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: 游客未登录  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 devebu*7j.bb6 mcfloped 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 b-:: npp0qpa sxy 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 f ;n3rc + (:im;4qufg.wjcshmeield 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 vacuum a)cx z:aj )s/.u6,wn ou*bqf ert

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 velocit;-t4fw0 jb47s/c+hp+ v fos msi zvj.py 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 5 jv6x)5lddu yj9n ,hhtravel 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*hh-+dfqjhizy c zoq4e *bj(8, .f c-s fields in the radiation field are fc * bjf8d*.y-(+foqh qche4-ijz sh, zound to decrease 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 traveling to the east. At onx28kl, p t(t/8rnzfbs e instant at a given point itsp zb82fn t8l,/x(tk sr $E$ 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 strain.l0 )cw *g1z/pk.r.eowx ifl0jpqv0ght wire antenna that is oriented vertically. What should be the orientation of a straight wire receiving antenna? It should b0j) el 0/ovn*x rcw .iw0 .qpgz1fl.kpe 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 a:bihok: lgs)n(3 m( ctre

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 electromagnehvm5 5* w9aw-v-l*dcerd xd alzk/;c/tic 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 *p)8sz:rf 0hrv+ eczzwavelength 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 electromag. eivsc030isqym ga ;4netic wave transports per unit time per unit area is the sqcmv0s; 30.igi ey4a

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 by6ep *e 9q)m6b.y mdjr:egdz*1lnlp1s 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 electromagnetus97h40rdfjjs,a*q,w 2aiehe + np7 yic waves in order from longest to shortest wavelenghnpe w9y 0ed*j,f77iujqaas2rs+ ,4hth?

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 x6/uq i 2n)t.uordc5cin an EM wave has a peak value of 2.0 V/m, what is the peak value of the magneti/d.x6iq5u c)c u2nortc 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 waveqwc(e 5oc-n 6.u*jxv mgk;7 nepd..ses 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 om s,q bqmvvs7i2s6 0d0f 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 transmitj/g54i+a 75jhlkfrh6w uk ojs6 i1 +reted at a frequency of 7.2 MHzi6e4wj5o+j7 r5j ur+lsf1 ka/ hig6hk?

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 c1k5n rh+kw9vbz un89mzs1lct+c/s 2t arrier 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 i7gc;dd5i* gm 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 ttk(r;y2jm9u noz9 6tk *xmno, ravel 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 to trav +9n8s )4wyshq2y jgkdel 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 sibtu*8 *fs /pl h8dw*tzgnal 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 (the distance *2m1tchj 35zr wzbh+exbw h 4 ;ihvq/;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 pulse return as an ecuu/l0 j)mf xoh4lvbnygw8h fz9).p)6 ho in 20 ms after transmission. How far )x.voyp/j4 h9l)nl fm0fwugh8b6u)zaway 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 atr1e95f7if s.gt j:e atmosphere) at a rate of about 7 trsjt.fa f1ie9:g5e $1350 \; W/m^{2}$. 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 (jr)a -r 1xlp f/go74nr-zbes8n*n lg+ above the atmosphere) at a rate of about 7l4 xrrnzgn- /se8- fpgja+o1) lbr *n$1350 \; W/m^{2}$. 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.u:j )lej g d3c11d01mpme/zik5 m from a 100-W gepzld0 j ki1 /) d1mc3ue:m1jlight 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 the magneti 33t,5to qmq hsrd 579d: ex;.utwaukuc field at a distance 2.5 m from a 100-W 35m,;krodu t7u quath9x d.35t:wqse 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 avec9/*vg.n24nx ccc 0qnqps /perage (rms) value of the electri 4c/c/9qvpqgnnc. xc*se2pn0c 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. What is the avejjo/a dkb3 r01bh 9n7yrage (rms)903o jk1/n ab7bydr hj value of 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 tran5demo tj efo6ff,y;y4 b(r.7q sported 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 Scrw *id4/ w r*nv50i.cbf:fxs un, given 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
本平台(https://autodiscover.tiku.one/)支持练习,作业与考试(自动评分)三种模式,群组成绩统计排序导出,题目动态变量实现同卷千人千题
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|手机版首页|使用帮助|题库网 (https://tiku.one)

GMT+8, 2025-12-10 21:53 , Processed in 0.284580 second(s), 92 queries , Redis On.