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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 principl fqaje+.b*3f9 u 6flcde)n,nve.
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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 fan -d r(er2;-nn5 rpbwplse 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 attributedt ep3meaw .d:0ht ;4ou 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 ofj lzv.ob4 ),bsw5uzn 8 light 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 optic8 okx :bq3ebf(al 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 (wavelrd5g- eos8 q5:4ynhdgength = 590 nm), originally traveling in air, enters a piece of glass (index of refraction 1.50),o :e5h84dgg s5nqrd -y 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 (wav tfmx1jo*qz6u;g-9sch lg1i ,elength = 590 nm), originally traveling in air, enters a piece of glass (inde,uxg 6q zl- c;mth9*jsfogi11x 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 spreadx.xe5iegq21 ;x pd be9ing as it passes through a narrow s. e2d; 9xig5b 1eqxpexlit?

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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 suaf/sfv u78,d 8y3qnjuch as buildings, whereas light is not nf/7fnqadu38,jv 8 ysuoticeably diffracted. Why is this?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is responsible for alternating light and dark bands when ln9:ujpo m*f +uk-tck2 ight passes through two or m+jcmftk:o ku-p9nu2* ore 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 are9(vmkxaw xz q/;c1fz4 said 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 7rf( 4mtdrx ayi yx9(q:tlo,7 are in phase with eaxx7, dyiot4q:9 (ryf(mat7lr ch 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. sbh m3*qvnd 1+ ip8e+u d,i9zm If the maximum constructive interference is to occur at point P, the two beams mu hzdn evb+i13sm,p8+u9 di q*mst

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two beams of coherentvzeky+u2, wxp1 ; 4yn5q* xequ light travel different paths arriving at point P. If the maximum destructive interference is tqk*2uy w1uz,p5 4vnex+ yq;e xo 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 (w7;0 7csi zv d-dafzneither side of the central bright spot in a double-slit experiment, light from ea d 0zsi dnz-w7ca7;v(fch opening arrives

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first minima on either side of the central brighz8 b;5o h9,uoo0lnxjjt spot in a double-slit experiment, light fr5xj h,no lzb0; 98joouom 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 sidxa;11 jw:*4 injim:ntlb9ykkv 1 y /tae of the central bright spot in a double-slit experimelvwmj;x ta4:k ib9 1n1tn1ky :ia/j y*nt, 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 expemf vl ebso(59j: xq 2-f03hlperiment, if the separation between the slits decreases, what happens to the distance between the interference fringesjm5e-(9sel 0of pxl 2fq:3vhb?

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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 isgr j3px0qi +73q: wll3n) xutn 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 slit separation is cut ing 0wrt73l):3luxj+3qq xpin n 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+kdqay)95 jzpejcr+,l p(g2 n light travels path $P_1$ in arriving at point Q and another coherent beam travels path $P_2$ in arriving at the same point. If these two beams are to interfere destructively, the path difference $P_1 - P_2$ must be equal to

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a wave from one slit of a Y( l,w)yo+qaut4 d .bbooung's double slit experiment arrives at a point on thuqal4( ) wto.dobyb, +e screen one-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 ;f 4pivhls5,b w :nyu+s-*dmf obtain interference fringes in a double-slit experiment if the separation of the slits is less4s5n;y :wib up-dmsvf,* hfl+ 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 avjf, 50a j+il*bvh8u sdjacent maxima in a double-slit interference pattern using monochromatic li,a*5bhvi lj0+f 8ujvsght 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 explrs/3 rj 4),vr)pvv/x6 xzt uvtains why a prism separates white light into different cox)vstx3 pu/jvr 6, rr )vvzt4/lors 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 bl;c f1* ;deg1d)obpv 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 shn 7eu2q6e6 q1a6xb ffborter than 400 nm is called

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light with wavelength vowmh((rm; kh7hb;-hct (t3 vslightly 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 gre,xx.(zfl nt1bb- e6oaatest refraction when passing from air to glasstobn (beal-zx,1 .6f x?

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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 passiebzddeii-4 8;z b) 4ijng from air to glass?edb4ii; 4 zibez)-j8d

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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 with parallel sides, aadcp9e(e3 /tq 6imtsch /xed6mh2 /+nv s8k8lt an angle between vphadie9/8xek+ 6c qmtdnms/( lcs6h/t2 83e $0^{\circ}$ 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 uplp gw4e f(lf9 4+n.lpl two fingers, with a very small gap between them, and looks at the light source, she w9p4 fl nw+l(ef4g.llp ill 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 increases10(z7ey f e 4ucaek)hd, what happens to the width of the cenayeche0 fz)e4u 7kd( 1tral 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 li zl: 9ke-25ojnb 9batwnes per cm and the other one has 6000 lines per cm. Make a stat k2bzle: taojnb95-w9ement 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 separfel ehdui 8*pyrz.( (3ation, the only difference being that one grating has 3 slits and the other 4 slits. If both gratings are illuminated with a beam of the same monochromatic light, make a statement concerning the separation between the orr lz8hfi( .ee*d3 y(puders.

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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 hahf . vxa/i6b)k;6vbreflection 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 constructiveus( ro5o;,ohbly or destructively, depending on th br;o o,o(u5sheir 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 boundaryr w 8nhu7x1,sc, ther wcn 7xh81us,re 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 a gla. p+1twwdii c:ss surface,.t pi+ wwd1c:i 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 viewednni.nk//6aajt +e ume4c u+,s in white light. As the film becomes very much thinner than the wavelength of bm ,u .+aki/4u6 /+et nnesnjcalue 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 wavelfqwyh1nuw/ j-tql. ,2 *ay7jntbne., ength of light in magnesium 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 wavqyn.e jaq 1btjw2t*w,-uy ,nn f/h7l.elength? (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 fro7ed5 38r;f5e8u00q sxdj u8xrkaj wocm above with monochromatic red light. When viewed from above, concentric bands ofux 3r;0 850jd8 ce 5jxsofwuqe8da 7rk red and dark are observed. What does one observe at the exact center of the lens where the lens and the glass plate are in direct contact?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is responsible for the fact that certain sunglassb bnq-.puhl)qiy,ladgzf j5/0s:x 1 4es can reduce glare from reflected surfbq)ad l.5bhgx piz0- syfq/1uj:n, l4aces?

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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 d/pa avkh, j2v2efined 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 f1gztjq c5o1 jvrg-*, Polaroidjf1 c jr,*-ov5q 1tzgg film?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the transmission axes of two Polaroid films+m- l68lzd;ftz cpo2 h are perpendicular to each other, what is the percentage of the incident light which will pass the two filmsz zhcf 6lt-2m+d8 l;po?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sunlight reflected fromr;jv a)hr w5t u7ur/u5 the surface of a lake

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The polarization of sunlight p7 wi4xr5by6m 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 exg vd61 h*lgvy-hibited?

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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 b h,a.n5 bmrk 8tw9sq9s/id.zthe zenith (overhead) than it doeh 9 mk s8z.,t5swbbqrdi/na .9s toward the horizon. 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 p;ba,ti ut ot:e;eazy j.n4:lysf ; 9pe5jm01 glass, which has an index of refraction of 1.50. Wha0nj;aepee ,5u f ztt4ts;b .yal j:oy mi9:1;pt 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 vf9tcw5)zmopr5x.2h0 a1w/y( y xnjpu-qo j3 nacuum. It passes into glass, which has an index of refraction of 1.50. What is the frequency of the light inside the glafa p2w/.h50 5nnwmq 1zx3-tojy)(cxjupr9oyss?

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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 glrkv5i5x+ zhj xnqo3fdp-4 we. j*v ,p,ass, which has an index of5xvq e4zipr kf,,ho n.x*v+pj3 - wjd5 refraction of 1.50. What 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 0i7o6vwq d-y ai(fmv2is 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 550f :rdp hcl9)4q nm in 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 55030(s* o n(ypw jlxcul( 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 apart. Monochromatic light falls on these slitsej3 z8zz2 gucw u.:)pr, and proz2:erzc u g8pz)uwj3. duces 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 double-slit and theylxghx-wfp)97s5) jmo4 hk z1 third order bright fringe is seen at an anlx 1) 59)s7 oghyxhjz4mfw-kpgle 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 b+*n-nt :y 5,g,dl *hlyorid5igrhf2w etween the two slits is 0.050 mm and the 2r wl*hyyl*ioh dn5+in-r5d gtf,g : ,distance 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 c)1ip6jzk6 ;cauir p9 mt+nv1separation 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 dista+;u )a pi6mijc1k9ctvzr 6n1pnce 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 apart. Monochromatic light of wavelength 634 nm fbjc/d7k)dl-sfiwb. 1z: ok w9alls on the slits. If there is a screen 6.0 m away, how far apart are adjacent into :kzdkcb w.sij)1d-wl9 b/7ferference 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 incid,g,nda u8r t)sent on a Young's double slit setup that has a slit separation of 30.0 mm. The rart 8gu dn,s,)esultant 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 and 700 nm, s* ry8fja5x) xvtrikes 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 the angle between y r8jvx5*)xfa 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 (wavelengt mkv8( krpo)-wh 480 nm) and red light (wavelength 670 nm) is incident on a tor)v -pkwk8m (hick piece of glass at $80^{\circ}$. What is the angular separation between the refracted red and refracted blue beams while they are in the glass? (The respective indices of refraction for the blue light and the red light are 1.4636 and 1.4561.)

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  350 nm of light falls on a single slit of width 0.20 mm. What is the ankbq8pt :v(mm g4b2z 7tgular width of the central 4qz:tmg2 b km8ptbv(7diffraction 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 ir wb :jhl,4eu(v3dm 7ns 0.050 mm wide, is illuminated by light of 550 nm wavelength. What is the angular separationnm:l(juv w4 rbhe3,d7 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 aj+ior p09xfa84d 6fb2i .oa ug single slit 0.75 mm wide. At what distance from the slit should a screen be placed if the second dark fringe in the diffrafixgu 2i6o jr 9.bpa4f0o8+ adction 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 orijx hl 1c/f2;zjt.s( n a slit 0.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 r.jc 2i;/jzf1hx lt(sm from the slit. 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 mm. c;* a0u(jmz k2p6pllq An observing screen is placed 2.00 m from the slit. Find the posia2 lk06pzl p*qmj(c;ution 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 in w,-5 ,clrtjqmb4v4 wyt wqb/0xjj5(1*dg hc dcident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the widt/bh 4ctq0wr5,j *wmb w(4y-d5lj ,xqjtdcg1v h 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 gratin0wvh8x u)1ssb;,d p big with 7000 lines per centimeter, its second order maximum is at wuv h;bp81x0ssd) i,b$62.4^{\circ}$. 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 betwek5phfri7o1bos(j db- 3 5qg4mh w;sy(en the central maximum and the fou5 doiq h4kj fw;5gr7b -(mp1shb(y 3sorth 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 that is 75 mnz:. . u eg4dq8u;tcrqm wide and ruled with 50,000 lines. The second-order t.qn qd8:ur;z 4guc.emaximum 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 first-8hb1um 2/. vluot w8dtorder 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 wavele2lvut.du8t/ b81m whongth 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 linesu+y/xi 0(0;ern+fa1bx hzd af per centimeter ruled on it. What is the angular separation between the second and the third orders on the same sd+zb /0rx; i0a+1f (eyuf hnxaide 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 grating. If td)v 2qd rgeh86 m+i 3azpwl:l/he grating has 2000 lines per centimeter, at what angle will red light (640 nm) appear in the fiqmlidea+gzlhw3 v)6p:8d 2 /rrst 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 t(lwsvt(ult;f/ 0q(o3 ex yc 6whe first-order maximum occurs at ef(((wq twl; vx3tsu/0o6 lcy$20.5^{\circ}$, 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. Ifvaxl.(f kl 28j the third-order maximum of the diffraction pattern is observed at.a( vx2jllfk8 $32.0^{\circ}$, 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 + grju4j 7 suc*4ghnp1nm is incident normally on a grating. If the third-order4g h7n4sujp gc+1 rj*u 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 separated from another glass plate at one end by epc7ol h8c lqoww-b6:t o)50aa strand of someone's hair (diameter 0.010 mm). How far apart are the adwl7ocoh60l q - :ptc)ba 8w5eojacent 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 inderd5xtug3uq ob*60ad0 x of refraction of 1.33. What minimum thickness of this bubble will ensurdobt3ur gd60 qa05*xue 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). What iea+ eg93g ;ulcs the minimum thickness of film ea 3c;l9g+ue gthat 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 fipfuj 1gzcr *pg/ 0dc03lm coating (n = 1.30) on a glass lens (n = 1.50) fou30 jzr*/fd gc 0pc1pgr 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 c 3 :z3lg.lbeby*yeh 7unpolarized light and the intensity of the transmitted light is3l7*: cyg hzbeb .yl3e 1. A second ideal 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 itsy oyxi.m9* m vx/qwx750p g i(r2l*hfa preferred 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 glasfd .6+ulk)yoos at an angle of u+ .o6dylkof)$57.3^{\circ}$. 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 p kc,)km hus7hydy k-zx68ib18olarizer-analyzer combination. The transmiykiy6szhkc 7hb 8x8,-d m)1ukssion 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 thmr1sthwgsh5la33 zyv;p3 m /5e Moon when its image reflected in calm water is completely po 3 rp1s53 hwhms;5magvlzt /y3larized?

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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 polar03dx7mw 80,7dfy tsct m:eaog izer 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 a:dmfed7tgyxmtsc 0w8,37o0 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*j crrf6lz8q9 and reflecting off a piece of glass of index of refraction 1.48rlj*8f rq z69c?

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