题库网 (tiku.one)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:Physics Unit32: Elementary Particles



 作者: admin发布日期: 2023-05-02 09:40   总分: 43分  得分: _____________

答题人: 匿名未登录  开始时间: 23年05月02日 09:40  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the cyclotron frequency of a chargedj k7/vmykj5ce6it6c2 particle if its speed doubleyvc76t/c 25mjj i e6kks?

参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the cyclotron frequency of a char4if/hw5 h)ytt ged particle if the radius of its path double) th/w t4if5yhs?

参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Feynman diagram shows two electrons approachyuf ts kk1gzds)loq x0(66:7n ing each other, interacting, and then leavi f u kls)nd:gytq701(xo6ks6z ng each other. What particle is being exchanged during the interaction?


参考答案:    

标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Feynman diagram shows t7 id 1:hhn bg8mwv2*yghe weak interaction of a neutrino ($\nu$) and a neutron ($n$), mediated by a $W+$ particle. The interaction produces an electron ($e-$) and another particle. What is the other particle?


参考答案:    

标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A positively charged electr)u7 ;zzko j/bjon is

参考答案:    

标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What effect does an increase in the mass of the virtual exchange particle have o,+bnnfqg 1,g on the range of the force it mediatesg+,o g,1q nbnf?

参考答案:    

标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An exchange particle for the weak force d3u b.qde9o2di26p 2lb ybs)wis the

参考答案:    

标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The exchange particles for the weak force are very massi ja -7x)wi-ekr,i e)gfve (about 100 times as massiveia)iw7- )eg ke-,fjxr as a proton). This would lead one to expect that the weak force would

参考答案:    

标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The exchange particle for qyy30extc7x 4huarks is called

参考答案:    

标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A particle that travels at the speed of mse 2(t()l8w *lmgc zmlight

参考答案:    

标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One reason a photon could not create an odd number si-4 xp9)h-8egaq c,k6ecve4 lythh6nq8y4 wof electrons and positrons is that such a p)-h4eikhpy yx l 6-tneh w4q84cge saq96 v,c8rocess would

参考答案:    

标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Is the following decay permissible 2(o8yn ,bicdl? $\Sigma^+ \rightarrow \Lambda^{\circ} \;+\; \pi^+$

参考答案:    

标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Is the following decay allowwli eas;j4a44gwvv 2 g 7g2c;led? $\Sigma^+ \rightarrow p \;+\; \pi^+$

参考答案:    

标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Is the following decay allowed?z 6 ew yzw.k+9+u-uizra+,rek $\pi^{\circ} \rightarrow \mu^+ \;+\; \nu_{\mu}$

参考答案:    

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The neutrino has

参考答案:    

标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is an example mbq8ry)j u;y6e . y tols6aq.2of

参考答案:    

标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton is an example ofbjvzpeg(pu ; 8f) * qk.usdru6n6s(hfnf5x:.

参考答案:    

标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A neutron is an example o t5hbc5gc8i(.jfn (tb f

参考答案:    

标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A photon is an examplj(mx ;peke; . /epmqi;e of

参考答案:    

标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Particles that do not interact via the strong force but do interact via m h2o5po hzyog )gzb. 8tu5-3sthe weak nuclear force (and presumably by 5sohyboz-hz go u2t )m8gp 35.the much weaker gravitation force) are called

参考答案:    

标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Hadrons are divided into two yi*ta w :jh0 2qy b2tu-gj8*n4 x;xmiasubgroups called

参考答案:    

标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A quark is

参考答案:    

标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the quark compo7th ijnid8 zn y)ao/( sbg47/v( mcry/sition of a $\Lambda^{\circ}$?

参考答案:    

标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A distinctive feature of ogv*ln6d-*n 1xoi0dqj.q r3 i9jlm 5a6 fhw(gquarks is that they

参考答案:    

标记此题
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The charge of some quarks and aj:q3c*u;k(0l7egiql guar l) ntiquarks is

参考答案:    

标记此题
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a quark emits or absorbs a gluon,iht ptjo,( ;0 zfy6k1p the quark changes

参考答案:    

标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of types of quarks cxzw3g)h-r4cis

参考答案:    

标记此题
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following7 hz+b( lqipi4 is not considered to be one of the four fundamental forces plh4zibi (7q+?

参考答案:    

标记此题
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A significant step in "3ft fkte4i(d2y yww63 unifying" the forces of nature was the discovery that two of the so-called fundamental forces were two parts off6kwet4y tidw( y323 f a single force. The two forces that were so unified were

参考答案:    

标记此题
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The grand unified theory (GUT) is a sought-after model that would unify th +tl9 +:lj1s3nmh xpcpree of the four forces of nature. Which force is the t31ch x:+j9n lmp+pl sone it would not include?

参考答案:    

标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wavelength for a bl3ubu;qo4 alvx1d2 .4 ue6oggdgi4 t5eam of 1.4 GeV electrons?

参考答案:    

标记此题
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cyclotron operates at 10 MHz. What magneti/zj-xjc ag :)6itiut+c field is needed to accelerate prottui i:+zactxj -6 gj/)ons?

参考答案:    

标记此题
33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cyclotron of radius 0.25 m accelerates protons in a 1.7-T magnetic fielpb/8 /jabho*x d. What is the frequency for the applied alternating voltage?pb/8 x joh*ab/

参考答案:    

标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cyclotron of radius 0.0bpb;v wres dt*v0 a69lcl;o 16pw ac.25 m accelerates protons in a 1.7-T magnetic field. What is the kinetic energy of the protons when they leae*ts6v w0bca9. l1dpo0;v ;cawpl6br ve the cyclotron?

参考答案:    

标记此题
35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A deuteron has the same charge as a proton but approximately kdk i4bkg)g (40xra sk8sfm-; twice the proton mass. Suppose deuterons are being accelerated in a cyclotron in an orbit of radius 75 cm at a frequency of 8.0 Mhz. What)g4f-k0kags i( mxbk sr8k ;d4 magnetic field is needed?

参考答案:    

标记此题
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Suppose you were to try to create a protodw.mwfx0 ak q 4o.hm:,n-antiproton pair by annihilation of a very high energy photon. The proton and the anti-proton have the same masses, but opposite charges. What energy photon wa0xk,:d. mmqfw4.o h would be required?

参考答案:    

标记此题
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a positronium atom (electron +ktx082/gfg fbo og6hf; +tn6k positron) decays, it emits two photons. What are the energieso2fxtg;8nkbg 0o f6k6t+f/ hg of the photons?

参考答案:    

标记此题
38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pe meson has a mass of 264 times that of an electron. What is the ranxs /j w2r;b3cjrjpjx, 7moux/e( y5u0ge of the force mediated by thissj,r; 52o/(xxrjpj/e w yjb0 u c7u3xm particle?

参考答案:    

标记此题
39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the range d:r 2 4yu-wkmqv.n 4 8ss8yldsat;5auof a hypothetical force with the proton as the virtual exchange particl;.8un sd-vt 82wr4 aqdsl4yyasu:mk5 e.

参考答案:    

标记此题
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Identify the missing partici)cv +vsvnooljep3:py 9,4 dtj 0tg5 )le in the following reaction.
$\pi^- \;+\; p \rightarrow \pi^- \;+\; \pi^- \;+\; \pi^+ \;+\; \;\;\;\;\;\;$ ?

参考答案:    

标记此题
41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Identify the missing particle in the f67zrb eal 5n(hollowing reaction. $\pi^+ \rightarrow \mu^+ \;+\; \;\;\;\;\;\;$ ?

参考答案:    

标记此题
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Identify the missing particlkby;v11dr4 q fe in the following reaction. $\pi^+ \;+\; \Lambda^{\circ} \rightarrow \Sigma^+ \;+\; \;\;\;\;\;\;$ ?

参考答案:    

标记此题
43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of quarks in a nw: yyzbif)x334rn1xdeuteron ($^2 H$) is

参考答案:    

  • :
  • 总分:43分 及格:25.8分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题,此次习题练习共有 43 道题
    本系统支持习题练习,作业与考试三大模式,作业考试自动评分,成绩排序一键导出,可设定动态变量同一试卷千人千题
    如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

    浏览记录|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

    GMT+8, 2025-4-4 06:49 , Processed in 0.546108 second(s), 108 queries , Redis On.