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习题练习:Wave-EM Wave



 作者: admin发布日期: 2024-07-31 22:50   总分: 14分  得分: _____________

答题人: 匿名未登录  开始时间: 24年07月31日 22:50  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.19: Which is the correct relationship for the speedz/843c h)f vz eqvst+f v of the following three electromagnetic waves in vacuum? The waves are : X-rays, fh)v+tfq3zsv8 z4/c eUV rays, microwaves.

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.15: In the electromagnetic spectrum, rank the following electroz-4wokk d06b wjc;n7rev )qf 1magnetic waves in ;k1br q)dcv n -60oj4fwek7wzterms of increasing wavelength

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.06: Electromagnetic radiation travels through vozp/kbsa 8s,2acuum with a wavelength of 400 nm. Which one of the following choices best describes this type ofbsz2,ko s p8/a radiation?

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.11: Which of the following types of ek :,sf8/ 6eq*0ajebo6 zhvlkc/yi;bc lectromagnetic radiation has the least energy per phovqh ; /b* 0,az:ej6oykkcis/b86celfton?

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.07: Which of the following types of electromag,9 8tn*cefs ke/95hu kmsi w(nnetic radiation has the greatest( 5 enfkwis n9 /h*u98t,sckme energy per photon?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.25: Which of the followi:y koe9gw lh*/ng types of electromagnetic radiation has the largest magnitude of /woyl 9:*ehgk momentum per photon?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.04: Which station broadcasts with 3.(o brg a q5qq1+ws 6lwpt-eqslkx7:,-27 m radio waves?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.25: Pioneering radio station KFKA started broa 6uaa87vse0nlm he c10dcasting 78 years ago at 1.31 MHz on the AM dial. What is the approes7080amlhcu ave6n1ximate length of its radio waves?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.07: The length of the mos vqlv9 ba8sa4-htep 6wf/ 8ny4t effective transmitting antenna is equal to one-fourth the wavelengtv qf h48-94ateanvbwply 68/sh of the broadcast wave. If a radio station has an antenna 4.5 meters long then what is the broadcast frequency of the radio station?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.15: A radio station bro*,jt *)hq2zvrn60 r w(dpqfziju6c vt-o-j5 tadcasts its signal at a frequency of 100.0 MHz. What is the wavelength of the svrcu0wj)jtrqqnpz- 6t2 6z-vifjt (*h, d5 *o tation’s signal?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.16: Which one of the follow,wpn xzg1yb+ 4ing choices best represents the type of electromagnetic wave asgx1y , +wb4znpsociated with a frequency of $10^{18}Hz$?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electromagnetic wave has an electric field given by the expression (in C:8js7w9va +p0kiu o0hyg y.ujartesian coordin up8way .gjh jk0s9:0o7 vi+yuates):
$\overrightarrow{E}(x,t)\:=\:6.0cos(1.14\times\:10^7x-3.34\times\:10^{15}t)\overrightarrow{z}$
09.48: What is the direction of the energy flow for the wave?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electromagnetic wave has an electric field given by the expression (i(py;-i;dmb + .nl domp(;hfrvn Cartesian coordi;nm d- mrp;(;(ybif o.hdl+ vpnates):
$\overrightarrow{E}(x,t)\:=\:6.0cos(1.14\times\:10^7x-3.34\times\:10^{15}t)\overrightarrow{z}$
09.49: What is the direction of the magnetic field at time t=0 and position x=0?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.48: An electromagnetic wave has a magnet:9jpqodue5 x* ic field given by the expression (in Cartesian coordinxop*9jeqd :5 uates) $\overrightarrow{B} = 6.0 \times\:10^{-6}cos(2.21\times\: 10^7z − 6.63\times\: 10^{15}t)\overrightarrow{x}$ . At t=0 and position x=y=z=0, what is the direction of the electric field associated with this wave?

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