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习题练习：Physics Unit24: Wave Nature of Light
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 作者: admin  发布日期: 2022-08-28 11:19    总分: 91分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月28日 11:19  切换到: 整卷模式

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1#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Huygen's principleo4+pz-byrj l1o8at c4wye4h 3.
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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is a falxndy.w- r3o w *m8oke)se statement?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The wave theory of light is attribu xg.y2e1dk xc1ted to

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The particle theory of light is attributedm,r tro.n1c,z to

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a light wave enters into 6s;cqsk4vby; - a cto* +k8ptta medium of different optical density,

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light (wavelength = 590 nm), originally traveling in air, e37cdrtg p:cmtjmgq q;,)+t;wnters a piece of glass (index of refraction 1.)c7gq m tjrwc3m t;p,q+:d tg;50), its frequency

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light (wavelength = 590 nm), originally traveling 1am cq3g bxkmz )7/xj,r+ 8lpiin air, enters a piece o7m3r ) qjg+z1i,mpk8l xcb/ axf glass (index of refraction 1.50), its wavelength

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is responsible f pp h9492 r).gfdpkdqow,tf9v or light spreading as it passes through a narrow slitq49) 2p,r9gt dffkvpop.h dw9?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Radio waves are diffracted by large t ehb(7djy46nobjects such as buildings, whereas light is not noticeably db yehn6j7(t4diffracted. Why is this?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is responsible for) i5arytcf6:m alternating light and dark bands when light passes througar m6c)y:t fi5h two or more narrow slits?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two light sources are said to bl 7u7hu:p3bh3b fzm/ge coherent if they

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What do we mean when we say t+owxvrow1d qud: d -16t/5mrjhat two light rays striking a screen are in phase with56rurwm1q o:v1/ o-wdtdx dj+ each other?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two beams of coherent light travel different paths arriving at point P. jy/ (xqlv/fkcw/x (x5 If the maximum constructive interference is to occur at point P, the two beams lwjxqc/ yv/x /(x5k(fmust

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two beams of coherent light travel different paths arrivco. o8ek+ 8yp aq-*oqfing at point P. If the maximum destructive interference is to occur at point P, the t8keo. f- apo+*c 8qoyqwo beams must

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first maxima on either side of the centh/y+g0un hz q(ral bright spot in a double-slit experiment, light from each opening arrin+q/ y hu0ghz(ves

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first minima on either side of the central bright spot in a dz 6+h-j9ktc5ujeb e 8tdxf0nd;uj7 (e ouble-slit experiment, light from each opening arrz8te5t-u 0+xjej 9;unce6bh7 (dd kfjives

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the second maxima on eithmi crz -b8-kg7er side of the central bright spot in a double-slit experiment, light k8 -ic7grbm- zfrom

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a Young's double slit experiment, if the separation between the slits decm7an5*iz rqv syvd0ef*8 g5g,reases, what happens to the v vga7558d,*f mqn*ey0ri gzsdistance between the interference fringes?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, it is observed th22y 4k5sixei fn6 g7cfat the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima when the slit separatiof6ys2n 45x7igic f2ek n is cut in half?

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One beam of coherent light trav: hsnuz*3yu :pels path $P_1$ in arriving at point Q and another coherent beam travels path $P_2$ in arriving at the same point. If these two beams are to interfere destructively, the path difference $P_1 - P_2$ must be equal to

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a wave from one slit of a Young's double slit experiment arrives9w pb1cyo,hixodz7ms: )w/r+ at a point on the screm1)7s wpwordy/bh ,x zio:9+c en one-half wavelength behind the wave from the other slit, which is observed at that point?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Why would it be impossible to obtain interference fringes in a doubj tutqq7u(6)d/h aw 6xle-slit experiment if the separation of the slits is less than the wavelengt )ta(jh7 xqd6q6u/tw uh of the light used?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The separation between adjacent maxima in a double-slit intw4a 6nh0x- r wd5gac5eerference pattern using mo-awrnegh da4wx5 650cnochromatic light is

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which explains why a prism r 2o(u)kcoy p,t;qyys i*.l ;vseparates white light into different colspuokyy2r q(v)c i;ot. y*;,lors is

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which alloos dtz0q7lhrtc+74.cl 6u yc7 ws a rainbow to form is

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  White light is

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light with wavelength/jn-jfpyy, i 5 slightly shorter than 400 nm is called

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light with wavelength slightly longer than 750 nm isx7g ,k2:f *hio5jevbb -f6 woi called

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which color of light undergoes the greatest r: s:9hcoibce60glctk q0,*knefraction when passing from air to gclcc,t* 0:n9k giob6h s ke0:qlass?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which color of light undergoes the smallest refraction whe8y1to x ep-ld/n passing from air to gt e /8xypdl1o-lass?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of white light is incident on a tw- 5edl5gj4+jk0otnrhick glass plate with parallel sides, at an angle+g4jte 5od-j 0lk5rnw between $0^{\circ}$ and $90^{\circ}$ with the normal. Which color emerges from the other side first?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person gazes at a very distant light source. If she now holds up two fsdb7 bwx,g6/k ingers, with a very small gap between them, and looks at the light source, she 6d ,b/gkswb7xwill see

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a single slit diffraction experiment, if the width of the slit incr q8zi3mixxce, y;z30 ieases, what happens to the width of the central maximum on 0ize;c,ix i3y x3q8m za screen?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two diffraction gratings; one has 4000 lines per cm and the ol6sqr- (m;,ie hni.) idw1zx lther one has 60 x z ;ie)(6sm1-diiqn,w.h lrl00 lines per cm. Make a statement comparing the dispersion of the two gratings.

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two diffraction gratings with the same slit pw5+pz a4 go8oseparation, the only difference being that one grating has 3 slits and the other 4 slits. If both gratings are illuminated with a beam of the same monochromatic light, make a statement concernog 4wp+opa8z 5ing the separation between the orders.

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The colors on an oil slick are caused by reflectioni w 9vhz6/iv6:q* lrgg and

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  We have seen that two monochromatic light waves can.zarq6 zd7 ic- cz93vj interfere constructively or destructively, depending on their phase9qcr zizc-aj 7v 3.dz6 difference. One consequence of this phenomenon is

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light, which is travelihk.ws:h:2b v,e(;h o*c ,ndrpmbjj6 ong in glass, strikes an air boundary, there ibdpbs,c;mv2jo h e6hnoh(j*w:. kr, :s

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light, which is traveling in air, is refi;k plt w 8so8log)36llected by a glass surface, theoitkgl 3;los)8 lw8p6re is

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A soap film is being viewed in wh+ujbeli 8 r tp 1i/a6mshw/y-ad +6g:site light. As the film becomes very much thinner thansg mlr6/6d1b+ e 8 jys:i-hupa/ai+ tw the wavelength of blue light, the film

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In terms of the wavelength of light in magnesium fluoride, wha4bh cbh: , ly(hxmv0l9t is the minimum thickness of magnesium fluoride coating that must be applied to a glassly9hb ml0,c:b 4x(v hh lens to make it non-reflecting for that wavelength? (The index of refraction of magnesium fluoride is intermediate to that of glass and air.)

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens is placed on a flat glass plate andp; *rk rgx2fffw b4u26 illuminated from above with monochromx4bfw purr; 2g6f2 f*katic red light. When viewed from above, concentric bands of red and dark are observed. What does one observe at the exact center of the lens where the lens and the glass plate are in direct contact?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is responsible for the fact that cj/-e h(rwy+ dquw1-fg ertain sunglasses can reduce glare from refly /hjude-1+wgq-f(r w ected surfaces?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a beam of light, the direction of polarization is dnx,w51s7d(bc /k sygfefined as

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the process to obtai 0 scuf,frh-r-8/bg eun polarized light in a dichroic material like a Polaroid filmu8 ,u-rfer -c/fsg hb0?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the transmission anto:upf 2 ue(-xes of two Polaroid films are perpendicular to each other, what is the percentage of the incident lip:2ton (-u efught which will pass the two films?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sunlight reflected from theybejji;0oh wg)4n- f2 surface of a lake

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The polarization of sunliqgu6a+psvb5i ; 49gccnb ); zgght is greatest at

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In which of the following is diffracti ucs5yi56vj xyq:z7)-xlv: u don NOT exhibited?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  On a clear day, the sky appears to be more blue toward the zenith (overhez-: ql0v2sp(,b /8 jxwjyhzw ead) than it does toward s0zz-w, lype 2j8(xb v:q/wj hthe horizon. This occurs because

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of light ($f = 5.0 \times 10^{14} \; Hz$) enters a piece of glass (n = 1.5). What is the frequency of the light while it is in the glass?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light has a wavelength of 600 nmg5v*9u s:lt. b3lvm4 uhn; srw in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is sulg 9 wt5vmub 4.*3snr; :vhlthe wavelength of the light in the glass?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light has wavelength 600 nm in a vacuum. It passes. c ixvp+yk01e into glass, which has an index of refraction of 1.50. What ip+ce0.1 xy kvis the frequency of the light inside the glass?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light has a wavelength of 600 nm in a vacuum. It passes l9/qd j :cpjk.l6j + iic8k5 lb9fxp+yinto glass, which has an index of refraction of 1.50. What is the speec/ yilb jdk96j9: plc+j.5 fkxi8+ lpqd of the light in the glass?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in v ,* ezm- aysw;;x)jnbmacuum is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the index of refraction of the liquid.

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 5(: wyi w a0g3;y;;ubn d*ndxte50 nm in air is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the frequency of the light in the liquid.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in air is foun/ hs oxewj011+fq ou(a tty:6kyd/nnoq m(78ld to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the wavelength of the light in the liquid.

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin slits are 6.00 mm apart. Monochromatic liga,+eb8oe-n ej4dahxa1cv 4 8 iht falls on these slits, and produces a fifth order intca j8i+an4 he ,vaxd4boe -18eerference fringe at an angle of $32.3^{\circ}$. What is the wavelength of the light?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 575 nm falls on a double-slit and the third order br- cb:rp7p7jwlight fringe is seen p rlw7bp:cj-7at an angle of $6.5^{\circ}$. What is the separation between the double slits?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a Young's double slit expbrpihauka ; + (s3 lney jt+63 q-cpf(j:,9pgeeriment, if the separation between the two slits is 0.06 ea3pf qa gr(p +(j;niyljbek ,pct9+:hu-3s50 mm and the distance from the slits to a screen is 2.5 m, find the spacing between the first-order and
second-order bright fringes for light with wavelength of 600 nm.

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, the slit separai7trs+ oh/ b4b9jyn 8btion is 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate the slits. A screen is placedrb ybt7jbos /9 i84h+n 2.0 m from the slits. At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin slits are 0.050 mm apart. Monochromatic light of wav3;msoal 6z).ww g ni9be ;tetz-j7 s9kelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far - j siwoa.ns 9ze w73bltk9e;;6)tmgzapart are adjacent interference fringes?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A monochromatic lightjtxwj k0)x6u9kg1p lg/k ,,de is incident on a Young's double slit setup that has a slit separation of 30.0 mm. The resultant bright fringe sepawg lkj 0p1,xj6 ekuxg)d t/9k,ration is 2.15 cm on a screen 1.20 m from the double slit. What is the separation between the third-order bright fringe and the zeroth-order bright fringe?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel light beam containing two wavelengths, 480 nm and 700 nm, strikes a :v1tnv(k j sjh /j.y9uplain piece of glass at an angle of incidence of 60e. The indn:vhvjs./(j j1yuk 9tex of refraction of the glass is 1.4830 at 480 nm and 1.4760 at 700 nm. Determine the angle between the two beams in the glass.

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A ray of light consisting of blue light (wavelength 480 nm) and red liescypk0b)(pj6o mm 48 ght (wavelength 670 nm) is incidenbk6)y(m0psm8je ocp4t on a thick piece of glass at $80^{\circ}$. What is the angular separation between the refracted red and refracted blue beams while they are in the glass? (The respective indices of refraction for the blue light and the red light are 1.4636 and 1.4561.)

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  350 nm of light falls on a single slit of wd78o e 9d4qo4iucwd5 width 0.20 mm. What is the angular width of the central9w4ooed 5qdi 4w u8dc7 diffraction peak?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A single slit, which i1udmi omiwetzc9s74u 5ex7/kfa- o.y ;ec m4 +s 0.050 mm wide, is illuminated by light of 550 nm wavelength. What is the angular separation between the first two minima on eite7 7s 9 4;tkozumeu. em4x+ci/ym5 fcao i-d1wher side of the central maximum?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 687 nm is incident on a singfch ox0f )9zju,5 li4mle slit 0.75 mm wide. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be 1. juc4,m5 iz0x)flh9fo7 mm from the center of the screen?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 610 nm is ra: x p,w h:8jtak2jy+incident on a slit 0.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m from the slit. What is the width2+j,p:rtxk a yjh8:wa of the central maximum?

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 580 nm is incident on a slit of width 0.300 mm. Ai s)jg xx4k98e73 mfnkn observing screen is placed 2.00 m from the slit. Find the po7 fgiex3nj k 8xkms94)sition of the first order dark fringe from the center of the screen.

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 580 nm is incident on a slit of width 0.300 mqgj(+ajw)f91 .j:tzhv a-wnt m. An observing screen is placed 2.00 m from the1jg9q jw(nt .+t aa w)jh:zvf- slit. Find the width of the central maximum.

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When light illuminates a grating with 7000 lines per centime7r gevf*f6,vri759/pwwt n9yk -u gqjter, its second order wr/nj9f -qei7*9ypf67w k,tvv5grgumaximum is at $62.4^{\circ}$. What is the wavelength of the light?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A diffraction grating has 5000 lines per cm. * 4exbeqb+e* f1jqt.q The angle between the central maximum and the fourth order m* fx +q14tbqqeb.*ejeaximum is $47.2^{\circ}$. What is the wavelength of the light?

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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light is incident on a grating that is 75 mm wide and ruledovnvf /*8t ;9c6fb nir4bkd8nd z-9lk with 50,000 ldb-r8bnkz*v9fo8ln9c 4n; v t f 6kd/iines. The second-order maximum is seen at $32.5^{\circ}$. What is the wavelength of the incident light?

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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a diffraction experiment, light of 600 nm wavelength pq1 pd s-qwg /*p0o6v*6 lderfiroduces a first-order maximum 0.350 mm from the central maximum on a distant screen. A second monochromatic source produces a third-order maximum 0.870 mm from the central maximum when it passes through the same diffraction grating. What is the wavelength of the light from the secondvd **61p6qw0/ pd ri-eqlfs og source?

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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A diffraction grating has 6 alj, 3xg5fxu ,:ww;dv000 lines per centimeter ruled on it. What is the angular separation between the second and the third orders on the same side oflw 5:j;,fg vxa3,xduw the central order when the grating is illuminated with a beam of light of wavelength 550 nm?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  White light is spread out into spexzu a/q(iy)jsowjnegfm)if l.8; 0 (/ctral hues by a grating. If the grating has 2000 linx g/w.f( e)/;qi) snia08zfmjlo( jy ues per centimeter, at what angle will red light (640 nm) appear in the first order?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A He-Ne laser (632.8 nm) is used to calibrate a grating. If the firstbbypn ;hnptva+- 6e5.-order maximum bp t vyhena+.-;6p5n boccurs at $20.5^{\circ}$, what is the grating constant (the distance between the slits)?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light of wavelength 500 nm is yzw+jqc kqss4r*y a;k5)l:0nincident normally on a grating. If the thiqqk ;nsalw 0:j) k4y+ysr c*z5rd-order maximum of the diffraction pattern is observed at $32.0^{\circ}$, what is the grating constant (distance between the slits)?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light of wavelength 500 nm i8e tro lcwa4q.y*7+frllk+i9;wai2ux 2hbt 2s incident normally on a grating. If the th +4ihr *abwyw7lel 2l ak q29x82+;rtu .tofciird-order maximum of the diffraction pattern is observed at $32.0^{\circ}$, how many total number of maxima can be seen?

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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A glass plate 2.5 cm long is separated from an2 sk xq//kst3qother glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent interference bands when viewed with light of w2kkq//3tsxsq avelength 600 nm?

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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A soap bubble has an index of refraction of 1.3z/ (9yfb f 59tx7wf)ayuml *n8kq-yyv3. What minimum thickness of this bubble will ensure maximum reflectance of normally inc8w) 9/v -zmn ftff( yyyqly59k*u7xb aident 530 nm wavelength light?

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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 500 nm illuminates a soap film ( n = 1.33)-0/8o nk9 r/hciaivmh . What is the minimum thickness of film that will give an interference when the light is inckri o /mh/a-0nvi9hc 8ident normally on it?

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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the minimum thickness of a nonreflecting film coating (n = 1.30) 8cd ml/b:6 x3wzfp xe2on a glass lens (n = 1.50) for waveleng:8wpx xz bm/flde632cth 500 nm?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal polarizer is placed inl5)n n 5dq8:ul5rzpp4jaymq1 a beam of unpolarized light and the intensity of the transmitted light is 1. A second ideal 5r4j:58q)n mqnl5 yazdu1ppl polarizer is placed in the beam with its referred direction rotated $40^{\circ}$ to that of the first polarizer. What is the intensity of the beam after it has passed through both polarizers?

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A polarizer (with its preferred dirx kk3x j;zc2o8ection rotated $30^{\circ}$ to the vertical) is placed in a beam of unpolarized light of intensity 1. After passing through the polarizer, the beam's intensity is

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of unpolarized light in air strikes a flat piece of glass at an a4 c/no* /jes* cuqy0qmngle of sc4yqqe u o*nj/*m/ 0c$57.3^{\circ}$. If the reflected beam is completely polarized, what is the index of refraction of the glass?

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Unpolarized light is passed through a polarizer-analyzer combinationie3b5a* r/ivkb-zv gdtd(7 z.. The transmission axes of the polarizer and the analyzer are ati/5bt-kbz . idv rad(37v ze*g $30.0^{\circ}$ to each other. What percentage of the unpolarized light gets through the combination?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How far above the horizon is the Moon when its imageiaibrvr33-/ qr l5362n ohz ah reflected in calm water is completely polariz rqz3nrb2hih3/-5v3r i 6 alaoed?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of light passes through a polarizer ag v+d 2sjldyk(no-9fn 32geewz6, u1 knd then an analyzer. In this process, the intensity of the light transmitted is reduced to 10% of the intensity incident on the analyzer. What is the angle between the axes of the polarizer and tnd+2sn - 1v(yf deg6kuk,lj e9g 3zo2whe analyzer?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the Brewster's angle for light traveling in vacph 73+ muhom*iuum and reflecting off a piece of glass of index of refraction 1.48+mm3hpo*h7i u?

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