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 Unit22: Electromagnetic Waves



 作者: admin   总分: 35分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月28日 10:07  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  
  The basic equations for all electromagnetism .ez1rx i-h-p lb l6e/zwere developed by

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  
  An electric field is produced by a/t;kbv +e3cbr

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  
  A changing electric field pe/bv.n-+l kr* zwfq1 will produce a

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  
  All electromagnetic waves travel through a vac62pd ii8itiagd xrb 23a r72:wuum at

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  
  In a vacuum, the velocity of all electrom y9nlv:w/ t8lmagnetic waves

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  
  Electromagnetic waves cjy4 i ctm)+ x6v4lqqd7e(j+ufan travel through

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  
  The strength of both the electric and magnetic fields in the radiation field c,z 6y4og(q s,dnf- kaqf8 l2,w*x ycpare found to d6aqn 2q lyc,4oc8fpw,* fsxd,kzy(- gecrease with distance as

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 $E$ and $B$ fields in electromagnetic waves are oriented

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  
  An electromagnetic wave is trave giaqdrz ri f1m-/ j-a;z;s-rb++*ltn ling to the east. At one instant at a given poinfqzjt g mar--dr+/-*n 1sz; ii+ba ;rlt its $E$ vector points straight up. What is the direction of its $B$ vector?

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  
  An electromagnetic wave is radiated by a straight wire antenenbjvz+de -a/b-rg2nxum id1*z-91 t na that is oriented vertically. What should be the orientaz-xdbrv diegaj+29z*1/- n1n-b emtu tion of a straight wire receiving antenna? It should be placed

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  
  Electromagnetic waves areoxw fvd. ze,s2hw1y2to- g 7j-

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  
  Of the following, which is ,4,pxu ewvq+t not electromagnetic in nature?

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  
  Visible light ranges in wavelength 3; p somupu1*wfrom

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  
  The energy an electromagnetic wave transports per hl6uwmyo,gx ; t+4- uk9u a9 s:n(fbnxunit time per unit area is the,4knu- (xm9 s9wfaxb:h6gyl;uo tn+u

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 force per unit area exerte .f-b 7ix3hyzad by an electromagnetic wave is called the

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  
  Which of the following correctly lists hy3(q((x:zyek- , wnhxs (tzyelectromagnetic waves in order from longest q zyzyx xky-hn:w(th ( ,e3((sto shortest wavelength?

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  
  If the electric field i2b:yd9z g9vq kdt)8 hnn an EM wave has a peak value of 2.0 V/m, what is the peak value of g8dqt v 9bzdn2h)ky9: the magnetic field?

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  
  What is the wavelength of li5zwl 3nj15j3fv 0 uhljght waves if their frequency is $5.0 \times 10^{14} \; Hz$?

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  
  What is the wavelength of a 92m,y/x u /yiz3t.9-MHz radio wave?

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  
  What is the wavelength of a radio wave signal m15a- qgi3 ea6 icbhd4transmitted at a frequency of 7.2 MHz?4 5dbec mga-iqa3 6h1i

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  
  What is the wavelength for the carriezl5xq,hu hnmq2u: (t+r wave in the station WBRN 1460?

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  
  What is the frequency of 20 mm mic5wae;u.lu-7 x wkacwq/.fps a* ju16hrowaves?

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  
  How far does light travel b (xp:hze0tjv(s wv.8in 1.0 ms?

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  
  How long does it take light to travel)x3h jr -mm-xy 1.0 m?

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  
  How long does it take the signal from a local radio station tor- mf19)q5aeahgx)ho travel 20 miles?

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  
  How far is a light year (t 8g *g8wuntb7lhe distance light travels in a year)?

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  
  A radar receiver indica;v+c e,o6swdr x6t:jrtes that a transmitted pulse return as an echo in 20 ms afted;vj, w66trc +xeors :r transmission. How far away is the reflecting object?

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  
  Radiation from the Sun reaches the Earth (above the atmos v7 rd+xg+1 j:qe2jolfphere) at a rate of about e7volf21d:rq+x jg+ j$1350 \; W/m^{2}$. Assume that this is a single EM wave and calculate the maximum value of the electric field.

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  
  Radiation from the S+;+cn osx7k lvun reaches the Earth (above the atmosphere) at a rate of abou ;s+7knlo vx+ct $1350 \; W/m^{2}$. Assume that this is a single EM wave and calculate the maximum value of the magnetic field.

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  
  What is the maximum value of the electric wple7n2x nl4yt6)) j xo (vz.afield at a distance 2.5 m from a 100-W light w 6yl vp)n xx2e.anoz4(7)tjlbulb?

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 maximum value oxlsjsu hs- i 7vkf )4g:j.ym5tsl61 *ff the magnetic field at a distance 2.5 m from a 100-W .h1k fl-xyssv6 jgf7t5ij)ssu:4m*l light bulb?

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 15.0-mW laser puts out a narrow beam 2.00 mm in diameter. What is the w7o. -sdxkc:k average (rms) value of the .okx s -wc7:dkelectric field?

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 15.0-mW laser puts out a narrow beam 2.00 mm in diameter. Whaqxq d9)rz: qeb01szh.hiio4)t is the average (rms) value of hs :qi4.9zbxe1 qh)drqoi)z0 the magnetic field?

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  
  How much energy is transportedivac1gq 4 mh-: across a $1.00 \; cm^{2}$ area per hour by an EM wave whose electric field has an rms strength of 21.5 V/m?

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  
  Estimate the average power output of the Sun, given that about o4a*d rmv+gnbevx/af (0 di0($1350 \; W/m^{2}$ reaches the upper atmosphere of the Earth. The distance from the Sun to the Earth is $1.5 \times 10^{11} \; m$.

参考答案:    

  • :
  • 总分:35分 及格:21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 35 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, 2024-11-21 21:46 , Processed in 0.211890 second(s), 91 queries , Redis On.