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习题练习：Wave-EM Wave
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 作者: admin  发布日期: 2024-07-31 22:50    总分: 14分  得分: _____________

答题人: 游客未登录  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 r53 f w-b9cqewh0wdjn4-yds 1n elationship for the speed v of the following three electromagnetic waves in vacuum? The waves are-weh9y wswf4n c-bn3 d5j01 dq : X-rays, UV 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 folloi3s34j yt9qqg3 -nw liwing electromagnetic waves in terms of increasing wavw9g4-lq j33sq iynit3 elength

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.06: Electromagnetb4 sq3qsei5*n ic radiation travels through vacuum with a wavelength of 400 nm. Which one of tsb* ieq35nq s4he following choices best describes this type of 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 electro+z6n vem 1 68ofha.ndgmagnetic radiation has the least en6voead6 m+1zn8.g fn hergy per photon?

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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 electropsqeqrdx ocrz1w.*j0pc9x ;tz87 6z+magnetic radiation has the greatestp*cqtxpw. d07qze18 zc o69xsr;+rjz 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 following types of electromagnetic radia nwt3c+f)okg7 tion has the largest +f7 ontc3g)kwmagnitude of 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 br tc3rjn2e3j*a-(;p bzkemmu( oadcasts with 3.27 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 strtq)mmw,l z(/ation KFKA started broadcasting 78 years ago at 1.31 MHz on the AM dial. What is the approximate length of its radio w/tz lm),m(qr 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 most effective transmigcqapzkd, drctn7 6*s rcy+b j x0 qf;i43,6,atting antenna is equal to one-fourth the wavelength of the broadcast wave. If a radio station has an antenna 4.5 meters long then what is the bri7;bd*,6 xz,kqnyjq 3 cp4rfc0gct+sada,6roadcast 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 broadcasts its signal at a frequenc6o5-eo /z ws:egmar9v y of 100.0 MHz. What is the wavelength of ther-a:v eoz wg569so m/e station’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 following choi4 e1jujkb in9g x/mgr93f 9q.kces best represents the type of electromagnetic wave associated with fb4 qj9gi/.9mxgue93jk nkr1 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 e xq.0yh wg 2kg1/o0vhilectric field given by the expression (in Cartesian coordinates): x12vqhkg y.0i w/oh0g
$\overrightarrow{E}(x,t)\:=\:6.0cos(1.14\times\:10^7x-3.34\times\:10^{15}t)\overrightarrow{z}$
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 ele,wbyki 9kgv+2ctric field given by the expression (in Cartesian coordinates):2y k9v+gi b,wk
$\overrightarrow{E}(x,t)\:=\:6.0cos(1.14\times\:10^7x-3.34\times\:10^{15}t)\overrightarrow{z}$
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 magnetic field given by the expression (in)a* t :y9of70pec ealp Carte)fotpel e:ay70c a9p*sian coordinates) $\overrightarrow{B} = 6.0 \times\:10^{-6}cos(2.21\times\: 10^7z − 6.63\times\: 10^{15}t)\overrightarrow{x}$ . 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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  • 姓名:游客(未登录)
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    总分:14分 及格:8.4分 时间:不限时
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