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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 principle m6nbfd4fn-0u.
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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 statemejbtoqij 7oi8-fo5 .9q nt?

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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 attributed to ;xpvqyg3:z2ewedni1 z (w 80o

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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 aec,nk : hc8b,:5 rodmittributed 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 dip gz1 c2kx-y+sfferent 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 (wav(:/wuzkzzw b wjb17 +selength = 590 nm), originally traveling in air, enters a piece of glass (index of j:w/ zukzbbw(w17 +szrefraction 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), originallx+ (yw5 zlx yb8./e8qoy5sv pwy traveling in air, enters a piece of glass (index of refraction 1.50), its wavelenxwxysy/(8+ .pe58z wbvl yoq5gth

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is respoe; iq2l* ap1vrnsible for light spreading as it passes through a narrow sl elva2p;rq1 i*it?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Radio waves are diffric 4 ygt-p5x9nacted by large objects such as buildings, whereas light is not noticeab4 95-nt pxigycly 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 e,j cd+el 1h 1pmzgez8,e gl//8ykc2bfor alternating light and dark bands when light passes through two or more narrow sli / g8/zmeeb2hjlez,yed k1p+1clc, g8ts?

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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 coherentydjia rv ivpft7;-91+ 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 stp (,y udl9m dsjcu/;fjn*tc) 6)gqqz*riking a screen are in phase with e*nfz)gu jqtjs cp, dl(uc ;96m d/)qy*ach 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 poin f/ cwa2l.z7yz)+og) nk(pfo2c tc3yrt P. If the maximum constan2or 3 l)c)y tk c/7z+(ffoygzc.2pwructive interference 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 lightd 3p 3oy- wtwxvw6n46w travel different paths arriving at point P. If the maximum destructive interference is to occur at point P, the3p6wvwtyx6-w4own d 3 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 sidk7f y(1g0 + 3b fwc.aqbrm+vqve of the central bright spot in a double-slit experiment, light from each openin1a f qykv bcrm(+gq+. 3v0b7wfg arrives

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first minima on either side of the central bright p3*-03gmz g s7n40/r wonxbwrn -ovbespot in a double-slit experiment, lighto/nxbgms30vr7-g4o 0 3pbwn wr ne*z- 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 eithe7. 5 , qe+ew tejjd.vb89pdgetr side of the central bright spot in a double-slit experiment, light fro897p .e+ve g5jejdb q t,tdwe.m

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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, izzkhh- lr dkk))y;0fv ,27 tuff the separation between the slits decreases, what ha;7rd2-hfkk lf0)y),hz z vt kuppens to the distance between the interference fringes?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, it is observed that the distance betweeb,xgako ;-det qy17 o;n adjacent maxima on a xg ;a1edyo ;bq-ok,7t remote 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 t 2 izanc:5:httravels path $P_1$ in arriving at point Q and another coherent beam travels path $P_2$ in arriving at the same point. If these two beams are to interfere destructively, the path difference $P_1 - P_2$ must be equal to

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a wave from one slit of a Young's double slit experiment arrives at a m5pmc18i-ashog6 *tfsi vi xpf64h4yw:/uh 3 point on the screen one-half wavelength behind the wave from the other slit, which is observ 3hga*cvi5tms6ih 8pi 1uy 64pm4o-h s:/xfwfed 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 exp +2qguuuuh w2t)7p;nlqlbrjl 22+6 wc*sb0l leriment if the separation of the slib62;)+lulqwunl s wju*ll0g cp2r +2 qhb27t uts 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-slit interfere i-z uzeo4*q2/5q f gfs)fb8qsnce pattern using monochrom sfez)- 42qqzfq 5b8ui o/fs*gatic 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 into different ffga0,sf)9k jcolos afgkjf9,) f0rs 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 a3+dv/o kay .pnllows 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 calur 5i znf* ihz*7(j,: faykz*cled

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light with wavelength yri9-gj29 xjm h9pm3s slightly longer than 750 nm is called

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which color of light uni lop08oo tg,h-)d*uydergoes the greatest refraction when passing from air to glassd -gu)ot*y0opi8, ol h?

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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 kuz xfk:v 3s.b6me) n1the smallest refraction when passing from air to glasbznmve )u3: fxskk6 1.s?

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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 gli5o 73gtep -twass plate with parallel sides, at an angle betw iep 53-totw7geen $0^{\circ}$ 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 now holds up two fin k2mnwo:9yjm0 gers, with a very small gap between the:wy92oj0m k mnm, and looks at the light source, she will see

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a single slit diffraction experiment, if b/1jeh* qqjpu: :fd5ky /6komthe width of the slit increases, whay: qemuj61qo5f:bd *p/ hjkk/t happens 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 gratinney 7; xly ja)x3y9lklg:a1 -kgs; one has 4000 lines per cm and the other one has 6000 lines per cm. Make a statement comparing the dispersion of the two gratingsja)l e9x17 ay lky3;:nlgk xy-.

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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, thys usyld58z( -c 5w4ahe 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 statement concerning the seps8c-y(4d u5ysh5al wz aration 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 cavmg5j x8x5 4dk8 ejen1used by reflection and

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  We have seen that two monochromatic light waves can interfere construct . wb47apyvkwu 9id+.wively or destr+w.ww4vku 7ipdb y.a9uctively, depending 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 n-w:r)xqz. l ro 8hvtq edc4 j,rt0.+tglass, strikes an air boundary, there isnv8trz, .- d0rrt he:q qj).cl4xwot+

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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, whicmps +y0 fmomlps* *f9wy/ 0h3r ;k -eb1lk*tich is traveling in air, is reflected by a glass surface, there isr;f1fpc0tw309 lb **/klh kpsoeyi my*s -mm+

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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 vijeu74;qjn5wtbgg l /7ewed in white light. As the film becomes very much thinner than the wavelength of blue ln u;t 47/5 bqgjwjl7egight, 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 e,xui+1vmcb 2ys:s ,p 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 refraction of magnesium fluoride is inte1s,p2:,cby +v sxm eiurmediate 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 fr4xs2 3,m;lhcuh;pc ylom above with monochromatic red light. 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 diup ls ;;,chcmxy23hl4rect 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 *yo.pde/ s0i/zana ta92uk (gthe fact that certain sunglasses can reduce glare from /2 .o9nas0epu k iaa(dgy/*ztreflected 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 polawcr2x(,/s ujs rization 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 pozig* ho hg(1hto rb.25 gmw,1alarized light in a dichroic material like a Polaro2moggihtog1 zr bah,(51w *.h id 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 Polaroidk6 y)bji 1ymi6fb(5 c5zbndu- films are perpendicular to each other, what is the percentage of the incidendj cfy1bi-bzki56(n6)5u myb t 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 surfac:2 )pnmz;; r)iwsbfa )qs1p tee 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 greatest altmil.k 6a/sq:l ug*4 t

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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 exhibte80jpye e,s gn 2mhj5+ )t3pmited?

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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 (overhead) d bh2h;23mqty than it does toward the horizon. This 3h2htqy2db;moccurs 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 wavelengtmy nt +u*at +/)dc r(ai5zcww5h of 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.5a+ ud5 *) (nw/ycwcr5izatmt+0. 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 pbdx-mf8a2 f, o7qas;z asses into glass, which has an index of refraction of 1.50. What is the frequency of the light insi;,fqa s82z fdobx7am -de 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, 8 6co+o9m jegy4uufeaa+ac61which has an index of refraction of 1.50. What is the speed of the la 66 jauoeum++gf1ayc89c4eoight 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 5505c/v0t 9lrwejuerk* h 4nr9t( nm 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 i-ha 7 hdl*he32qcmd0n n 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 aioucd/u6 2qm 6. o0fygyr 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 s5 jh cv4j5u7lmlits, and produces a fifth order interfere574vjclj mu h5nce 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 ybzqux m+-7n* k -8gimorder bright fringe is seen at an anglebmzgm- ui*-+q8yn k7x 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 betweete7 *:06xvae/s fmo+w(ttqwhn the two slits is 0.050 mm and the distance from the slits to a screen is 2.5 m, find the spacing bettfq0 a6 (ms7+e txh:/v oet*wwween 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 is 2.0 mm, and twn0 go / adyd /m20k9p-itvi1zpo 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 first coincide with a bright mv2tkod/gdpyn/z0api 1- 0 9ifringe 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 aponfy i;ut(zmqasgsa3kh :8 /+0p8 (u zart. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apa;sgzt pamzs:i(nqah0 +3 of(8k/ uu8yrt 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 dwv ,3;l +tbsu+ qmkbsnrse8, *ouble 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 separation between the third-order bright fringe and the zeroth-orwss*tbl+rnm ,qe, ku8;s+3vb der 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.m)wi w l- 2,r(pepjcy and 700 nm, strikes a plain piece of glass at an angle of incidence of 6wp rmc (l)ejwp.,i 2y-0e. 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 bl5qrr) c3r)bo z(oa5giue light (wavelength 480 nm) and red light (wavelength 670 nm) is incident on a thick piece of glass a5o)a z5cirrg3rbq( ) ot $80^{\circ}$. 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 singldp h-tk-5 jy:+;/fs o *rrimtde slit of width 0.20 mm. What is the angular width ofm-o*pt; d-+j5rfrk /ytsdh: i 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 wid z asmpb)yq,;;e, is illuminated by light of 550 nm wavelength. What is the angular separation between the first two minima on ei )z;py;b s,amqther 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 0h 4;h4 +wps.h*vtebtf+u7vem.75 mm wide. At what distance from thes+wvph4e+*e . m7th h4vf ubt; slit should 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 the vuyh0 f77)fm uur9pqn56 p--lw 0swkodiffraction pattern is produced on a screen that is 1.5 m from the slit. What is the wisku9fo pn )r07wypuu7 5vw- fh0lq- m6dth 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 .crcro7xm;cmntf9 b**mh )w6a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. oxc nhm97fcc)m *w6t *r.brm; Find 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 slitzppfj,5e9i yix215 ky-n;f ld of width 0.300 mm. An observing screen ikyn5f;,z-y 9xe521dplpi f jis 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 vy(3og+g6 a k zr4+simgrating with 7000 lines per centimeter, its second order maximum s+rgvziog 46k3may+ ( 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 centralc/*eg sr2r gax6v5v+ hw3w fx7+ktp7y maximum and the fourth orde2v/g3x5 xa sct*hw+6r fwp vr y77eg+kr maximum is $47.2^{\circ}$. What is the wavelength of the light?

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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light is incident on a grating that is 75 mm wide and ruled 4c+c.k(tojkydcb 5:.jp ;hy rwith 50,000 lines. The second-order myrky5d t chj.ck;j:p4. +ocb(aximum 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 produces a first0hmy yhc35(z+z2ooaz.1h q re-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 z1(y.y c0zh oq 2hhz+5a3rme oit passes through the same diffraction grating. What is the wavelength of the light from the second source?

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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A diffraction grating has 6cw.n*hc ;)mefftro-6000 lines 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 grmwc)6* h.;f rofn t-ecating 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 4 c5(vcu(ivtr a grating. If the grating has 2000 lines per centimeter, at what angle will red light (640 nm) appear in the ficv (cu it4(5vrrst 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 :tml/m0ilj8a. If the first-order maximum occurs :8 0mi/mjtllaat $20.5^{\circ}$, 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 grating. If c8ods5zn5p1asj s)z ,7du2quthe third-order maximum of the diffraction pattern is oaz 8 7uspdouc5nzsd)qj,1 5s2bserved 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 wavelengia ocxv;n /2dhv :ug8;th 500 nm is incident normally on a grating. If the third-ordc;gd/ah uov;8n2x :i ver 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 separateuq1hs .ydlpm:31q n p1d from another glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart arp:13.1nhpdq y1ulqm se 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 refractioy f9mw rd-e3s::l/ecc n of 1.33. What minimum thickness of this bubble will ensure maximum reflectance of normally incident 530 nm wavelere:dswc-f emy /3l:9c ngth 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). What is yg*/4md;gkrz 0eoj-jthe minimum thickn-k0/ey r4ggom;jd*z jess 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 o u.jm ) hns)78h)kue 6edkfdu4f a nonreflecting film coating (n = 1.30) on a glass lens (n = 1.50) fore674me fu)hd)nj.8 h skudku) 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 lig qbez3m8k(j :vrzx rztd4xn0 c)r,04rht and the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with its referred direction rotated nq:4rz,8zr dx(bk0rt 3mj4)c0xvz er$40^{\circ}$ 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 rotatedr: .wtv5:qn(qu zo 5 s8cx6uqg $30^{\circ}$ 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 gz9 b7(tq ufway4*+* oov: syhpiece of glass at an angle of z: wb4o7 vtu*fy(aqsg+*hoy9$57.3^{\circ}$. 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. Thi e4i vuzm2s0.e transmission axes of the polarizer and t4 .zis0vu i2emhe 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 hbhg ab)1 ys-/reflected in calm water is completely polarized?) /agb-1shhby

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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 throug lfu; -h;c9xfqh a polarizer and then an analyzer. In this process, the intensity of the light transmitted is reduced to 10% of the intensity incident on the ana9flf;xq;c u-hlyzer. 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 i -,od r*lejo.piece of glass of index of ilo-odj, e*.r refraction 1.48?

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