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 abn9 up)8im hnu,jc)g9 nwz/)y ll electromagnetism 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 produced by7+dj xoc 7 3i;lahxa5u 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 fielz9dj caw1nypd,si+ge ;;1nk-d 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 vacu61z7 5xaf vzv 4ta -aqt;4qo njj5ps+vk7rx(rum 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 velovd(6y.7xh xys hq:6a ycity of 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 thr8/ 7az ssws0 tdc+vml;ough

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 )iukmf0r hy4+dl c+4o *1ncmdl4pez .field are found to decrease with distki44cy.lpn c0f+ 4d+ drm*o mhuz )1leance 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 t:ipl/o6 s vqg.raveling to the east. At one instant at a given point : ospv li/.6gqits $E$ 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 a p;i:3 1n mqtbi4;kcimntenna that is oriented vertically. What shou3i;bkmqnicp; i:1 4tmld be the orientation 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 are2hvjtr .)2ktf t3n3tf

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 n a +yez3 w3.bxbcbsp-so) ca(4ot 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 fromu1f s9 fzhxh 2by*/v.;cj0ysm

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 transpore a 0.l834 eamp8- ry3gyjbtxrts per unit time per unit area is thetgjb.rr0 4 pa- lye3x8a 8y3em

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 es*b an882/.s 7d vmacuurje4mxerted 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 list,*pbmljh0kqzbd1v *nb rw za- */;v.r s electromagnetic waves in order from longest to shortest wavelength?1jb /;nrk lw*mzvr0 had-v *q*bz p,.b

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 hq -v)aeoiyr2 *as a peak value of 2.0 V/m, what is the peak value of the ma iayroq2*ev -)gnetic 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 lighd:4r01zl7 u frwdy 0+hw* fgzut 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 92.95sg/v,5oe5dpt rr go00vyrdb vs 109o -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 siayu p-dxf +6py vp.+jnm p4;6fgnal transmitted at a frequency of 7.2 MHzpya+dm-u+4;66jn f pp fp v.xy?

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 carriwopc i1lnn. z035dbnb4b 1l1c er 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 microwave j41z uye2ppyc. ,ou4gs?

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 trav 7qi hh, b-ccz.(b dwmnaz74t4el 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 n 4/,a, nwxkzqo fh4r)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 th.6yn :apb ql+se signal from a local radio station 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 (thzw y7b.qvw4bcj . hxm6i/r ,5ye 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 indicates t*p ,( kizbs): vy6kmi2rda::mqbcpw3hat a transmitted pulse return as an echo in 20 ms after transmission. How far away is*dk6(i2rc:3 bp:mb k):zqp, as wmiv y 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 atmo qqcck (p4p2k+sphere) at a rate of abou4kq p2c+ckp q(t $1350 \; W/m^{2}$. 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 a rater,wli ; /jt h-3z/xnto of abo-r wn/j 3xoz/;t, ltihut $1350 \; W/m^{2}$. 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 electricexy1+dp 8 3mfc field at a distance 2.5 m from a 100-W lif 31 x8p+cdmeyght 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 of 8awfm)s0x 0d nthe magnetic field at a distance 2.5 m from a 100-W light bul8 nd0 mw0a)sfxb?

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 nar /mf3(aqr6mc erow beam 2.00 mm in diameter. What is the average (rms) value of the electri( /c3eam6fq mrc 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 diam8om gz ; xa*+xv2mvwfzz)u1;jeter. What is the average (rms) value of the magnetic x xo)jg8f *+zv v;az2ummw;1z 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 transport d7latn39a iumnp-j*u8fhx*0 ed 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 tha:xzw n-3 vtf;kt 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, 2024-11-21 23:27 , Processed in 0.235922 second(s), 91 queries , Redis On.