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 electrdrg,k(e4t 9gi omagnetism 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 bytn*kmgv7zth3n ru (sjpo0z1: b-l 54v 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 prod+8*x(xj d tx ibem727dankuu1cm oj11uce 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 thrp nq4xk4zqf) )ough 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 all qipn +b+1x o9g bbaj42electromagnetic 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 trp z8 *v 6ds9pqa;j4d*tb,rhlz avel 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 fields in the radiau(vg d 0q3czm,tion field are found to (gmv,d u30cq zdecrease 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 traslizl3)m* oc 8veling to the east. At one instant at a given poinlci3)*ml sz8o t 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 antennbzqsay/pe/ + sn)hz3ia(j) ,ea that is oriented vertically. What should be the orientation of a straight wire receiving antenna? Ipb3z aej(s/n hy)/eiza,q+)st 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 areiw3sy/mw0hx 14j;fjep x3p 8t

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 electromagned 9*b 0 2uyxdwh+5nn( sfi*qkytic 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 irhjvh6a ef 4x9b6bb/na1;n0 7 7ljmean wavelength 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 per9*to3hfh(f9f opud /o unit time per unit area is thetf 3f9 9 ohdp*f/uooh(

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 electrof (r;dbf7;2rb tz1k9ee gr7i mmagnetic 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 cor /pr- /z +.t/uijw+f.t)4sguncuqt lnrectly lists electromagnetic waves in order from longest to shortest wavelength?nt/ rq+t.ztig4 + l/c/u -uwpn u.j)fs

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 value of 2.0 V/o5e wzk6c duuk1937/6bveir,lxn,(3 kqsl o mm, what is the peak value of the magnquwei n kmk, 59o e1d7(x63v zcus3lbo /,6krletic 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 wavego6hd/we1 flh3nw)z pmv8 8 8ns 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 92.9-MHz rad0vo3v2i e7uyrwa9v/a hhpp: f,0 cm0jio 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 ofm-7(kclcrhz ch,3 ; hc a radio wave signal transmitted at a frequency of 7.2 MHz?z;h7cmkcc l3 (ch, rh-

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 carrier wave in the station WBRN 1vh r elm5qe2jvb1q5 n1z5i*d,460?

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 mm8sjm zjo2/b9h 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 igx6vysrcma5y9 wj l1 (yr e*4*n 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 trave.k1hd3djcf u - trwx3 8s0o(vhl 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 2m0akfw m6fd68v-ry,2s kh s 8e0 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 travels in a yyqbw:o*5x2g:kur p w4ear)?

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 indicatkj 8mor:b gv ems93)4hes that a transmitted pulse return as an echo in 20 ms after transmission. How far awa s9o:mbk)hm 4vr jg3e8y 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 rate y9ce )ymm w;k iu0+1eaof aboucmi9k1yu ymwae )+0;e 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 (abovexwm/sr23u . x ael. aoo8.ho-n the atmosphere) at a rate of abols.mau3oo8.-hxwe 2x aorn/ . ut $1350 \; W/m^{2}$. 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 kpeoo-jby j;2tr bc 61gyy/-8a distance 2.5 m from a 100-W likcty jebr2;g- p y1/ -yjoob68ght 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 magnet6wbl cn:fl)l.o4 3 x-xg52i oa2l .a6eurqx txic field at a distance 2.5 m from a 100-W li6lxg64e2t:3x .aba2n wx llox -l)q.cr uo if5ght 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 vrly;aome3x/hmr9 ic961 (s gdiameter. What is the average (;/c(lr1yrg3x ihems v o9a6m9 rms) value 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 2.00 mm in diame*hr( ogl3 zct/c9w t13e8o2cv0vney zr bn5,cter. What is the average (rms) value of the magw,c 853e(e3r zh0vlco t ocgt/v 1nb2z9n*rc ynetic 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 t2w hyph:2xs(, 9smrbw ransported 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 (jow4j3+e* xq 84ussjv7 cu qu)l ii7bof the Sun, 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:    

  • 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 11:19 , Processed in 0.211205 second(s), 91 queries , Redis On.