) o*k)2 rtain semiconductor is 1.25 eV. What is the threshold wavelength for optical absorptiix2p.p*pog zzs)-d)et26kro on in this substance?

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