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习题练习：Physics Unit24: Wave Nature of Light
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 作者: admin  发布日期: 2022-08-28 11:19    总分: 91分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月28日 11:19  切换到: 整卷模式

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1#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Huygen's princ 5 4z5etg1wq9j vv99fhwt(fijiple.
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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 fal4e(t x ueck))lse 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 attribute gqr s.xbft)k;:z(gf2d 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 ,a4hln fqakn8 gpbx5u b*7(-j 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 density/lyb9d( u9l9 n.vj)pt2bzu us,

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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), or2v zd;)peql5ajwem48 iginally traveling in air, enters a piece of glass (index of refraqdmle 5wz;4e28vp)a jction 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 i-rz:gh82ucb )l mhmg 7n air, enters a piece of glbgru)z8m -lhm: 2hg7cass (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 5at zfk.k ,:ndgg05cafor light spreading as it passes through a narrow slit?.k,g zt 0gka55df :anc

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Radio waves are diffracted by large objects such as buildings, wherea8x(blvejoga( *ea ; 5vs light is not noticeably diffracted. Why is a bgva* ;lvj (58ox(eethis?

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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 bandsl;s o h(f,kb n7:+uwet when light passes through two or mo s(o7uw,tfn hk;+le: bre 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 z),eeq.: gqb(asis+be 0ln5 bsaid 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 screen arhxfa3p:or5 jzr0m.-v e in phase with eac5-: aoh 0rxpfr3jv.mz h 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 e v ;ssv,0g1w-sgw2*q9p lu5ffslf4 x0vg1uj paths arriving at point P. If the maximum constructive interference is to occur at point P, the two bjvvug-qpvlf14f;g9s*es sul 2wx 00g ,15sw feams 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 differelzfsad eb 38-x13la3l nt paths arriving at point P. If the maximum destructive interference is to occur at point P, taall 81lsd3 3bfez 3-xhe 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 centpx v2 m8:ziu8kl-eab3p46qk j+e fzu-ral bright spot in a double-slit experi4i vl8xj83 f :mbk+zuu-ap2e -6zq pkement, 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 i gnhwkinwo3 5,7/s0yj cwd;qaa.11uof the central bright spot in a double-slit expenw ,d; uq1n 73jc.k50g/awohi1iy wsa riment, 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 2tg:u uw6eb o g9a(zi1on either side of the central bright spot in a double-slit experiment, light fo g(ageu:1w zuit29b6rom

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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 experij :ty0uw*kgo wap oy:;13.li ument, if the separation between the slits decreases, what happens to the u:uy:j.p*y t lwo3a0w1 iogk;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 betwed4g 0z-cxc fvz+r w/i0en adjacent maxima on a remw/ fv+ccz0 g0idzx 4-rote screen is 1.0 cm. What happens to the distance between adjacent maxima when the slit separation is cut in half?

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One beam of coherent light travels path 4)ug rx0tr) vr$P_1$ in arriving at point Q and another coherent beam travels path $P_2$ in arriving at the same point. If these two beams are to interfere destructively, the path difference $P_1 - P_2$ must be equal to

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a wave from one slit of a Young's double slit experiment arrives at a point o7c awzh4 1p*/u bj-gpon the screen one- /b1hjpcpz7u*goa 4w- 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 interfesb q96izn.jf;;wrhw4 rence fringes in a double-slit experiment if the separation of the slits is less than the bn;f9q rwjh;6.4zwsi 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 betwe9 hl /ettj//haen adjacent maxima in a double-slit interference pattern using monoc ae/h/tt/jl9hhromatic 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 separates white light i7r /cdc4mjm1 *xisvam709ufj nto different colors 74m9 cm mic0*a s7/ dvuxjr1jfis

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which allo d wo6ro3zfrky2 .03ofws 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 400 nm is cal mdif+6qb gbnm7rh1 )3led

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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 nmy3mu9 pgb9j rpwmfturw(56*- 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 7r93ec: qytmqp mw /3mvg8:y agreatest refraction when passing from air to g/c8mgt :m7e wqymq3pya: 39rvlass?

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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 from air (agsu 7.vm2ze w u2o;zto e;.zzu2am s2u g v(7woglass?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of white light is incident on a thick glass plate m*eqijmgt4 penu4s4 - wvy2 n0 j2s2r7qm0f6t with parallel sides, at an anglent4 q2eyrsufs47pw-g6 i02 2*mtvqjmn4me0 j 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 distanfd5wj 8ce 8.ib: obt(/fuc 1xit light source. If she now holds up two fingers, with a very small gap between them, and looks at the light source, i(wtdu/:5 ej1c x fo8f.cib 8bshe 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 the slit in7t1ku 6pq 9: rnki/rincreases, what happens to the width of the centra/6 k9inkr qrnup1 7ti:l 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 per cm and the othedxp) b 3fmpn(5wx,*z er one has 6000 lines per cm. Make a statement comparing tn* xb(e35mdz,p pfwx) he 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 separation, theekvb: u )pci)4 only differeuki) :) pv4cbence 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 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 qciq .+.hn7(mq4o(hb l,xg2 /xmfa uiection 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 in00 u2v )0tu3istwutru :ro p8:eg*lh yterfere constructively or destructively, depeg:pt0u8uwt vrr*030hlust o:2eu)iynding on their phase difference. One consequence of this phenomenon is

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light, which is traveling in glass, strikes an air xqjshg) ,hx:ul;y 25+ k;usjlboundary, therlh;52lqsj s kh;)guxu:j+,xye 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 k(fd;d x o1;ufa glass surfaceof; du;1kdf(x, there 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 f26;ykg4r ewk1n6s. pd xpof- * xpz9zpilm becomes very much thinner than the wavelength of blue light, tgzp1 drzypo* ;xk4p ke6fs-w6x 29n.phe 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 lightj,ry(gtzay63 in magnesium fluoride, what is the minimum thickness of magnesium fluoride coating that must be applied to a glass lens to make it non-rrt(yajg y ,z63eflecting 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 illuminated from abovqe9ko +/pt8,) dsxqw ye with monochromatic red light. Whektp 9e8+ qso,dy )qxw/n 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 5n-w o(ux3qt3s j;gkuthat certain sunglasses can reduce glare from r 3nu(g-k3;5uoq sjxtweflected 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,o vowcj;6;h i* 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 light in a dichroic material like a):f i.);0 psm yftjqst( vrl5j Polar):i 5 spmt trf(j0j)vqlys;f.oid 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 fiix(+hq5nsx / ra zd9x3lms are perpendicular to each other, what is the percentage of the incident light which will pan+i(hx xzas3/d95xrqss 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 ti td:bf-.s6bk he 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 sunlight is greateu;i4v lb(0n rdy5(g.l otdw 5ost 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 exhibitqett9nk+-i0 0/ okyxsed?

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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 n ,-qao t95e5ppzj) nnbe more blue toward the zenith (overhead) than it does toward the horizon. This occ)-npq ,zao95 ntep n5jurs 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 inlziv. mx3t : 8qdems0,to glass, which has an index of refraction of 1.50. What is the wavelength oftzqs,die mv :0xm3l8. 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 passesu hb -a x(ip:/vs0jr1r into glass, which has an index of refra/a- xp:1jrrs0ubih(v ction of 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 is /5qi9/-ikwwhx e)b23ffhc o n a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the speed of the light ik/bfiow2 qhcws) 5 -h /fxe39in 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 ny2jgjyl,/os.e1yf 3ff 0 y+grm in vacuum is found to travel 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 foun:rg,36ft qc imd 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 found to travw w27g2htw7fqj4 i (hg))fpivel 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 6.02,8+u caluy r,v uwew:0 mm apart. Monochromatic light falls on these slits, and produces a fifth order interference fringe u8:2cu, +uavyrwl,w eat 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 orderifacvc3hp 466u,5ny c bright fringe is seen ah n6ap6,cvc i54fucy3 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 the separation betwefo8/sc 1r 93y+x-ocvr3h0tl b eyl2zeen the two slits is 0.050 mm and the distance from the slits to a screen is 2.5 m, find the spacing between the first-order0rc3v2o13hy+ s/yfxoz l- 9cl8 reetb and
second-order bright fringes for light with wavelength of 600 nm.

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, the slit separation is 2.0 mm, and two wavelengths30f*crvdfea1rz 5v4 v, 750 nm and 9e1f rcdv 304vzraf*5v00 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 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,: jj(z tfo 4d2:de6 iwzp2aec apart. Monochromatic light of wavelength 634 nm falls on the slits. If theocfj2iz:(a: 2 4 zpwd, dj6eetre 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 lighj0i.bo l8n,ru+ o+ fint is incident on a Young's double slit setup that has a slit separation of 30.0 mm. fiolo0 n+j,8un r+bi. 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 two wavelengths, 480 nm anhoj5dyd p7oe6/ kjimu+.v- e-d 700 nm, strikes a plain piece of glass at an angle of incidence of 60e. The inde-5j epv6h ddo7 /+. kue-oiymjx 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 light (wavelength 480 nm) and red li te8iocz;:, qight (wavelength 670 nm) is incide,z oiiqcet:8; nt 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 ox+n o fdy 85jttm6,u,single slit of width 0.20 mm. What is the angular widtfot5mt6, j8uy nx,do +h of 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 is 0.050 mm wide, is)6pro7ynw:n 7n w*shn bf *5or illuminated by light of 550 nm wavelength. What is the angular separation:w5*7 sf nrn 7rnh6y)o*wbnop 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 widefkip,3 tg)xahzov .*4. At what distance from the slit shouz tfi oxph*g.)a 3k,v4ld a screen be placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center of the screen?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 610 nm is incident on a slit 0.20 mm wide and thpko l73ovw 08er p q**j8syyssfqwew83 1n, j-e diffraction pattern is produced on a screen that is 1.5 m from the slit. -jq1fswr3ow ksy8ye8v,w osl*p08epq7*j3n 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 b5nqy w cqt.lg16cu39incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Fi g3qn5 tw9bqy.clcu 61nd the position 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 0.300 mm. Annsah, z+(xtl ;yc.-n6 ieu8dqxw8x x* observing screen is plxs8*ain, lw6-xcxu(;.yzq d+ht 8xn eaced 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 centimeter, its secondvefayg:0z 3v(i xxu1; order maxim1 3 v:gxe 0i;(yvfuxzaum is at $62.4^{\circ}$. What is the wavelength of the light?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A diffraction grating has 5000 lines per cm. The angle between the central mz jc0e2huk/+-d s9wc qaximumez20 qs hcku jw9-d/+c 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 t 8ocnbqq0fn)- hat is 75 mm wide and ruled with 50,000 lines. The second-order maximum is seen qf cobnnq0 -8)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, lightk5eo46mz1ck sfy;g( rmr.t4 c of 600 nm wavelength 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 roey z46gt.5 km 1cfrmc (;ks4of 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 centimetz4gahxjp u- 1uvwgy0-nc93 /zer ruled on it. What is the angular separatx4n/zg zgu w1v9 pha-ycj-u03ion 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 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 gratingsu/ xr,gy :s;r. If the grating has 2000 lines per centimeter, at what: rssr,g /;xuy 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 sq4xl9 *dizuss0w+lgk3 h m4/ to calibrate a grating. If the first-order maximum occurs a+*34l/ki9z wu s ldhgsm 0q4xst $20.5^{\circ}$, 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 kt*,d1bga t0or bv2 4qnm is incident normally on a grating. If 4 ,1at bvb*kgdq0rt2othe third-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 inc)i rcbnxubwe: kb *q+*;(: bxiident normally on a grating. If the third-order maximum of the diffraction pattern is ob+b)e* x:*; b :nciqb rbiwkx(userved 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 fromi 17s ehx(p3sh another glass plate at one end by a strax(e3ihhps s17 nd of someone's hair (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. Wh8lvjnxk e c6i x;g22 5z.sh0jtvf/co9 at minimum thickness of this bubble will gec 2 vvo jxhf2tkj5. 6snc8/ z0ixl9;ensure maximum 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 a soap film ( n = 1.33). W+wraa0 6yg1hfarn8*im a75 f ha/)y qvhat is the minimum thicknessg aiqya)8+7fr a6ah*v1y0 r nm/h5wfa of film that will give an interference when the light is incident normally on it?

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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the minimum thickness of a nonreflecting film coating (n uwavlsa rt)-+:np:k4= 1.30) on a gl savnp a4lw)k -t:+:ruass lens (n = 1.50) 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 p g:/mazht1 8;5q xxhwplaced in a beam of unpolarized light and the intensity of the transmitted light is 1. A second ideal pohxam8pqw:h 5z g/tx;1 larizer 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 pret an5sszay5la o a436pbs;3 (pferred direction rotated $30^{\circ}$ to the vertical) is placed in a beam of unpolarized light of intensity 1. After passing through the polarizer, the beam's intensity is

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of unpolarized light in air strikes a flat piece of glas 1lckkuo(6t o j cz zl0,v*e).whqo/ 75b*digas at an angle of a z z /b.l6* lo50e1oo)c, dvikkhtu(j*7gwcq$57.3^{\circ}$. 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 trans*nnsfn jo1 /2)4q.vjn2wp abqmission axes of the polarizenjb4nof 12s.pn/w)a*j qqn v 2r 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 in calm water ixw+3k a bkc n43;(nw;zamgdnj p (t5x6s completel (; g(ncjka+xb3t d z46kpw5x m3wnn;ay 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 polarizer ands y2hneg ,w/(5ihr9zk then an analyzer. In this process, the intensity of the light transmitted is reduced to 1yhh z9g,s w2kre in/5(0% 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 traves+p)ji 7m1l, f3v ijarling in vacuum and reflecting off a piece of glass of in )3 spi7,mj1l ivjfr+adex of refraction 1.48?

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