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习题练习:Physics Unit24: Wave Nature of Light



 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 princisn)3dvqg2y 7 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 false statemenisqahxl,*v+jh 29b* t +f4wymdxu l7 4t?

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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 aa1rn0c+wc iv pv b;-*4v5no7rnvu; lcttributed 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 lighdx-tyu9pp 5qr x2 givta rq;;:k:v7+dt 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 different optical dezqd,(/vlmg )k a w0( a38xygwtnsity,

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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), originall xaah 3 j:gcp4du/1r s.:hay2xy traveling in air, enters a s2xa.:ad:u pc 3xjg4hh/ya1r piece of glass (index of refraction 1.50), 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 in air,73z:u 4uocfofnq 1h, p enters q:1zpon 4, u73offcuh a piece 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 if 1v8zj* fn 5mwd5sf)spreading as it passes through a narrow s)5m 8d nfv15fij *fwzslit?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Radio waves are diffractctz6vy61u o +/5vffg7 fwp- 9duu(dbled by large objects such as buildings, whereas light is not noticeably diffracted. -zctwf5d16 dyvg 7lu+f u6bvup o9(/fWhy 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 alterns(yd-6it y5a dating light and dark bands when light passes through two or more narrow s6isy(-ty add5 lits?

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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 coherent if they09b j:uxwqdip); g-a-td01 cji cq,hi

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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 wepd/l hp rxpo 7 h+jdo)69k67ob say that two light rays striking a screen are in phase with eac)prp7b6dh6o 7/ooh dl p9+xjkh 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 ani4,zq;f1; jwwli (ipai0tg 2t point P. If the maximum constructive interference is to occur at point P, the two beams mustaigt4;2ij,;wi pinl0w f(q z1

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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 arriving at pboh;/g;g cv6 uoint P. If the maximum destructive interference is to occur at point P, the two beams mus;vcou;6b ggh/t

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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 bright spot in a d40pih *7qdriv ouble-slit experiment, light from each oped*4 i rhqi70vpning 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-slit el m12y7ei.a4lxbvy ,9iygu 2ixperiment, light from each opening arri9giulaxm,ibe.yi2 2v ly1y 7 4ves

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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 central bri1mv :zh qs(c *z)5zezxght spot in a double-slit ex*)(xe 1qc: zsz5hmzz vperiment, 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 experi i-ei06j fc v1/cact3iment, if the separation between the slits decreaseic6cfj1/-ev t ca30ii s, what happens to 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 observed tha75 ypdz6 1m ,df5hfqwi5icy u+t the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima when the slit separation is cut in ha d 6yihmz+fp 7, f1cyui55dq5wlf?

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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 la-6 rmwk y+z.lv*zs )uight travels 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 nx5ym( xuaf )x6h*(kdh uwf(2rtl()cpoint on the screen onyxh*xu m2wd)c(((l ratu k5 6xf)(h fne-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 inx,s n6rl) df)a a double-slit experiment if the separation of the slits is less than the wavelengtf lxds)n 6ar),h 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 adjace 6fdnx3p4pll q311rip nt maxima in a double-slit interference pattern using monochromatic ligh3 q 6rix pnl4p1lf3dp1t 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 into diffhb u9hftp0 jryg 49,)terent color9h pb4t0fh),gy9tj ru s 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 alop6bis,39de :e u )u vsfyn.+ 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 than 4baog86ish0z * 3n1dq3qb5 - yo qn0lcl00 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 0g: -miihpm6xy 5nuv)slightly 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 undergomdt 16a:gp vin7 gquqzf 5a;0;mc1(bno) vm,j es the greatest refraction when passing from air to glass?u;n bm;pjo)amg51q7mcvzn,0 vi6:qgfa d(1t

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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 when passing fr cfx- i/n)bav5om air to glabf)ixn- 5 /cavss?

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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 aq h7( b2v x5e6smloy/thick glass plate with parallel sides, at an ayev a6sx(qm5lh27/ ob ngle 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 lg:5xrrs ) -6j)b9:dh/qse eqel. w ctfight source. If she now holds up two fingers, with a very small gap between them 6.xwq)s)e9 cf:dbgls: -h tq5rre /je, and looks at the light source, 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 of tvw)bh,xh /f+o7 /eghrhe slit increases, what happens to the width of the central maximuh / ,/be rv7g+xwhfo)hm 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; sz.,t7v5yu6uv) zwly one has 4000 lines per cm and the other one has 6000 lines per cm. Make a statement comparing the dispersion ofs7yzyuvuztv 6 ., w5)l 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 separation, the only difllve3(fr(p92 v+ca inference being that one grating has 3 slits and the other 4 slits. If both gratings are illuminated with a beam of the same monochromatic lighe (lcanvl9iv3 r p(+2ft, 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 causeddnku: + y d3ict5x/t 9d2;cddi 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 interc3cwf0hx9 -p sfere constructively or destructively, depending on their phase difference. One wxc-9sfp c h30consequence 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, ther-2zm-r:vkmn/iy2 y:qe+dcdz z:rid-/ v2ne:zqm 2+ym ycdk-e 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 is traveling in air, is reflected by a glass su-rc249;n// gzoylu u my mlxs7rface, there i /9 y-4rxm; oys gz7nm/cu2luls

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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 the filmlqgh629dsut4o cdx3( becomes very much thinner than the wavelength of blue 3ct9d( xh6ugod2q4l slight, 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 v +mk9/o*b7sw jwr1yb magnesium fluoride, what is the minimum thickness of magnesium fluoride coating that must be applied rk*vo/j 9 7wbwsm+y1bto a glass 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 ihd)g:2egna+: lk/m5ma4 umy glass plate and illuminated from above with monochromatic red light. When viewed from above, cek: ui)gh:y5 2mmna d/al4+ gmoncentric 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 certain sunglasses can reduyq dss))3rbqckas*3 rle;8z 9ce glare fro9)scq *z)8rsar l3 sk; 3debqym 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 px0kuhg7 z+wh:*yp nz2 olarization 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 polarized light in a dichroic material j40)f72laa ahkko8sblike a Pola0h) alk42aoj7fa s k8broid film?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the transmissions 3 gix jj5o45knghw:f/m-k l- axes of two Polaroid films are perpendicular to each other, what is the percentage of the incidenw- xo5-hl5kj3gi mf : 4gs/njkt 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 q(ugapdzsh + ap(/m1: the 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 sunligho dy;9 5 smr1rgmti.a;t 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 diffraction NOT ee kf62x9u qf: ca3xh1dxhibited?

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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 appea6ceh( 1l21w; vuwopn5 z/phj.nn4 bgzrs to be more blue toward the zenith (overhead) than it does toward the horizon. This occnngn poe6bz .hv(112 hwp/5ucljz ;4 wurs 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 vacuumi5jn xyqir1y3s7c +w :. It passes into glass, which has an index of refraction of 1.50. What is the wavelength of the light in the glas+ i: wjr17cqsy53inxy s?

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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 b)6*zw 91l-oawpfg wepasses into glass, which has an index of refraction of 1.50.g awzw-6 w9)f*op1leb What is 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. I2,a+ykv)wd-qgo d)wn t passes into glass, which has an index nqkdvdw)a-+2)o,g wy of 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 a.v /pe tes0ro . yg;06g:gcz.q gulo/wt $1.96 \times 10^8 \; m/s$ 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 it .,h8 r5aqzsc(m;2dzz f igf*s 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 c bf c-e;* 5a-osoc7p)m6wwbj found 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 uvpu919fy(gi5 6t/ necn i2bgmm apart. Monochromatic light falls on these slits, and produces a fifth order interference fringe at an angg2e56fn (1 gti vu9/9yipubcnle 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 bri9 4kml4ylz t10a2hdqo ght fringe is seen at an angle a2 9zkh ydlm4tq4lo01 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 slitp r4xb,+5ulta s is 0.050 mm and the distance from the slits to a screen is 2.5 m, find the spacing between the+xraul4p,t b5 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, thtpwm l8x-cv(t k3* hg6e slit separation is 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate the slits. A screen is placed 2.0 m from the slits. At what distw 3 hpc6x*tlgv8t-mk(ance 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 lighe7 aa8f t)usydq2r9 eys5yd61) grbn 9t of wavelength 634 nm falls on t7g 6d91)9eyaysf8ytd srqn b a)ur5e 2he slits. If there is a screen 6.0 m away, how far apart 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 light is incident on o fho-xjv1dva 9-: 9goa Young's double slit setup that has a slit separation of 30.0 mm. The resultant bright fr9- vf 1xoovoa-hdgj9:inge 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 con3c (:lwg g :p ,s:d:ba.dmxofi3h/z sxtaining two wavelengths, 480 nm and 700 nm, strikes a plain piece of glass at an angle oh(gzs d .:cpmfax:3 sdi3 bx,w/: g:olf incidence of 60e. 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 consist; yc*8ei /rp(ruz*m,fl d2wj iing of blue light (wavelength 480 nm) and red light (wavelength 670 nm) is in*dr8icwe u p(fz ,2y*;r/jlim cident 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. What is the angular w2uxozoh; xwfo10 ;k.yidth of the central diffrazou f; o;oy.xw2h0x 1kction 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 illumin5k 7y7h(imbk/jq igc3 ated by light of 550 nm wavelength. What is the angular separation between the fij b(cki7 7mq/k3yghi5rst 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 mmi ylsp*f lw23- wide. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is tpf2-il3 s* ylwo 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 mm wide and the dws/ w ibd/v70tmqu/b9iffraction pattern is v79i wm/bs wtq0d//buproduced 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 nm is incident on a slit of width 0.300 mm. An observj8xuax i,j5o5ing screen is placed 2.00 m from the slit. Find the position of the faj5i 5o,x8juxirst 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 incidentj3g;4e pf6imd:/hk9px/ tey n on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Fin:6 /k 9epdtnf gem h/yijp4x;3d 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 c0ucflgc8n7i0)uh 84 s rcngd(entimeter, its second order )s 0ngufc0 ru8ligccd(8hn 47 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 ps mf hi;ly4*1a cvg.;per cm. The angle between the central maximum ; lm.vg4* 1ascypfi;h and 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 incident on a grating that isb aa,synp;p0ynfy*u 6 b98m3r 75 mm wide and ruled with 50,000 lines. The second-order maximum is seen a6; *y b80bfm nap9yns3rpay,ut $32.5^{\circ}$. 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 produces a first-o pt0rtql 5 qh 1dg9fh*7hil6;bemezq(xa /5t; rder 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 ql iz1t fl 7 xed59;tha m/5pb0gh6er(;thq*qwhen 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 per centimeter rulesz9 4qr-by)9 d1i0az ih 6fpcpd on it. What is 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 of wavelength 5-zz9)q irah4dcps1 y 9pbf60i50 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 intoo4f2:i7 bxzgi spectral hues by a grating. If the grating has 2000 lines per centimeter, at what angle will red light (644zifxi2o b7:g0 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 us kj kop,ose( 4s-qcf7;ed to calibrate a grating. If the first-order maximum ofk4q- p oescj, os;k(7ccurs 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 dtr - thveujbx:n.obk/0 ) 7o3incident normally on a grating. If the third-7oo .tr0 nb)h/kbujdt v3xe :-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 is incident no2ey.j enx- kwq5ll9o c.o;dk- )nzsh5rmally on a grating. If the third-order maximum of the diffraction pattes..9kel 5lecd2 -qxk no;wnj 5o-)zy hrn 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 anotherm d ;zuqpw3aq5s1e74e glass plate at one end by a strand of someone's hair qeq;we74sm35a pz 1 ud(diameter 0.010 mm). How far apart are the adjacent interference 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 minimum thickn6 e cr,vexoip(7 ds:v7ess of this bubble will ensure maximu7exi vv ds(,rpce:o67 m 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 50d9hlqpu/wix( t4 b+7y0 nm illuminates a soap film ( n = 1.33). What is the minimum thickness of film that will give an interference when the light is d4hw b(itl/q+x7 9yup 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 ipk 2 a,aev54ia nonreflecting film coating (n = 1.30) on a glass lens (n = 1.50) for wavelengtva5ki4p 2,eiah 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 in a beam of unpolarized ligla* slrq3y*l3 ht and the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with its reall*r*ylqs3 3 ferred 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 d4l+fsl+p rf1qirection 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 8qr (gvr.-le lw*hh kyrgi6/4of glass at an angle of k/w8 rvqr gl-(46gl rh.yhe*i$57.3^{\circ}$. 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 combio;c,8 8pc ei9xndk75;u uwgdu nation. The transmission axes of the polarizer and the analyzer are atuuc8e pkouid5,gx8 c 97;;wdn $30.0^{\circ}$ 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 horizo+ ngnp-3 o9rn*ugpi,tn is the Moon when its image reflected in calm water is compln n9pg outr,p 3*ig-+netely polarized?

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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-cj)us5 cc15u+rjhy fe,mb7 n mar4t+ a polarizer and then an analyzer. In this process, t jc7-c ++s5fn5m uyre1hmr4 atc u,)bjhe 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 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 refle t)5pgmka:m24tfw r.bcting off a piece o5km twf:2)ptg a br4.mf glass of index of refraction 1.48?

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