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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: 游客未登录  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 princpt 3ypj o:+7s 3yfui*niple.
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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 sw cvyk4.5n wg(tatement?

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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 ikhs:zfuw i f0;dnj./n6xl4v.(dnp x 4s 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 + sj*u6vmrb ,*wr)0z teab8 opattributed 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 me5hlyrong0x vh4i.51u;p pe;d dium of 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), originallyku*m7cwi(h-v+d 9 gh q traveling in air, enters a piece of glass (index of refraction 1.50) kh*7whvu- iqc+ 9gmd(, 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), origi b( h370 14rtrtekqrttnally traveling in air, enters a piece of qt30 7t rbkh(t41rr teglass (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 it pd52w xi5mgfg /asses through a narrow slit?g d 5fi5x/wm2g

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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 objectsj y;-stjljhald d*/-2 such as buildings, whereas light is not noticeably diffracted. hd --/ld*lajs;2 tjyjWhy 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 alternat2h6l w yw(b;luing light and dark bands when light pas; uby2wh(w l6lses 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 said pk u)*yc,atf0 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 str hwbfd/6g0n(oiking a screen are in phase witobd 60 /hwgfn(h each other?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two beams of coherent light travel different paths arriving at poine 8swt pc5l2vadj 9-z6t P. If the maximum constructive interferew evajz28lt sd9c6 5p-nce 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 ligogp.b/7du3kn xsc/n190ore s ht travel different paths arriving at point P. If the maximum de/ogx0dk.3/1e uorpsbsnc 9 n7structive interference is to occur at point P, the two beams must

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first maxima on either side of the central qh 15qj6d3a3( onhh3rcqqn+u c:. whu bright spot in a double-slit experiment, light h36 (r uwqnc qjnahq.cu+1h3dq:ho53from 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 sidm gb ct8ggt+/)e of the central bright spot in a double-slit experiment, light from each 8)/ggmcgt +btopening 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 bright spot in a double-sl2te 8bkwk s, h(eyc6w9, vkg8bit eb9w6,g82 ,y hk sw(c8kkevbtexperiment, 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 o:8 cltuer7/gqq iea-i,vq pfn8/)2f, if the separation between the slits decreases, what happens to the distipn -eta) eq g:/fvc2q / o,87f8uqirlance 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 experd nphfhyf**5 4x2 )bdziment, it is observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima when the slbpd2h*fyhn*4)z5x fd it 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 trab-/jc h/) txdf,vgb8avels 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 slitd( kg;ow q. t,ind epzl4v-//v of a Young's double slit experiment arrives at a point on the screen one-half wavelength bd zpk4(,tilq - n;evo /.gwvd/ehind 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 in a double-slit experthj.krbjt3j0dr8 u *pd zo1.6iment if the separation of the slits is less than the wavelength of the ld3kjo u dt*6thb 1jp r8jr.z.0ight used?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The separation between adjacent maxima in a double-slit interference pa-k f6vhgz.. qcttern using monochromat zvkc-6g. f.qhic light is

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which explains why a prism ia2ip5vuioj2 az:3 k+separates white light into different col p+vi3uiozk52a i2ja :ors 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 iyd;u48nb x c)f:qhw7tb5g 7y:owxtcn v1aj2 6s

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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 400 nm is7m y0b74wofr4x kk u- i;iw/y c;/okei 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 slighthy b/zarv 9u.4ly longer than 750 nm is called

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which color of light undergoes the greatest refra032y zw np;ekqction when passing from air to glassz k p2new03;yq?

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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 refrac3t))a ajltwx 6tion when passing from air to glasl wxt6 )j3)atas?

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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 incidc /fl1lkz yr(/ d wapd90p47wrent on a thick glass plate with parallel sides, at an angle betwee kwc7w4r9/p/ ad1fpzl0dlry(n $0^{\circ}$ 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.w,;2.effv cuvw9s 4qm.vlz z she now holds up two fingers, with a very smalluf29 v,4q..zcf vezws.wlv m; gap between 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 experiment4:x* vwwlledf9u9oo rgn88 9k, if the width of the slit increases, what happens to the width of the central maximum on a scre9 g8 n 4ovud9 wk:rell9*f8xowen?

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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 per cm and the other one h*okupqyp/2 evie/30kas 6000 lines per cm. Make a stat e0qe/okvpik *u3/py2 ement 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 gratj:c8vcb uw qfed3 822zings 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 lighc2v82ecqj :f dzu38b wt, 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 refl 7rs)le zvg*9ewqr3c0ection 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 constructively or jgt50,aicpify q2om2m(+f 9 xdestructively, depending on their phase difference. On2c,+m(i2pfa 9xfgmyj o05t qi e 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 bb7hxbwh4 64 p dza5j/coundary, ther5hz 4h6bbw 4px7dja/ce 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 refkdn)e *rw7hk1 (jlz(qlected by a glass surface, th(qj( l7*r)1 kndek wzhere 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. As the film dw:2qpfc q hq1i c9 ykpkf740/becomes very much thinner than the wavelength of blue light, th2pif kf7q:h9wd cpyckq/ 104qe 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 fluo8yj,ftwz 1rt,31 k ylbride, what is the minimum thickness of magnesium fluoride coating that must be applied to a glass lens to make it non-reflecting for that wavelength? (The index of refraction of magnesium fluoride is1,yjtzrkfy ,l3wb 8t 1 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 anb+p f5jl/ajslvg* n8p -xa*8 gd illuminated from above with monochromatic red light. When viewed fro 8*bngllfavap- sj *5j8p+ gx/m 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 cerps )ha 6sbdvn-.ziz+,tain sunglasses can reduce glare from reflensvz,- . i)dabpsh6+zcted 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 polarization is zig)we ixl p*(+wo (b2defined 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 o4z85lyy 9pc d 7tdi4ya dichroic material like a Polaroid 54y dty9ydiopc z847lfilm?

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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 perpendic,i ibip 6jp0g8ular to each other, what is the percentage of the incident light which will pass the two fig0ip8, pij6 iblms?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sunlight reflected from mi dw79h.af a8:9j wq;, sfpiithe 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 su(oe0q ;ky;-a fu e0f4ur 4*eerxv)rt znlight 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 diffractio b3ljadk03+re*1dp8d wjn iaoc,p 2sr 5*rt.wn NOT exhibited?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  On a clear day, the sky appears to bsts1 jgtg.x:ijw7p5 4n mx2 /g/rwe(tae.2p ye more blue toward the zenith (overhead) than it does toward the horizon.2w 1x5ri ts4: g2.jytngawg7tp/j .e xeps (m/ This occurs because

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of light ($f = 5.0 \times 10^{14} \; Hz$) enters a piece of glass (n = 1.5). What is the frequency of the light while it is in the glass?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light has a wavelength of 600 nm in a vacuum. It passes into glassli1)k8hdo9tjror gw )/ el:wle+h +j ., which has an index of refraction of 1.50. What is the wh.w oi )1jl)ler9l go +/dhwk8 :ejr+tavelength 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, wi r 4).rn)fyrehich has an index of refraction of 1.50. What is the frequency of the light inside the y. ) ifr4r)nerglass?

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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 pass3tj,fmhqu+i4+ (sc t *.ve bsqes into glass, which has an index of refraction of 1.50. Whj 4ui tt,c +v mbe.sq+*3fhs(qat 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 tr9 ln( m(xo,6 +krgkgm y,o,yoqavel 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 in air is found tqsmj xn nd+)+;qu6 1jmo 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 inx+l:bd.n6,xhfzjo i p * 0m5fq 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 apart. Monochromatic light falls on these sz1 )cfm k j00.bttuj l, tl4lrnb:n3-rlits, and produces jnm4 ckrb-tt1j) .ullfb,0tz 0n3lr: a fifth 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 double4q5. f)zbls bp-slit and the third order bright fringe is pb5)zq.sflb 4seen 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 the tw8x 3kbj7dn1v u3 p qytskx8/8go slits is 0.050 mm and the distance from the slits to a screen is 2.5 m, f xg3k8 d8upk8/ qn3 s7vxy1tjbind 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 ispdxdt.ga f2j.s o4* p.m5/6 aw5akjwq 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 maximum on the screen will a bright fringe from one pattern firs g4kw26jqop.mf*d jxdats 55wa/. ap.t 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 bhi.+- o (syrlapart. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent interference foylsbhi .(-+r ringes?

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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 in3g t)rqevv-6b7 /lnnzud f2a 3cident on a Young's double slit setup that has a slit 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 sepaanz2tql)evv/dg3- u 7n b6f3r ration between the third-order bright fringe and the zeroth-order bright fringe?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel light beam containing two wavelengths, +fz 0k;vfq8:; rc ihok480 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 1.4760 at 700 nm. Determine thqzv;; rkho+cfk8 i 0f:e 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 light7h7x inip s,j)ernktg uqfx1 8u1a.-k,z u*/x (wavelength 480 nm) and red light (wavelength 670 nm) is -isx.)1jrfgp/81x,*z, 7t uknuqha7nkieux 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 o8(1y,aq q v.:xrz1mup3pz)gz n4s ihon a single slit of width 0.20 mm. What is the angular width os y:g3ivozaz)4pq1mh(r qz, 1n uxp.8f the 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 g6:pbd- r iu,u xi9+e v-maen-is 0.050 mm wide, is illuminated by light of 550 nm wavelength. What is the angular separationg :9bxpvu-rda -i,ee6n-ui m+ 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.yk d8n1o+ itx i2++vbd At what distance from the slit should a screen be placed if the second dark + n2t y+8bidd k+oi1xvfringe 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 mm wide a;z 0uu5qsbt st;*kmi9nd the diffraction pattern is produced on a screen that is 1.5 m from the slit.iuzut5 mkss90*bt; q; 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 mm0,r b dbl/s v gb96k8)gevs bjb:7oh2h. An observing screen is placed 2.00 m from the slit. Find the position of the first order dark fringe from the center /9r )bbg2seb,o : 6d8svbb vhj7lk0hgof 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 inxf/ 9gc,qj8x+4yq32i oaeq br cident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slito8ax ix3e9b, g qq4yqc r/f2j+. 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, it -yh7vv*owu zh y,3hg8s second order maximum is7 wgh -hv ,h8zy3u*vyo 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 centorcx h9v)a4sp*gut6+ n zl 2p;ral maximum and the fourth order maxip 6ur*z)hst;c alpx9v+ og42nmum 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 is 75 mm wide and ru5+.6fw.j spuyo e 7tualed with 50,000 lines. The second-order maximum.uasj6yf 5p.w7o+ut e 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 wav:pnwyg n2*sjko .;nb5elength 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 passesg5o.w2 ;nb:*nkj synp 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 centbl )kwlv :z4v+imeter 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 with a beam of light o:vbzll)v+ 4 wkf 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(m;kul j2k bp9 grating. If the grating has 2000 lines per centimeter9mjk 2;(lupkb , at what angle will red light (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 used to calibrate a grating. If the first-order max-lf mmp e-i2(mimum occurs at-(f-mmpim2 el $20.5^{\circ}$, 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 incident normally on a r565r,leshbv1( m pckss ju10 grating. If the third-order maximum of the diffraction pattern is observeu kb01lrh5,sv mr cps 51ej(s6d 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 a grating.)l:ab9 h 3om4zrmlv,f If the third-order maximum oolz4 ra9 b ,m3vml)h:ff 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 separated from anotoz49cfk 1at/-e x 6wxoher glass plate at one end by a strand of someone's hair (diamkxo/w4 z-f9ot xa6c e1eter 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 refrx cqoh 2z:d1le-m k*y+action of 1.33. What minimum thickness of this bubble will ensure m q-yd+m*c 1:o hekxz2laximum 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 illuminates 4: ukrbifap,5; bpma x e)mn0,a soap film ( n = 1.33). What is the minimum thickness of film that will give an interference wmranpb k0;xa5f) p4em:, iub,hen 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.ly)m7qc iuk-0j c 2l3q pgsqpjij-/2/30) on a glass lens (n = 1.50luq-i-l/ipjcjjc) kymg0/ qs p7 2 23q) 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 placedy 8t: rava2g (wuiy,+o3tg d*n in a beam of unpolarized light and the intensity of the transmitted light is 1. A second ide *ov2n(gtra:t3+ 8ydway ,gui al 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 rotatmo2-ktyr.z8 p, ads t/ed $30^{\circ}$ 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 of glass a vohjqsdqr t ixa w pyh.fi08126*87)lt an angle of qs.8a)ixjlt 8v *1wdq o hih0 2py7rf6$57.3^{\circ}$. 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 combination. The tran;mo e.avj2kz)o ou7hf a(;eg:smissi.:ogmho e(2ouvaej7)afz ;k ;on axes of the polarizer and the analyzer are at $30.0^{\circ}$ to each other. What percentage of the unpolarized light gets through the combination?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How far above the horizon is the Moon when its image r4rit +w7 rx 6pum0lkv45fk:po eflected in calm water is com4rxkiv t+wo:07rkulp6fm p4 5pletely 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 polaric/ g e(gz53iybsj;p7qzer and then an analyzer. In this process, the intens gi7zp5g/secb y(q;3j ity 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 ford8k r3kscxw1v8 d5o k)lw:f21pu 6esz light traveling in vacuum and reflecting off a piece of glass of index of refraction 1.4p8v5 :z312 wwrx8)suk kelfdod6kc 1 s8?

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