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 were developcpp4g+m n p7xn0:pgl *ed 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 produc5k qvd:p)w1wf sg (f4 (c(qowled 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 pr)ufsi3s-m ay* xpm0-coduce 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 axxs,(, eow5t*rk:h q9o*z) n4f bqvmi 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 all electromagneti ey wtsu5dlz/1q7q: pe+3ep(ec 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 throi ecq,fl 0w/lh/-zqp1ugh

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 y7 z9v9swmrn.in the radiation field are found to decrease with n z .7rvymw9s9distance 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 tokhz8 2n9 6eblx the east. At one instant at a given poin9n86 kb2lhex zt 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 sto26ndp-a:jhs4h07 n fz phx1qraight wire antenna that is oriented vertically. What should be the orientation of a straight wire receiving antenna? It shpdn0 -:x 7 p szjh1o24h6fhanqould 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 f7* 1y(vc+(nwf lzwhh 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 e(gr jv9cro dt bkrp/gnsm76s 1)g78-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 waveli/i /g 2svlsgq::*go rength from

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 transzvw0 n va5b9m3b 0 z9bop*ti*lports per unit time per unit area is thebb3 *nvwa9iz lzpv00tb 95*mo

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 at,2bc+6j , 9eqxo*73spljrla ow * ,qgksl6qh n 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 li1b h7g. g/fpbos ey .wz9m+mf67 *,wjxrgc7 jbsts electromagnetic waves in order from longest to shfhg wb.x7fs*17oyje .g zr6,7 cbp9m/+ bmgwjortest 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 in9( h7zqaor3ed 1bc3fh an EM wave has a peak value of 2.0 V/m, what is the peak value of the magnz r3fqhchdao b 91(37eetic 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 light waves if their 8-qm qvqx-9fhfrequency 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 92.9-MHztu 8ofvv5ya )1p*in p) 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 .59glx:(vv*52c u ,jdzuf bjme, zcph signal transmitted at a frequency of 7.2 MHz .umvlcep,9fv*:5x2 u5j zdbjchz(,g?

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 *vs;4r /et 9cryb-ktsthe 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 2b6y.fmhu v )j+k.a9 dx0 mm 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 travel mv 7cvodp/q 13in 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 lighds6 x+f(ro6z :gyqs:lt to 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 stati+un38ku v ozp9on to 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 (the distance lighseps6 vtc9roa+f ;;2y t 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 e)bjk3zfshg wv,n2)dbb + 2 5apulse return as an echo in 20 ms akb g3a,fzw )2s)+b2ejhvdb5nfter 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 atmosphere) at a ray ugzpb4 4+:z :w:/1crq yacrvte of about : wa/gz1r4q4cprbcy :+y :zuv $1350 \; W/m^{2}$. 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 atmosphere) at adytt*-.6s1tp77l r 9t aeo prb rate of abouytb rl9pttp-d s* a6r71t7e.ot $1350 \; W/m^{2}$. 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 :8n;p v,,oi8bkzffvq field at a distance 2.5 m from a 100-Wo ,nz:f8v,k 8 fb;viqp light bulb?

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 ofap;g6mubno+v 6-seylg*)t k+ the magnetic field at a distance 2.5 m from a 100-W limb*6lag6e s- )g++uk; vytno pght 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 diamet3v-g kdccg ,r+er. What is the average (rms) value of the ele-c3dg,k vrc +gctric 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 ng2* ;b u6cezqi7x0:0 um7zt rk -zwrcgarrow beam 2.00 mm in diameter. What is the average (rms) value of the ma7 7m-cbweiqrz; k00zu *gxzru 26c:gtgnetic 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 transportedt (3gqq3 oeh . 7.dufaozp)eo7 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, give itg5zox- zfk y d*xt3m0gg4+7n that about $1350 \; W/m^{2}$ 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, 2025-7-2 09:11 , Processed in 0.283510 second(s), 92 queries , Redis On.