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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 lxk,-uog*uxhw 3y9d ) speed v of the following three electromagnetic waves in vacu3 u*goy)h9, wdluxk-xum? The waves are : 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 following electromagnetic wav5dwz8o 6g*l vdes 56do*wg lv8 dzin terms 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 travels1g8mqkd,v lgn jcwfq,)l;2d. 5qr0 f s through vacuum with a wavelength of 400 nm. Which one of the following choices best descc2sd m w kqq g,dgffjq1 r.85ln;)0lv,ribes 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 electromagneti w.zz )2 ahuzw:wr5iq3c radiation has the least energwzz 5awqi)r3 .:hw2zu y 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 electromagnetic radiation has the greate1p 7*i hkw;3un y-hgitst enerytp;uih 17 k3nw-h gi*gy 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 typeekqwsw: sq*c,h (zi78 s of electromagnetic radiation has the largest mc,8ews7 wz:ki*sq qh(agnitude 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 broadcasts with v1(fskz )7i uc3.27 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 br r(k0hon*tfzuh4+a6 joadcasting 78 years ago at 1.31 MHz on the AM dial. What is the approximate length +*u 0 4t norhzfj(akh6of 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 most effective9 a3od*byztrx ),e y+g transmitting 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+ 9gbyra3yde zo,)t x* 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 b 7(ll8z)hl m2dhj*t6)y hcmf xroadcasts its signal at a frequency of 100.0 MHz. What is the w6ll(hf 7)ldcj z2mh8 hxyt*m )avelength of the 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 choices best represents the type of evs *yz2(aq8 jylectromagnetic wave associateday8v* y (s2jzq 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 ha9a1c9dkne+hvpgs c)hvuuzkm2h tk,8 ,o 5+y/s an electric field given by the expression (in Cartesi5ud s9v , 8/gkecm 2z+nv,oc9h kpy+kat h1u)han coordinates):
$\overrightarrow{E}(x,t)\:=\:6.0cos(1.14\times\:10^7x-3.34\times\:10^{15}t)\overrightarrow{z}$
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 thzo; * 5pts6iok2 -it4oaxfro1e expression (in Cartesian coordinates):2oasz o*i6oot r;t 1k5p4xfi-
$\overrightarrow{E}(x,t)\:=\:6.0cos(1.14\times\:10^7x-3.34\times\:10^{15}t)\overrightarrow{z}$
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 mbshqd u:6y0, hagnetic field given by the expression (in Cartesian coordinateh:dqb yu s6h,0s) $\overrightarrow{B} = 6.0 \times\:10^{-6}cos(2.21\times\: 10^7z − 6.63\times\: 10^{15}t)\overrightarrow{x}$ . 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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