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 electromagnetuzh1mkapis o m f(3y50r-.d 3yfuppup 21mz +2ism were 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 produckcc0-faz pt 88ed by a

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 will proyiibe1finu.j4z. 1 zbh:7hrt-7 qfm6 duce 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 -tv a5q:r y b)vpe7k9qtravel through a vacuum 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 /r)unq14jk sl all electromagnetic 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 can travel thrg a)w -tauzy+ej:yy 8t)j )vt5,b xb4zough

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 magpqpvb6n.hw5-x x 70sqlsia/ 4 netic fields in the radiation field are found to decrease with distancvqspnl a5- .s 6 wq4/bxxphi70e 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 traveling to the east. At one instant at a qkpkz)v2ea u6f c x255d dyg)*given poinkcf 5dudg)x2q v6*epay)52zkt 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 by5a exl9 h9ibo; a straight wire antenna that is oriented vertically. What should be the orientation of a straight wire rece 9o;i9a5xeh lbiving 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 wavew*,y -.+ p gfghk.gj(x jxf/nbs are

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 not electromaex8yyq 116nj3wy2wa :efbg -kgnetic 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 nv+2 g q8p-bsj6pg5vrfrom

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 unit time per uhck9jl81 m qm(.fj nuy:*t9ylnit area is the*uf:ycjm9.nyq t9k hl1(8mj l

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 exerted by an electromagnetic wave i gp:m x/ c*;+6 7lotji5mlrezqs 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 electromagnetic waves ish4rp -zfr9v(n order from longest-rp(4fsh 9vzr to 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 in an EM wave has ay9xda y,vy,l 6h/,v l7ju(cmq peak value of 2.0 V/m, what is the peak value of the magnetv7 xl,9q(ym/y6,cudv jl, yahic 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 9uj qiic/f cky58lt28 of light 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 waveleng+i(yd.;c x p6w xxgeq)th of a 92.9-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 transmit.g,b7o;08z wl lctpdhted at a frequency of 7.2 MHzt0w gzl l;.dho7 8c,bp?

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 th3 m t++tcfsfx:e carrier 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 g8 be,w5ckief5/9 r zamm microwaves?

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 tak.l 9y t4xd *6jg+zrt3oh( ozravel in 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 t4fl7,yg.hotzi/h9clez8 sfb- 4 sg7do travel 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 to travel 20 mie4ed y: - j)k2rzmyfm*+u -;-xgeq rdyles?

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 (the fd0jr82 w i8hxdistance 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 indicates that a transmitted pu wx8u 2(8(oi7hk:x vd k4yaocclse return as an echo in 20 ms after transmission. How far away is the reflecting objecx(kki wy u( aocc28:xhvod784 t?

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 atmosphere) at alr iv5dujte;6 08 lc:q rate of abov5tld8cju; 0:le6 r qiut $1350 \; W/m^{2}$. 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 Sun reaches the Earth (above the atmosphuxyjjmp552 f0 ere) at a rate of about2 jx0pymfj5 5u $1350 \; W/m^{2}$. 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 field at a distance 2.5)iu,ypf0,+:s vj )tf infblhj8 a8rh , m from a 100-W light bul)hftru s8ynv,h ,pjl,) ifaji:b8 +0 fb?

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 of the magnetic field atmx;zc( e7 ultsg(w; 6t a distance 2.5 m from a 100-W light t(mxte uzgslc;6(w7 ; 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 nauua+ 93(zhavsry +u1r rrow beam 2.00 mm in diameter. What is the average (rms) valu+(9h ryusuvaa z1 u3+re of the electric 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 2g;w g5. /nu.esrpqfz- .00 mm in diameter. What is the average (rms) value of the magnetic f5 -.ez /q w.ggfnsrup;ield?

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 transported acroslwo 7xd1km59z ipj,054uayv+r-m qt q s 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 abl:33ik6ziq uih tv43uout $1350 \; W/m^{2}$ 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 21:55 , Processed in 0.254932 second(s), 91 queries , Redis On.