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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 princip mdcit8v3f ryor) fimn2o -5:)le.
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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 4jvdvo p9 8ey4is a false 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 7 bbs-.+1ux8k(if2pdlfhbfz 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 of ligwbtaou7 :3h ue swd(,:a -4dwdht 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 o+ps)eopf3v qu7uyuh583 oshj 5hw5,af 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 p2-d7 e)vfpbcs fg gk0+.7atvji71ac , enters a piece cvdp+.7a) tbcas-g pfg i77j2 vk10feof 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)dg*jy3vdy pn4pmi9; = 590 nm), originally traveling in air, enters a piece of glass (ind*;4p 9j)dng3vyd mpyiex 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 it kcr6bj 2e1c *s dz3/ald7)jcmpasses through a narrow slit? radj1)b mc 6/k2 dcslcj3z*e7

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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 larghii(eve6vaow9d-jt*t+ ct e c 9dl )0)e objects such as buildings, whereas light is not noticeabld)(9cv )t-tid+clvie o*e096tew aj hy 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 light and dark bands when lighht-z+l53)jkafn p:qrn))ja+ szdey 7t passesk - )5t :aaz)ehd+nyr7z+qjpsfl3 j)n through 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 said37xz5do8)gps ilb ku)c b 6g2a 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 rays striking a scre,kay- o zfh-prvoo inyeb,a )*8 /6c3aen are in phase with each,a6hiooa-ryo)-zab e pfkv8 3c,/*n y 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 ar10fxn .e,i,bf pxx8xnx s8ko/riving at point P. If the maximum constructive interfenbnfokx, 8xei, s/1xx08xf p.rence is to occur at point P, the 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 difxni6 l8v5i v,kferent paths arriving at point P. If the maximum destructive interference is to occ8lk6v v n,ixi5ur 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 thel i9 w ;n-ti+8tlav,h+am*exu central bright spot in a double-slit experiment, light from e,ama +l+ t-98; il*xvut ehwniach opening 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 br 1j b,p8gncoq07mww3 light spot in a double-slit experim, 8w pjn0bw7c glq3m1oent, light 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 eid :nujt(hdnk):, dds.ther side of the central bright spot in a double-slit experind dh t:):,(ndkdu.jsment, 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 separation between the su sc: -rpn7j2hlits decreases, what happens to:ur sj2p-h7c n 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 that the distance b,x ;l qnwqm*f:x7khk u// 5nxletween adjacent maxima on a remote screen is 1.0 cm. What happens to the distancenxxq ;5l n,fh7xmw//k:*kqu l 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 lighhynm:5qdxqatl; c 4 q h7d4c,*kg*st7t 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 *(0 aa6af8a; aedf /p ox8-wle wz/ubnslit experiment arrives at a point on the screen one-half wavelength behind the wave from the other slitwa0/8 l f ena;-w*zx/baa8a ufp(o6ed, 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 up l(rq5o6 sc+double-slit experiment if the separation of the sli6o+lqsc pr(u5ts is less than the 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 double-slw qa27.hg ja2 4b(*rbtaoepo,b/5v nmit interference pattern usi/eht a.27q*v raoj,gp2o (nb4a wbb m5ng monochromatic 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 explains1d8ykktung(oxbkgyl- ) o*. ; why a prism separates white light into different colors -t.xbn y *dg8)gyoklk(o1k;u 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 to form -2cfed-rfz k; 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 sho+d poe,z) p xqo-,xpi4yf.+cprter 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 isf +5c .o+wr3c- pfepiu 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 refraction when passing from air tani tj(;(,cb eo glas;n ita,(be( jcs?

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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 passing1p1n;sb sims:pj0 /xx from air to 0sps;px1xib /: mjs n1glass?

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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 glavkcq00 *9juxhss plate with parallel sides, at an ancv 0u 0*xjk9hqgle 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 dist ji ) g.dmof:6ni;::bv 4nznlppc( +ixant light source. If she now holds up two fingers, with a very small gap between them, and looks at the light source, snc::.)pivnfzdji; xomn+g( pl6 :ib4 he 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 exp4k j 7fql.zbu-eriment, if the width of the slit increases, what happbj.u-k47q lf zens to 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 p b5c/s8pgtx ()sc :tuher cm and the other one has 6000 lines per cm. Make a statement c 5psg()/cc h:s 8buttxomparing 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 diffractio2 )czt+ng6h qysa)rk4 n gratings with the same slit 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 same monochromatic light, make a 2k)4sgcq) h6yrzn+a tstatement 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 oil4/ 4nfb(t txhh(gvpd* 2 * gjn+ani0lo slick are caused 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 mrh+tg7-0q+8xchnhzu glb-aig7c)* f onochromatic light waves can interfere constructively or destructively, depending on their phase difference. One - cuc8hbl h-x z g+q7hira)g 0f+*ngt7consequence 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,lu57 uhvkedi nq463a0 there dq eu74u 6l0ki5ahn3vis

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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 h6ly2,ho k/guin air, is reflected by a glass surface, there iuh/2l6g y k,hos

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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 v,w dic 5/stpn.iewed in white light. As the film becomes very much thinner than the wavelength of bl.n t/i,dp wsc5ue 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 magnesium2lk zf:n0sok-g8zqw,z4: zfe 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 refractionn 8kle:0owgz-2 :qzzk,s ff4 z 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 illuminated from above witlmb1umq0j) (buv 2v; g99 ifvxh monochromatic red ljgvf2i(9v mb ux9mu;01bql v) ight. 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 certain su(hggj:)-mump n;ymzjc 8gy5k w)p6 v8nglasses can reduce glare from reflected surfaces?p-mmy5kwg n8hjj)c )ug;m:g8pv 6y( z

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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,z/o 25-g0 padnhxwmx*/zy c4 y 7.d;mxy4wyal the 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 polarized l :/ebo4ottjq3yq z/6might in a dichroic material like a Polaroo: yqb qoze3/tm/64t jid 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 perpendi4vz3 s4szf ruej5.t g2cular to each other, what is the percentage of the incident light which will pass e3v. rj4t4 sz2g sz5ufthe 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 from53x+ mcep6h hk 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 sunlig*c4l,ak j m/o;w) lkkght 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 exhibited?iszr4v)vx 4oin x . tvixl438,

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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 towafs2 1tlb+ a mw:kpf 5ozew/j;*r+:2drezct d+rd the zenith (overhead) than it does toward the hs: w2z;5ttaw+ fmd*+21loze rd ec+ bjk:p/rforizon. 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 6w 2eo5/iy wvye)8-d1w scl(t qxyu kz8f y(4w700 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. w)/diosyyy c4f2-vw zwuy q (l 8txk e7(8w5e1 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 n7ovkf+6vopf) m in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the+f kp)voo6 fv7 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 into glass, which hann,as*263 3gv :gyhy hc:cnpvs an index of refraction of 1.50. What is the speed of the light s: h2:c g*yhnpnc y va3,63vngin 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 travegjq9p1 gr g9g kyavd-*83z3z bl 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 it 4w3 okw,rztu es+-+kn 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 4;btcvbruzflwdb5-m 2,0/ h 0c6qe foair is 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 mm apart-ix3ee:i qt n7vgsqxj; (e 41b. Monochromatic light falls on these slits, and produces a j1b7-tx(ve exq :q3 4giei s;nfifth 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 575 nm falls on a double-slit and the third order bright friezuj7nw3 slcxrs62q 4:/e+orw (r5wengwcw(jsrq 3 /s 6u ln572o4rreezew+:xe is 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 t/6yph2kt8i q qhe two slits is 0.050 mm and the distance from the slits to a screen is 2.5 m, find the spacingkq/2py 86q iht 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 experiment30-fro ufx*v/lvjpr(f x. 0oe, the 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 distance of0xjuv*oe . 3f 0-xr/ lpv(frfrom 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 ap (jqi2n2dio vifn37 8ogm,7ohart. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, howfgm(jdn732i ,vh7ooi in8oq 2 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 a Young's double slit setup that has a stzes:j8* n m,),meld olit separation of 30.0 mm. The resultane )e8 l j:mst,ozdm,*nt 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 9a*;-i vq+6z9yo-oe uz rmn tktwo 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 nm and 1.4769m; znt* kuo9--i r6o+ayeqzv0 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 9ubz gxa h6vu:q p70)rof blue light (wavelength 480 nm) and red light (wavelength 670 nm) is incqgupu9:r6ah x)0 b7vz ident 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 uxijn5 +24vi rmm. What is the angular width of the central diffraction pnix+5jir4 2vueak?

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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 waq50* -q lby-nu:m*t ekouqv9dvelength. What is the angular separation between the first two minima on either side q:l-5k nb q9mtv*u*0 qdy euo-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 wie+v8xusl3 (4uj2c/uveew3vcde. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern+v4j( 2uc/vexscu8 w 3le e3uv 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 o6o igg*+- bfuslit 0.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m from the slit. What is the width of thf+og -*iuo6 gbe 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.ff 7g)2l sd0u6gi +knv300 mm. An observing screen is placed 2.00 m from the slit. Find the positionu+0 n7lk)i d ggvf26fs 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 0.3 ) aqsrg)+zfg.00 mm. An observing screen is qr) sf+ ).gzgaplaced 2.00 m 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 centime8iyr iy(x *ai5idbz,1)uhjsii p4 7h *ter, its second order maximum is ziiby*7hy*5id spr4,ii8hjiua(x 1 )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 8rf5gl+ v1 h1lw4t9 mc1jtlu72kqo tycentral maximum and the fourth order kglq2jvft15 h7+9ttmcrul1y4 l o w18 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 w3*l8*p.fpb o ztzl.yiqrs /* pd7l,g is incident on a grating that is 75 mm wide and ruled with 50,000 l .z i .w t*lodbp8p7gp/*s,fy* lzrl3qines. 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 9vtspsb8v,)vo4c*g mt o*b *wfj/h; nwavelength produces 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 thronb*spvottvfo,m9; v sj 84g*wb /h)c*ugh 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 is the aal 3 :.pkjvkw0 ixpp2,/rfb w-ngular separation between the second and the third orders on the same side of the central order whenf-wv2l,3 pik b0w.rkp /:jpax 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 spectral hues by a grating. If the grating has6hmmae4 iff)y uy47p 8 2000 lines per centimeter, at what angle will red light (640 mhip6feu48 y )47fmay 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 first-orghiki,jj 7g3.1et s;ader maximum occurje3ji7i 1,h.;ka stggs 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 inciden1h)y2mtt* p;gmip( ;z gny8n st normally on a grating. If the thirdi y2p ysn8mg nzmp;1g)t*h( t;-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 normally on g7drm hs 7g+o(a grating. If the third-order maximum s+o mr77g (ghdof 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 separavmjmp + y;dw)+ted 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 bandsmmvp+dw j +;y) 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 op.4 weajlqx(+ azj29 mf refraction of 1.33. What minimum thickness of this bubble will ensure maximum reflectance of normally iexmwj(z4l 2ap. +q 9ajncident 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 ( u39-d7)cz dndjq 6 vacn = 1.33). What is the minimum thickness of film that will give an interference 796c )zvdd q-ncjuda3when 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 (n3g vz/cl4x5v g = 1.30) on a glass lens (n = 1.50) for wavecx vl3gzv54g /length 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 unpolarigwgt,43rp .60 lip0 ct)uejmb :o ehq3c zm;e5zed light and the intensity of the transmitted light is 1. A second ideabi:hc5p)3 cr4teg0z.0 , ;m wpu omtejeqgl36l 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 direction rot9) 0 87e+khrg1 i lwea(umefpjated $30^{\circ}$ 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-27sd 9 2vkpj.n pz0rh*nhxh i strikes a flat piece of glass at an angle of ns02j * x9v-d phpznih.kh27r$57.3^{\circ}$. 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 throug:0oqa+:fir7oq efhs3;0xnk u h a polarizer-analyzer combination. The transmission axes of the polari:7xi n hf;a:uq3soqr kof0e0+zer 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 when its image reflected invck v(s.tz2u+ calm water is completekst zvu+c(2v.ly 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 a pold/cu)ic 7r.z barizer and then an analyzer. In this process, the intensity of the light transmitted is reduced to 10% of the d7i c/z.bu r)cintensity 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 reflecting off a c(b6h.a;o ox /o)c2yvq 1zszqpiece of glass of (qo26 ;oa/1ybszqxc )o. zhc vindex of refraction 1.48?

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