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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: 匿名未登录  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 principj(n)1d tv ;e yag)f*nyle.
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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 false4 (iv r 4o6kb3nqnj3txm+4/ w2wmfp yc 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 attr wp ,3nsrkjk-/ibuted 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 attri ewkuoce.lx.2, a38 kvbuted 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 a medium of xvje9;n / cglab1v8j7different 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 (wavele *hy wf+ocnl+shz; 1j:ngth = 590 nm), originally traveling in air, enters a piece of glass (index of refraction 1.50), its+y *os1h: w;j+nlhzcf 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 (wavelen p6sc2zb73p vbvd+, kcsd0o 9egth = 590 nm), originally traveling in air, enters a piece of glass (index of refraction 1.50), its wapobzk63s 2 7ves0 c,+c pbddv9velength

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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 for light spreading as it passu* agb8m *bx ccv418bues through a narrow slit? b gb8c 8m4buu*1vaxc*

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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 objects such as buildiogee+o/ jq9 a/ngs, whereas light is not noticeably dif/o/oaj+gq ee9fracted. 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 alternating lightb:5,bmkzg)a po3o5tu and dark bands when light passes through two or gbb, k tmoz:3)ao55upmore 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 *1d*ve 0 9o5.acu gc7swffs/mxve;vs to be 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 that two light rzy65/ rekla w1ays striking a screen are in phase with /16awlryzke5 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 arrgnmz: k1xli 5 mvkz.)8iving at point P. If the maximum constructive interference is to occur at point P, the two beams mlm k.:1v )zix k8g5znmust

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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 pathzr4y 76cj,ftgnmf u p4-lf3h9s arriving at point P. If the maximum destructive in7c9f-lfm6 4 hjfgt 3,z4yp nruterference is to occur at point P, the two 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 ork9ba6ax/wa gq.7c1ed avk78n either side of the central bright spot in a double-slit experiment, light from each okkq g7 1 w6b ea8vc.arx7/ad9apening arrives

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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 double-slu hh7yw:c.aaa0,ypt ( it experiment, lichta 7ay.h wu(ya: ,p0ght from each opening arrives

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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 either side of4o)-iy rvo a+k the central bright spot in a double-slit experiment, lig+ ikov -ryao4)ht from

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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 betweencalnmh/x--o :6q6qj2 jt;kd h the slits decreases, what happens to the distance between th6:a md6h ;l-hq ntqcj2kjxo/-e 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 that the distance vt( 64ab-v)lrnp kvbs1 ;rzy 1between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between a(4n valp)sb6rzt -;vy1bv 1 rkdjacent maxima when the slit separation 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 t hw)g+:qqff+nravels 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 experimentz1:d3ob 9,a/u hq p5dxxo(ig ek 8fx2h arrives at a point on the screen one-half wave 9h 2/3qp,o8oeih x kfgz5(daxxb: du1length 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 friqxf-:m- +rasl32 ji zinges in a double-slit experiment if the separation of the slits is less than the wavelength of the ligmf- 3xiz+sj:-2lqa riht 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 interference pattern usi /utp*m; cb7wcng cmpb;c*7t u/wmonochromatic 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 / epfbw19hy7oqb rxif3o(w rb1m,/, wwhy a prism separates white light into different colriw y x/1w9po bo(qf/mf3h,,17wbrbeors 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 allows a rainbow yxnm/nu k6 e-8u*x3 pcto 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 sligh:c u n l,9gvtjb6 /ufw-k5cvt/dk m5:stly 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 slightlyj/ki- 5zjyuqc5 93gc* -ed cvt longer than 750 nm is 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 k0,ga vt1fa tr3iu2-hrefraction when passing from air to uit31atf- r ha,2g0vkglass?

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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 underg5 4v /oqq d 7luv7d2ac1o(pvjj u:lq;uoes the smallest refraction when passing from air to glas(puv o uq57do/qv42ul:d1c vj7jl q a;s?

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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 thick glass plate with)pd9d p :rm zazyp2z0,-cst0b parallel sides, at an angle bet -z my)0p9a ztbp,rsd20cpzd:ween $0^{\circ}$ 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 rdw6r 8dpz,4g1*ijtw light source. If she now holds up two fingers, with a very small gap between them, and looks at the light sourcjtp*w,d1rd468 ir gzw e, she will 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(k ft*x gq1-di1dxn4 v of the slit increases, what happens to the width of the central 1*xi(- q dxd4v1fngk tmaximum on a 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 line1; b81ddfv (flto4inds per cm and the other one has 6000 lines per cm. Make a statement comparing fbdnfvt4;(o1l 18d idthe 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 sldxkdsr3b7 idxb59 23-/uw zd a/yels: it separation, 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 samed/a5xibrdbdy73k /u 3 l9w :sze2- sxd monochromatic light, make a statement concerning 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 reflection avngu wv5-m6rwd8/ pwqs1:vjlg )5 d9 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 interfer0- 9jho7rhczohz 4( cc (a1jkde constructively or destructively, depc4dhc7o j1 z (ohac- (krj9z0hending on their phase 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 traveling in glass, strikes an air boundary, t/cp7 f /us)dw;0mynaahere i0 nfd u7ampsayc)/;/ws

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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 reflected by a glass -a skmrt) 15dfe -bjn3v1o8j vmn (wh6surface, there isn6t(w8j r5 vb m-skf1na 3deohjv)-m1

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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 white light. As t+ ;e(6ciam2 db3f kkygo8khx; he film becomes very much thinner thanayoixm(k6f+d;gkc32b; 8 khe 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 l9*:igrfx2 jz9pn ssk2 vrs:4aight in magnesium fluoride, what is the minimum thickness of magnesium fluoride coating that must be applied to a glass lens to make it non-reflecting for that wavelength? (The index of refraction of magnesium flur 9:vsfsjn xzip*a4rs9:g 22k oride 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 and illuminated fromj, ywl44 pkou e0xbt;1 above with monx k 1y4p4,jutbo;lw0eochromatic 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 h sh,8o aq/fk86dn2 fv;8vk gbfor the fact that certain sunglasses can reduce glare frov8k8/oh8,ndq;26b a gk fhf vsm reflected 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 pou7pgy (lf.h* pw5+zf,d; u dgjm6rl+jlarization is defined 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 obtain polm3d0o 4/xrb rvfin-3 harized light in a dichroic material like a Polard vrhn3rf/ b-03mx4 iooid film?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the transmission axes of two Polaroid films are perpendicular t h0a6twd;ery9q/d 3ps o each other, what ih0d;r3sp/dy 6 t qw9aes the percentage of the incident light 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 the surface of a lawde gb:0wom 57q hpq2uet6j(6 ke

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The polarization of sunlight is great zde5 kt9gi/q)est 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 dd15renwj27+ 6tn wwy niffraction 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 tue eh;t7m 6l:qo be more blue toward the zenith (overhead) than it does toward the horizon.7q :t;uhe6elm 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 nm in a vacuum. It passes into glass, which hasu4bp/ cxy s4i9 intc:8 an index of refraction of 1.8p yb 9t4i:ui4x/s cnc50. What is the 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.oxjpx7 t29j i* It passes into glass, which has an index of refraction of 1.50. What is the frequeix9 7pj *jx2otncy 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 x .4f5.)h - wonzlck9 tcsjy;zof 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the speed t.wnf cxo jyz;k-.5 9hls)c4z 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 vacuum is founnzwnr; a1 u3a dq81lh-d 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 550 nm irt+j(vz6i 4uj n 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 found to trave+.c6vne* a9wn.mwxg emqre7fm i +3w4l 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 light falls on thw+mb*vh660 j bn: jfkzese slits, and produces a fifthj6hjbv z wm+0kf :b6*n order interference 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 lyik puy,8y1 ,- a1tv36ibysuq5os3 v575 nm falls on a double-slit and the third order bright fringe isytlub,k3vv,yy31ips si u58o6 1 ayq- seen at 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 experiment, if the separation between thejn-w4q z: fvgn:d; j4auzh49o two slits is 0.nf zwuj94d 4v4n ah:;joz:qg-050 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, th12:8ivi).jtdh d vlf pe slit separation is 2.0 mm, and two wavelengths, 750 nm and 900 nm ijfdp:1.hldv 82i v)t, illuminate the slits. A screen is placed 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. Monoc6:n bl- -td0r1 gqdwijhromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent interferend wn -6- j1lt0:qgribdce fringes?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A monochromatic light is incidekjokm9f )k sy /ls,ru9hg+ g-3nt on a Young's double slit setup that has a slit separation l+kkkgr/h3o-u s,js ygf 99)m of 30.0 mm. The resultant bright fringe separation 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, 4s v.l5f9g7dzt80 nm and 700 nm, strikes a plain piece of glass at an angle of incidence of ltzs9 7vg .5df60e. The index 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 consi. j92(iajun uo ttj)(k3xbo3nsting of blue light (wavelength 480 nm) and red light (wavelength 670 nm) is incident on a thick piecek j ntj) .otnju2a33ui((xb9o 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 width 0.20 mm. What is the angular wmd54;pgo8 w bqidth of the ce54m bpg;d owq8ntral 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 is 0.050 mm wide, is illuminated by light of 550 nm wav+abno8.x hgd:elength. .nhxoag b+ :8dWhat is the angular separation between the first two minima on either 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 single slit 0.75 miwgo sxai m (vcp/0 y scw1(,da9.8rs+m wide. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction patd0 cr .(,vsy1si pasi8(m9+g oawcx/ wtern is to be 1.7 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 incident onqx.i 46cc y+conn)l6ks o;4dq ejd1d1 a slit 0.20 mm wide and the diffraction pattern is p yck1q6 n+cdc6ejd41x4 q.;i)sdol no roduced on a screen that is 1.5 m from the slit. What is the width 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 nm0xs fcy(o mqdq4 pgs,c lw1;*: is incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the position of the first order dark fringe from the ofmx:4lccwys( ,g; *0qqs d 1pcenter 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 rz,.ixbme:opfq24 8h nm is incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the width of q,zirpe.4 mb :o8h2fxthe 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 centikm 18x6 surpggc r6d8kkd7;g: meter, its second order maximum gsk d6mkgd8prk186 c ux:;r7gis 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. The angle between the central max, /kx kyr*sx(9j.r rmlimum an(jxrrr/.k ,l ky *xsm9d the fourth order maximum 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 incidech: yl ;h )knxdg30w sb4)ksy2nt on a grating that is 75 mm wide and ruled with 50,00c3y)khw kx02; nh4dsgy:) bls0 lines. 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 wavelengt-)( wfk.z z nmyxdi4(6l, qevuh produces a first-order maximum 0.350 mm from the central mn6.qke z(y- z(l)wum,d4vixf aximum 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 second 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 6000 lines.,lo* sfp t x8fn2wa;r per centimeter ruled on it. What is the angular separation between the second and the third ord f2 ;wolf8r,sx.an *tpers on the same side of 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 spect3n yskuny5-y) x0:wuoral hues by a grating. If the grating has 2000 lines per centimeter, at what angle will red light (640 nm) appear in the first order- nswxuyoyun: )35k0y?

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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 useu4*xr1z6 ,c8zeh iceq d to calibrate a grating. If the first-order maximu*,ez 8 uehx6qz 4cci1rm occurs 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 wa7y/g qjx/sqw/f 5i67fop/tjh velength 500 nm is incident normally on a grating. If the third-order maximum of the diffraction pattern isq/ wpf7 gi/f/h 5 jyjosq76tx/ 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 is incident normally ober*,rjg/ezpzf- 6v+n a grating. If the third-order maximum of the diffractizr6e /-b,gf pr*+vjezon 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 fro7w/pg;li5 ommdr hr *f*:d8o,l bvk6cm another glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent h b,mp7rfmg6rd:i85o /*vlw* ;ocl k dinterference bands when viewed with light of wavelength 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 1.33. What minibxt .wif/ 6u9)pb7etk mum thickness of this bubble will ensure maximum reflectance of normally incident 530 nm wavelength i wk)/utp9 x.b e76btflight?

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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 wv u1w+)pzt)v,b .rhsa soap film ( n = 1.33). What is the minimum thickness of film)1uz+t v vpwshr ,b)w. that will give an interference when the light is incident 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 nonyfam hq*z7* 6*a5 ytcareflecting film coating (n = 1.30) on a glass lens (n = 1.50) for wavelength 500 n576*my*achzfta q y*am?

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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 in a beam of unpolarized light and the intensity o.biwp/s8 -a gkf the transmitted light is 1. A second ideal polarizer is placed in the beam with its referred dirswg-kb./p i 8aection 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 directionlss(+lg ay qy y0tb.h3): mgr; 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 ofk rsv/ q+clb11(qgkx1 glass at an angle of lvrq1+c b1s(q/kk xg1$57.3^{\circ}$. 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 combinamxq9itc*a p+b*9.mnqfjh 4-j tion. The transmission axes of th*hctjj p.m-q*fxb4 9 m9aqi n+e polarizer and the analyzer are at $30.0^{\circ}$ 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 kkjbxh. bmpc*/2gb+ :uu 0q6hthe Moon when its image reflected in calm water is completely polariz*q:jk xhbbgu b6uh2/0 +m.pc ked?

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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 tha5 fzdu7gnga-iwpv,,m 6n1iwb cc77 .rough a polarizer and then an analyzer. In this process, the intensity of the light transmitted is reduced to 10% of the inteni 67wgbp7 azwg5 n-.n1mcf,uida, 7vcsity incident on the analyzer. What is the angle between the axes of the polarizer and the 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 travehu- 0k h* wb3yogn(9qlling in vacuum and reflecting off a piece of uk(hlh3*qgonb09y w - glass of index of refraction 1.48?

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