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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 principle(f-vf 6r(c grd.
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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 statemenvnb8x +e8ma)os -n 6lot?

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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 l8arm;pl5 /dcjlo(h8) +h w afbight 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 of light is attributed3c9;tsaruroo d5,4rf 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 densi.t :5(xe )hiht m oc 1o2ixx,isd3d;wmty,

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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), 4vdqbov8z0p;- 95a ign c;ddfct/,za originally traveling in air, enters a piece of icgfn v, z bvo-qz da54 0p/t;;dda8c9glass (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, ent0v f r( r;s-x1wmyj-+uatu8zmers a piecw arrvf;m+mu xu1j t80 --zys(e 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 respx9o d(xce-.y cu)fe5juxy/h21 )at ho onsible for light spreading as it passes through a narrow slitx o9y 2xceyout- 5x) h.jcd(efa1)h/u ?

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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 lae zd0: .dres.-n5uwwarge objects such as buildings, whereas light is not noticeably da.z wus-d:.50w dreneiffracted. 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 bands7)mk/ze- qz4 e4c9; seoy r5jz(k t-ybhgfbv3 when light passes through two or mgzy;/5oezy z s()fv9jqrb- 3k e4 bk7hmtc-e4ore 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 coherent ix by7c ho2-4p1/po gnwf 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 screen are in phas ,:h uth6i0la1cbca n770x yfce with each,xnb a7f :a0iuch1l0yhc76 ct other?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two beams of coherent light travel different paths arriving at point P. u3a ezi jq tk6q+n)fy rs/790s If the maximum constructive interference is to occur at point P, the two beam0s3qa)qtr/eiuj yz7 +9ns fk6s 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 different patd)m(87l e8kit h0pdml hs arriving at point P. If the maximum destructive interference ish8p(t m0k de 7il8l)dm 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 bright spot i rnfe3*p7;b ttn a double-slit e3nr ;7bt pfte*xperiment, light from each 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 qziqoxz(u : -4py0.xncentral bright spot in a double-slit experiment, light from4 0-o (puqi nxyzzq:x. 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 of the central bx fgb2f j8jl;1right spot in a double-slit experiment, lighlx f1jfb;g82 jt 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, -5d 1p3 -mgdhcc+ vxrzif the separation between the slits decreases, what happens to tvpg-zhd md+3-rcxc5 1 he 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 between adjavfh+b-2jpk2 zt e1txj: :7zp ucent maxima on a remote screen is 1.0 cm. What happens tot2kjt-bfhp:jz+ p17 evx2zu: 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 travels pgk0( ypocue nj 5a1l7*ath $P_1$ 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 .emt8m 1w iww7experiment arrives at a point on the screen one-half wavelengttw .m7m81 eiwwh 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 obtaxtch s)( 6 nfd tz:3y1bich bjt3n-ag9h(c*j;in interference fringes in a double-slit experiment if the sf-b3 c(h9 ;jdty ih* nxbh zaccgs)tt613n:( jeparation of the slits 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 l4;f5b0v ig + zn1kdjca double-slit interference pattern using monochromatic lightilk;cf+ 41d vbz5 0gjn 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 ligbp1/8 b76l6lzjkjz6fl d a,6 ee *rtjvht into different colors it8jvpzf6b e1 6zljjek7db6/*, r6l a ls

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which a65- fxbopmj 1cy/ph t1llows 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 than 4tx b.o;ki,g8i3 (np dy00 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 slc(hmc2e.:jycm.4 ffl t4)7rdr*wu ih ightly 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 grea.m)w p mfoa-mr:, m5qitest refraction when passing from air to q:mmi wmo-5ma. r fp),glass?

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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 thqrd2/ ia gco;t* j qaaz;.u41oe smallest refraction when passing from air to gla adqrt*c /j1u 4.aao2ozqi;g; ss?

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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 platey fv*g3g wba*u26g e8e with parallel sides, atgw*vgbyeu2a6* e fg38 an angle between $0^{\circ}$ and $90^{\circ}$ with the normal. Which color emerges from the other side first?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person gazes at a very distant light source. If she 0jk4us :+dt 5kne8h 0utxl7z unow holds up two fingers, with a very small gap betw5d408+e7s: tuzk 0njxhtkul ueen them, 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 experim uwf s s92w;w9;rregp1zu0ri76/ kkdwent, if the width of the slit increases, what happens to the /0rfw swwwuzp9i72;su9e1 rg kk6rd ;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 40eb c-f;/2r+xk :kcj ui.q goh000 lines per cm and the other one has 6000 lines per cm.fqo :+chcik;j/2u-0 bgke xr. Make a statement comparing the dispersion of the two gratings.

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two diffraction gratings with the same slit separatiob.d .d2w*8i mre- w )ugy.ikdbn, 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 mr8iwibyw bd.m)*g2eku.. dd- onochromatic 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 refli at,;rs6x h-zjnin8,r7g y9mection 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 ligh8suo s9v wm,be06 ge;2y7 zhgyt waves can interfere constructively or destructively, depending on their phase difference. One consequence of thiwg8 v2h6you ; 70zessm,9gbe ys 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 boundz straxzgekcbk+)r(m-. ,h/ 9ary, therecbzg9 /h.r(,skmr-a+tz k ) xe 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 lightw(rb8 ( ui (nub5mjp2i, which is traveling in air, is reflected by a glass surface, there 2w(ujnb i ipur((bm58is

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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 zhf0 bgh6jp czt1 9s4.in white light. As the film becomes very much thinnjh0 164cz9 t.shz bpgfer than the wavelength of blue light, the film

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In terms of the wavelength of light in magnesium fluoriderjgn nyc1q)p+kt d17c7/ j 2nu, what is the minimum thickness of magnesium fluorid+7c112pnk t7nd jn) gy jrquc/e coating that must be applied to 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 glass plate and illum a)hzz auw,12jinated from above with monochromatic red light. When viewed from wj)1z a2u,ha zabove, 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 2ja8h ze6r va ,nw-u1dthe fact that certain sunglasses can reduce glare from reflect6vzhadnu -8j r2ae1w,ed 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 o,*rvs- u nds( ze1bwt2su 3z0r:/ebawf 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 polari jl l.ycm (5ki:1:qb376ouscrtmdz)wzed light in a dichroic material like a Polaroid fil)ql5 t6c1j b:iu7ckmom( rszl y.:d3wm?

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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 8n;h3m -q*viv)hli vr to each other, what is vh r8-) q;m3ihvnlvi*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 okjaeayy,)iqy1 /k3 mb)ni2 p7o i2+nof 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,2/pu.8ckp f ak9fl-qbbrg +nguv;w 0ht 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 exq*mk9id.x)0 vq p 7 9xc*dumjxhibited?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  On a clear day, the sky appears to be more blue toward the zenith (overhea1,f1 l 1tulrokd) than it does toward the horizon. This occk u,t1r 11olflurs 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 pas0no fxaw 2h// f,br2ntses into glass, which has an index of refraction of 2naf/xt/f hw0onb,2r 1.50. 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. It passes into glass, which has an i iby*ktiq4 4.pd h oi/p(1e*nfndex of refraction of(i b4d./*n1 4fehtippy*io qk 1.50. 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. It pass( 8yk/zoynd06a6 dgmbes into glass, which has an index of refraction of 1.50. What is the speed of the light in the 6amd68ydz(ybk/0g on 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 at m fon79+l8-114kngslpmvs x v$1.96 \times 10^8 \; m/s$ 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 to travel at :jc0bqsu;: 1 ghzdx 9y$1.96 \times 10^8 \; m/s$ 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 5t, hv yg(0f:xmq 3ga6b50 nm in air 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 apslh i + 99kfhab7:kreni* :pi-art. Monochromatic light falls on these slits, and produces a fifth order interference frinlek:*bi:p9sr + hh nifa7 -i9kge 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 frif h 7(czhr7jlf0+aeb) nge is seen a(e7z f7)0rjhh bflca +t 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 t;o:tg/f*z fz*hx xe + /qkuxr5he separation between the two slits is 0.050 mm and the d kqh:* ftxe ;5u/+r*x gfx/ozzistance from the slits to a screen is 2.5 m, find the spacing between the first-order and
second-order bright fringes for light with wavelength of 600 nm.

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, the slit sd8ds0*mm02p u diu a.yqri* xsy48cw v(/v0rseparation 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 from the central maximu*8 s xd/ sd *rri(uy2u0pq4. is mady08mcvvw0m on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin slits are 0.050 mm apart. Monochromatic light of wavelengoy.5 va w3lxz86mo( kgth 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacenw.k xlm6g o8( 35vozyat 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 wklgb2,w10uzpkx2 uu9t p1ufi(o; n4 slit separ9oz 4iw0,k ux1ul t(pwk;1gb 22unu fpation 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 tc:xhq kd+q )/mwo wavelengths, 480 nm and 700 nm, strikes a plain piece of glass at an angle of/: hd)q+qmc kx 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 consisting of blue ligc : 2dw1gg )ewj/d1h/krgzt.kx/e- fi ht (wavelength 480 nm) and red light (wavele2 h e./gj/gt 1)d e/-xckfr1k:iwwgz dngth 670 nm) is incident 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 singl,/5zguaz71qtgg f vk*gzv /7g e slit of width 0.20 mm. What is the angular width of thq g7az/* gzkztf u 7gv/g,vg15e 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, which is 0.050 mm wide, is illuminated bz, hhg;qu s,)yy light of 550 nm wavelength. What is z,u)h,hq y;sgthe 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 mm wide. At whautee .dckv6.c- 9y 9ofmrm(/ kt distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center dcfkee 99cmkoymv-/6 r .ut(.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 opq u*x p6vn *e,o(0lusn a slit 0.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m from the slit. Whav*qep (*6lx ,su 0onput 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 ab2g95kgo (et d slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the position of the first order bt egg2(k59oddark 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 okrp0q 0kg7rz e -x5m m0ql1+ppn a slit of width 0.300 mm. An observing screen is5px gqrr1kqk pz0le-m 0m+ 07p placed 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 c: 9oze+ l echcvqkp,/(entimeter, its second orderv/zlcqko: hp(c9ee ,+ 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 line fd3x;ab;s:*wk 7moyts per cm. The angle between the central maximum and the fourth f 3 ;owksmx;: 7tay*bdorder 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 gratinmime npe3f8xd9zi,h x1 p73; tg that is 75 mm wide and ruled with 50,000 lines. The second-7x3xnmti ei89 pm pd fz,;eh13order 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 au:b+g5l (lfot/ *vh5w dzvm -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 through the same diffraction grating. What is the wavelength of the light from the second source?luwbt /dfo-5(5+*vvma zlh : g

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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 linesu*b(zb .jro)8 wlr8+eg9o ce8x 2qmc j per centimeter ruled 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 withj8cx*2wc b8(8m9+lb er)uo zoreq. gj 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. bbky+*e y2b,qIf the grating has 2000 lines per centimeter, at what angle will red lig+b*byeq ,2kbyht (640 nm) appear in the first order?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A He-Ne laser (632.8 nm) is uswx lk;zjs0pda70*1f wed to calibrate a grating. If the first-order maximu awlkwfpz1 dj7 0x*0s;m 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 wavelength 500 nm is incident9w0wjf o5 .ipumk/jf/ normally on a grating. If the third-order maximum of the diffractionwuk/.p0f5 fjm9i/j wo 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 normi aljzph*w:-p)lo2 q;ally on a grating. If the third-orderl)l2wpqo:pj h-z; *i a maximum of the diffraction pattern is observed at $32.0^{\circ}$, how many total number of maxima can be seen?

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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A glass plate 2.5 cm long is+ek9)w co d*me separated 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 wavelength 600 nmo*9 w ek)d+cem?

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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 mini we3/u,d- eok h9rkft4mum thickness of this bubble will ensure maximum reflectance of normally incident 530 nm wavel/ur, 9we-okdtkf3 h4eength light?

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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 500 nm illuminates a soap film ( n = 1.33). Whatf.jon1q76pb z /eb9hf is the minimum thickness of film that will give an interference when the lfnbj6pheb /q 9o 1z.f7ight 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 nonreeqio+9 acj6 :cflecting film coating (n = 1.30) on a glass lens (n = 1+i qec6 :jac9o.50) for wavelength 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 l+cu:8)be nn jcight and the intensity of the transmitted light is 1. A second ideal polarizer is placen8)c:+cbe uj nd 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 ditda *v0p6e3b;vhlml 0 rection 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 flatiu 6 ao +h+))doxayia, piece of glass at an angle of ) 6h+x)oa adoi, au+iy$57.3^{\circ}$. 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-ana:xqw- i +qjx3th6fdwntj 5(:qlyzer combination. The transmission axes of the polarizer a qwxd hti5wqn(qj+-:6jf :3 txnd 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 b7rv5v,+szprd3f ;zv- dvo7o nj 63jk image reflected in calm water is completely polarized+5obj rr 33nj67;v -zv7sd vpf,vd ozk?

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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 polariz) o*qevu7o e+xer 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 polarizer and the anaq+ *e )oxue7volyzer?

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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 p /l+0*qmhb k -m51yltc)rgj gpiece of glass of index of r+1 mcy)hlrjp/ m-g*gkqlb50t efraction 1.48?

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