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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 princ+wzi4e/m7rjn iple.
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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 falsavzl aae0+.s2e 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 lig u79erh3k*sfs ht is attributed 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 o6fm bpff 9s 6.kkcf:mh*tz /z7f light is attributed 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 differen6:wvmf:aaz1 ps46zju 9 nvp0y t 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 ios7z*r pmx;+azz:ez . n air, enters a piece of glass (index of refraction 1.50), its fre7z;mz.zsp: xe+az * orquency

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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 in air, entext-;b 1 qyo6izs/c-tbrs a piecboqiy/c1 z6-ttx;- b se of 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 for light spreading as h7k2 6y vdks.sit passes through a narrow y.kdvss 7h k26slit?

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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 swlg; qujt7iw9 a :yn2y(19vzquch as buildings, whereas light is no9uw17zq2(;itj v :9nyy q wlgat noticeably diffracted. 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 l3ul(/f i;jbkyf -/rx n6gi4y yight and dark bands when light passes through two or moliufybf;gr- / x4n3yyi(j/6kre 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 be coherenem4 e y*itj pjzib5,y7zd var 7:(/o4qt 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 rays striking ali;6p*n nd ecru40-1c thspy* screen are in phase with each o**;nd1c0-uiyc hpr 4ste6p lnther?

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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 0ban2gs sr x;*different paths arriving at point P. If the maximum constructive interference is to occur at point P, the snr*b0s2gx a ;two beams must

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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 diff h01t2zu45 ujjhd4,n7doxlhc /(gq h qerent paths arriving at point P. If the maximum destructive interference is 1/ 5hug 4jlo (07xhhuq,c2zqhtd 4jnd 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 on either side of the central bri(78t1 nwdwonsght spot in a double-slit experiment, light from each opening a o(nt1 w7d8nswrrives

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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 brighfmi;ixi5uzg d3 c;zrbq hs.lq : +y *hk1.n1b4t spot in a double-slit experiment, light from eachu qxy4i 5cz: zrh;ql* 1mb.+1d.iibf; ns 3ghk 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 of the cent:ox vtz18hf s.0l ;q+jv vhw0uku5gg/ral bright spot in a double-slit expe uzvs q8:vglov xk0hu/ 10ftgj+. 5;whriment, light 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 separattysuonjs2:g 3 0r/ 5krion between the slits decreases, what happens t: rroj5k2 u/y0s stn3go the distance 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 oqtcuk10r95 labwjk3 3zb ncw+k5-/7gtjr5 v ubserved that the distance between adjacent maxima on a rekj5ubq5c/ 7wj3nk-b 1wrc9vral u0tt 5+z3gkmote screen is 1.0 cm. What happens to the distance between adjacent 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 travel6msw(wb4w h: d1b6 fais 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 arrives at a point t9t ul*zdanfg 76zf;-on the screen one-half wavelength behind the wave from7 tfanzt 9fgz-d u*6;l 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 interf+9il +tm bcvoxe9/ -oserence fringes in a double-slit experiment if the separation of the slits is less than vo ob9+t9ml x/+ic-esthe wavelength 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 doubldsgog7bgk9j du.: q* 5.4epbm73acjx e-slit interference pattern using monochromatic ligj7q 7mcp:gg54eo d .*bk3 ajbxd.9gsuht 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 separates white light ini k zc.c9tiv2*to different coloric* 29. tizvcks 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 allow r)q12bl er3j p1vd5nhs 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 slightly shorter t7dwhguf t(;74 ;pxce dhan 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 longen g/r4 -y77m9*uy2k,jrwap7rw ncboqr 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 greatest3ufhzsm8 bgv276vv1 j refraction when passing from air to glass jh 2vb1vs7gv6 zum38f?

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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 undewn;xrh 2sn r0x *m+ 31p;trtgjrgoes the smallest refraction when passing from air to gx0gp; n3wm*rxtnt1h+2 rr sj; 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 thick glass plate with ).tk)wrvga munefx9*.my. 7 y parallel sides, at an angle between y7mw.). fvy)ka* er m.tnxgu9 $0^{\circ}$ 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 sourcepv.1i5e1rzty.*xr5y d a/up+e9ibiz . If she now holds up two fingers, with a very small gap between them, and looks at the light source, she 1.a e.zuyr 9ipy/tbi*zer+15 vi5dxpwill 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 thcsz:ltwly/ts v 2-3c-:q fu5ae width of the slit increases, what happens 2 3vct/f-:scystwlq l-uaz :5to the width of the central maximum 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 lines perynl2odg7. 3qnt1v e* r cm and the other one has 6gt21 dvry3o7nq *l n.e000 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 sles azv3+aa ;y*it separation, the only difference bz3ae*s a+y; vaeing 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 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 causekno) giyq o3 nk5h57w/d by reflection 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 interfere constructivemam yrmkg5o0;x1u (w7 ly or destructive;15mmka7o(rgyumw x 0ly, depending 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, o49,.eg,lhhyb t5 evithereblyhiovh g4 t,.9e5e , is

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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 isfh160mzsq cr q(r5tih+:pw5 * op yjl4 traveling in air, is reflected by a glass surface, there6rroz( q0y*: hlh5 impwfjcp1t5s4 +q 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 white light. A w/ o4uxwsxq2o0 ;7iqns the film becomes very much thinner than the wavewo;o0 qx/24 7 wxiunqslength 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, what is thm/9m+g0,/id zktlo p ue minimum thickness of magnesium fluoride coating that must be applied to a glass k0dp/u zm/,9t ilmog+ 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 and illutmy1yj;4ev(uhy n) 0fminated from above with monochromatic red light. When viewed from above, concentric bands of red and dark are observed. What does ouy0y nefvm;h(y1t)j 4ne 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 certain sunglasses c jec m1cxph/,9an reduce glare from9ep, cxc1mhj/ 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, th,j z(ys7w2tdjy a*:id;lx j* ae direction of polarization 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 polarizmj g t4rgg .)a)yq0k6ked light in a dichroic material like a Polaroid film g )jr.kg)t k4m0qgay6?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the transmission (ay)2o mwtdu7axes of two Polaroid films are perpendicular to each other, what is the percentage of the incident light which will y)7o2uwtadm (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 .f exzkqd8i)0d(v9 yd 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 sun1kkzzk fc2d qus3a 6dg9t. ((qlight 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 diffracu*k6cpij2 7 mation 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 a h jje )i 5+zaf)85igvt zehu*7ui7-osppears to be more blue toward the zenith (overhead) than it does toward the horizon. This occurs becaj5oh)h+j ifaei-u 5 7 )iz7 tugv*s8ezuse

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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 ofja6oxo;xb 4f* 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the wavelength o oafo4*j;xbx6f 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.e efu2cigjm8.: 5c m;c It passes into glass, which has an index of refraction of 1.50. What is the frequency of the ligh2m;5e.uc8j c fei m:gct 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 vacuumorx uw2cau et6)24r bwr(kg(*. It passes into glass, which has an index of4rtac * )( bugue2r rwx6ko(w2 refraction of 1.50. What is the speed 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 found to travel atanr1/ 5g )6kbkx0lz ce $1.96 \times 10^8 \; m/s$ 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 in air is found t)wx j)dtkh gxd;a41d,o 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 trav:16socjgr fb;el 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. Monogc l*t wv8yrg wm:c).8q. b. nliz5f,jchromatic light falls on these slits, and produces a fifth 8gyw.qfc8 *tl.cb z) 5jvmw.ig:nr,lorder 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 575 nm;ujoyr-iy v8al*3o g1.o (zh x falls on a double-slit and the third order bright fringe is seen at an 3ooai( -1 r zg.oyhv8j*xl;uyangle 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 the two slit it64rm7-(l di6,yco*idp*l2r2wt k9 vlk b wjs is 0.050 mm and the distance from the slits to a screen is 2.5 m, f9b 2rl7kory (ti kl6 wcd,2p4*dlitwm i6-v*jind 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 separation is 2.0 mm, andmdm5mdr ; m xefa 6kr3wt81)4k two wavelengths, 750 nm and 900 nm, illuminate the slits. A screen is1d wm m5 ex6f)t4;8ra kmdmkr3 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. Mccpq-o *rtpi1p64 ro2 onochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent i2p14 rpo -c tcri6*qopnterference 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 incident on a Young's double slit setup that has a slit /bz.z/;llv b(yq)c: gsu,cnr separation 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 brigh(lcq slun/ r ;vb/cz )b,yg.z:t 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 bea yd9 faz:*skn(m containing two wavelengths, 480 nm and 700 nm, strikes a plain piece of glass at an angle of incidence of 60e. The index of refraction of the glass is 1.4830 at 480 dzas :n(9y*kf 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 ligg)lut9+ ,x:.urees p kht (wavelength 480 nm) and red light (wavelength 670 nm) is incident uep,g9e )r+s: .ktlxu 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 width 0.20 mm. u/ d6i mk(t(v1sz9-g9sgfkh ,q/ nzix What is the angular width of thukgsfzhsi xzm (k1i-nv/q96, 9/dt (ge central 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, whichu r1*sm4 7r gphdry1l( is 0.050 mm wide, is illuminated by light of 550 nm wavelength. What is the angular separation between the fir14 1rrrg p(*h7dsmluy st 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 mm j-ng)1-daz/tgk c1.;zgyrl uwide. At what distance from the slit should a screen be placed i-;gu .1zryt zagdln/g1)-j kc f the second dark fringe in the diffraction pattern 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 on a slit 0.20 qy.*mm nbdd;leq ztj02lla+,k ,) 0pt mm wide and the diffraction pattern is produced on a screen that is 1.5 m from the slit. What is the width of the centraljdqe zdktal, mp)0b+,tln. 2lyq0*m; 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 sl (u2yfwlnjp2)it 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 center of the2)w l(jn2upfy 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 wi iz 9;lmr: kz jp(sq1*9p2mauudth 0.300 mm. An observing screen is placed 2.00 muppj; ( si:mz 9rlukam129 zq* from the 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 centimeter, its second orde-;iym cl9rv (bc w+i:nr ;cn+iblcvmy r (9w-i:maximum 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.j sl4xzcs9b 737kl7b e The angle between the central maximum and the3x9ejs77 lb kc7slz 4b 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 incidem/hp(qbf4 d)s nt on a grating that is 75 mm wide and ruled with 50,000 lines. 4)smfq/( pd bhThe 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 pb/(v.uv4bn olroduces 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 b/( l.b onu4vvthrough 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 per centimeter ruled on it. What q,/jr*u,i cb xis the angular separation between the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light r *x/,j,icu bqof 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 spectral hues bymib)nzd1:6qp vz 0 c9n a grating. If the grating has 2000 lines per centimeter, at what angle will red light (640 nm) appeaznb )m1znq9 c:d v60pir 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 first-order c8)z5aawl+x k maxi ) awaxz5l8kc+mum 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 wawu k7)mdo09vrkyj / 1avelength 500 nm is incident normally on a grating. If the third-order maximum of the diffraction pattern / 9myoau jk0rk) 1dw7vis 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 wavelengt rf:+y ) h,6x;lfkvgzqh 500 nm is incident normally on a grating. If the third-order maxim,l fr)6 xk;hqzfy:gv+um 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 separat5ty 3kn)u+q+aje63p n7gb wsk ed from another 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 waveq 33 nuy 7abj5w+kps )etk6g+nlength 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.; w+ zoeh+f rdl2k2,6-c oqk:xin.k zf What minimum thickness of this bubble will ensure maxi6-wihxk+2;cn:re+,f .2 ko zo qzl fkdmum reflectance of normally incident 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 illuet5 -)3ge*6mca z7hwa. edrrrminates a soap film ( n = 1.33). What is the minimum thickness of film that will give an i .zed)rr c57*-rta 6w3egamehnterference 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 nonreflecting film coating (n = 1.30) on a gr,c:( lj6m.gy ;1dx 6gvpt ltv7jqa 4tlass lens (n = 1.50) for wavelength 50vjclqa p :4gy;jv,tl mt1. (t76gx 6rd0 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 in 6 s:hj qc;tk4jd 9bllp8mp6;a4 9fism a beam of unpolarized light and the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with its referred dik j4mb ;6j 46ap;t9ls9d lmhq:f8pcsirection 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 y6jt:l8p) ikih6)m kkpreferred direction 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 li*2zo1ezns,aha k02-s -x tcneght in air strikes a flat piece of glass at an angle of znsst-c *n2e e,oa kz0a1xh2-$57.3^{\circ}$. 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-ana6.pxgisbx;ij98a rn xwk1 /.z lyzer combination. The transmission axes of the po .9xi/izjx 1r.6xw s;8kpa nbglarizer 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 the Moon r/su)+3v-ezjj jd r0d a, hue0when its image reflected in calm water is completely u,d+3- j urj)ejh/r0ds avez0polarized?

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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 ai;yhd 8 dxk1/d polarizer and 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 polah yd8/ikd1xd;rizer 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 traveling in vacuum and reflecting of7l/hh ;/vb(egj 7beq gf a piece of glass of index of refractioh7b7 gg/bq;(h/ veljen 1.48?

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