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 dvmvmvumgj06 em:sb) to( 6i :/eveloped 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 prod uq qryy0r9k(t54v 2qbuced 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 produ7ifdwt i*lzfu29b +3ece 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 ivn7roi w 35z-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 electromagneqif .j1ricj;pjh: .9t tic 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 thra+yk lz69c7;wl.n2hf-zmeb.ws vk(j 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 i2j9wp1*wxu8;dj7 joev pfm0+zb5ft field are found to decrease with distance1p7 ; pwejb t950jv8fo2fjm z*+xdwui 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 zwp7oyxoe*2 m0jwp: 8)lxo 4255k wl1 ners lltraveling to the east. At one instant at a given pointz5sl ew yll 0e1 jlxw7pon*m2:28)p5k4xwroo 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 antenna that jsvuu cxh- sv ).f.(, vw-dn7uis oriented vertically. What should fsuw.u -.vn(vx)shvju7c-,d 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 arev j; y6g rwn;z 7vcivc5/6zds3orwe0 5

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 electrowykr a +-3rmbc,xo ; iwu45ru.magnetic 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 wavelengthy bs(frnpodp3 h068;kvdh 5 h1un :)mj 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 transports per unit time per unitrkq 97oyr3 ,)dkp d 6*auzcc)l area is the r,7)3p6ack z* ro dcuql)9kdy

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 is vj z9v7pm (6vpcalled 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 electroq * zj,f)x-t:xxmkxt5v i.mp 41jrji- magnetic waves in order from longest ) :v jkx 1ji4-r t,xxmizpj*xtm f5q-.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 a peak val:xp6x iw27au d.c*mq aue of 2.0 V/m, what is the peak value of the magnetic p2c.a: umxw6ida *qx7 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 wavl f6ogsv*kyfh5q *n/.o n2 jn/es 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 /g8 srgnx2t5gb1(rl wa 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 transmitt z,-q qydy(sr:ed at a frequency of 7.2 M,ryy: -qsz dq(Hz?

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 carri x5eqoi cx5j 2iy/:eb,k3xh/t 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 dg:pu h5m,xr)xr ).xu 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 in 1.8zg,tx hpx63f 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 1.0 m r9 oes nm4+dvf:bko5( ww/d9p?

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 2m2x.pma-kgkp e (m 8usignal 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 light o*(ctjey ;0fobl + yrm:c,,zi 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 indicne8i,65fu 0p( x njqmf4gks6ur od*l8ates that a transmitted pulse return as an echo in 20 ms after transmission. How far arfd5j0eg*lsip48 8o6 nf6q muu ,k(nxway 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 (abte 9kk:p(idj( ove the atmosphere) at a rate of abou(ekkd9t p:ij(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 Sunp.rz f969f wmn zhf1k2ba bt1, reaches the Earth (above the atmosphere) at a rate of aboutwfz 1 69znkahr,.m2b9fbpf t1 $1350 \; W/m^{2}$. 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 di(t--ohaa */ra;uc s-ha ky ck2stance 2.5 m from a 100-W light bulb- kuraao-aah(/ct - 2cs;k yh*?

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 atshc qljv*m(of6c poo: c-bmh 85;(v1m a distance 2.5 m from a 100-W light chov m5;:*q6m8ojchpl-o vmf(1( bsc 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 ou+r*eva8mmve* h 3se(h t a narrow beam 2.00 mm in diameter. What is the average (rms) value of the electriehe3v*h*m+ as mre 8v(c 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 average;.:) s zea5arwoz-fco (rms) value of the magnc;)fe .ozra-:os5awzetic 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 transportedo bh0437 r2 nufmjpzi- 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, giq hgb7e3s qnu984oke-ven 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:    

  • 答题人:
  • 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, 2024-10-3 11:18 , Processed in 0.235415 second(s), 91 queries , Redis On.