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习题练习:Physics Unit24: Wave Nature of Light



 作者: admin发布日期: 2022-08-28 11:19   总分: 91分  得分: _____________

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

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1#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Huygen's principle.( otaca*/uo6j
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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 stq)eaorf9 :ql rkmkxc3 z0:9h z1n(t: 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 is attributed tb-h31a/7jdwg z /k goyo

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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 attribusxdmf:/cx3 4q mjpe pe x5;98dted 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 en c5 jw b4di.mm anqw,4i3a3 8z;g:ftrmters into a medium 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), originally traveling in ai iz+wx3mtu0d /r, enters a piece of glass (index of refraction 1.50), its freqw/zm3 xid0+utuency

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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), originallyq 1bd8 ,y.dvsg traveling in air, enters a piece of glass (index of refraction 1.5b ,8qvd.sgy 1d0), 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 respons 0(bk - ia;ln2)ayq+xaak k6vwible for light spreading as it passes through a narrow slit?b(ql2 k0vkwan;xk-) i6 a +aay

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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, whereas y/ti-:hu1yr *s axs-dlight is not noticeably d dst*:-yair -su1y/h xiffracted. 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 light pahxad6(b2tvy-7 /o 5msvg uy-msses through two or more narrow slitsya(m2u6dh 7 g /5x-t-mb yvsvo?

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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 saids gkp.:5 j4e86:hcqbr m3jgj b 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 wwm .krskq )lkkbk.i yht51+0q: v z38we say that two light rays striking a screen are in phase witkwqz 80 )wk+1y.5vmlb s.khk r:3k tiqh 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 point P. If thcnq 7 ny+z6y e+bw w(ejm k7jg)41tjr5e maximum constructive interference is to ogw1+4jr bn n 7qt)+m6yzy5e jk (wce7jccur 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 light travel lkv b;v3b /;;7i1mplzdk(j bpdifferent paths arriving at point P. If the maximum destructplib(3 ;bmvl7k1j z k/ ;pvdb;ive 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 brighth), jyt.p7h uf un3k-k0x nao8 spot in a double-slit exper8u0tkn apnyhujh.7) 3 fox-k,iment, light from each opening arrives

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first minima on either side of the central bright spot in a double-s +5oe w.znyx:jlit experiment+x. :e5ywz jon, 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 on either side of the central bright spot iz/gj1ccc-bz cdxj76 ,n a double-slit experiment, lxc1 zczjjc/g , 7db6-cight 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, if the separation between the tav4u : xnp9uboo 8k+2)ednc 9slits decreases, what happens to the distance between the interfere2)cdbuu9o9 :voa+ tkp 84 nxennce fringes?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, it is observed that the distance between adjacent uqah.qi +x +g;maxima on a remote +gaq+ixqh; u. 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()s ejcy(uyby .l gs,l -(sv:z 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 Young's double slit experiment arriv*eq jhcwv:w 3.es at a point on the screen one-half wavelength behind the w*:vej.3w c qwhave 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 impossibleam g(u ,st/e,v to obtain interference fringes in a double-slit experiment ,v stae,/gu(m if the separation of the slits is less than the wavelength of the light used?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The separation between adjacent maxima in a double-slit interferenc z.a-ipfk7x x8 wpzv2du/9 yeta.+mw-e pattern using 2 xxw +7wdvm.t-. /pa- zuk9fp yezai8monochromatic 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 separh6t i.-l 0fjdsates white light into different color6dsh-0f j il.ts 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 kjj i.yi05tstf17 (aia 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 dv7n )sf8n)b 2vv mao5 rr,)ewi-b8gw15hjie 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 slightly longer than 750 nz9gq9nh fa(- d. mp6fwbgt.;z m 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 refraction when passing from air j7 s r+:uwwyu7to gr s7jw +:wu7yulass?

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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 fro(1u09 bj1rabkl 2nyp sm air to glasku0pr ( syb na19l1b2js?

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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 k+, frsmoluxio( s;u1pg 16:von a thick glass plate with parallel sides, at koil uxpv:, (6 1ssr+ug o1m;fan angle between $0^{\circ}$ and $90^{\circ}$ with the normal. Which color emerges from the other side first?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person gazes at a very distant light sourtj uu xmx56*rhp*d0b*5cj(sy ce. If she now holds up two fingers, wit*bdtm* *5j56r x u ycj(xps0uhh a very small 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 experwxxdv7(;vj djig(: o/h -p +k wrli8nvfp2(9viment, if the width of the slit increases, what happens to the width of the central maximu2xi-wk7:+9jfp jnvohr( v v8gx/wip(l ;dvd (m 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 4uypw 94j:22jhx eab0 q000 lines per cm and the other one has 6000 lines per cm. Make a statement compa2hejp:2x w9u yb0a4 jqring 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 gratinznc7v-v.qi*/ ucy kmdg2u94ngs 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 light, make a statement conceug7y2 i9 zv.-qn m*4u/kv cdncrning 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 reflectq,+y-oe8bkhtm9chozgd*0y :i0vc ,b ion 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 interfery o 7;w2d(y fj zuwc10 umyxrts,+:zh*e constructively or destructively, depending on their phase ywsj:yr wfy7d2 0 1zmux*h z;co, t(+udifference. 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 lightkj law:lg9z;;b3 kf2c-verz* , which is traveling in glass, strikes an air boundary, therezg3* 9-kve:llc ;f;kzjr 2bwa 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 injw;se sbv. ve4.ae-ow u6a5 v8 air, is reflected by a glass surface, th.s8b6 e a;owjvuw.5aes vve -4ere 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. 9zj3g dftqir gkn4zu +s(zagk16d 1va,z93n5 As the film becomes very much thinner than the wavelength of blue lightn6tfgk35ui+z( azkq1sd 993 zg ,d4g rj zav1n, 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 ligh)*mt pnkt q-edvf3vuk le9.90 t in magnesium fluoride, what is the minimum thickness of magnesium fl-p v3m*v q9un ke9k.e)tfd0tluoride coating that must be applied to a glass lens to make it non-reflecting for that wavelength? (The index of refraction of magnesium fluoride is intermediate to that of glass and air.)

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens is placed on a flat glass plate and illuminated frowy2q4p g fzthg 5, tk4+5.rujek3mh)gm above with monochromatic red light. When viewed from above, concentric bands of red and dark are observed. What does one observe at th5hzgm.ug4r2+y,kfh pt4ew qkj ) 5t 3ge 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 wb2i yf96wov)sunglasses can reduce glare from reflected surfaces b)w6ovw9iy2f?

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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 defrepan0)9p8mv g kt81aet; xp)ined 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 polarizjdth -+tup 9z+ed light in a dichroic material like a Polaroid z jtd-u9p++thfilm?

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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 tqvd i6lo,/n:c wo Polaroid films are perpendicular to each other, what is the percentage of the incident light which wivin:o6 /dl,cqll 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 thl:87w q u pxig,m/s2mye 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 grean(iv ro7t(1 6ep gb7gwtest 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 exhibited? 6 zrbbsquv-0h3yl1p1

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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 (overv3 qo)u0ka vk;hw3o;rhead) than it does toward the horizon. This occurs becar o;k3h ka03; owqvvu)use

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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 f l7*vu n0-ckh(f5 j+1auc vnc8(tgczvacuum. It passes into glass, which has an index of refraction of 1.50. What is the wavelength of the light in fhva u (c-+c*gnn(u t05kc8zlv7c1j fthe 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 60 ou lh1e.qh;2y0 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the frequel 2he.;huo qy1ncy 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 :la.kz 5/d4wi nz ,luboeii5-bp.( lcin a vacuum. It passes into glass, which has an index of refractip eiu,oa4lb dwzl .l(: k5n5z/-.iibcon 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 is found to travna5;jww / *jrz,(wbwu4(deb wel 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 to travel 7p6: 6jkx9bnpxyhmrbb6 .m c 5v3c4zk 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 tostb81ebr9xmh q . 0y7j 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 l:q,rc ;073flxp4qst np7 iy*rbv d4:foti )ufight falls on these slits, and produces a fifth order interference fringe at apfio,) ciq; 4y0dfx n bt43l:t 7rs7vfup* q:rn 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 57xnv6(v3w2 ufb5 nm falls on a double-slit and the third order bright fringe is seen at an angle ou3b6(n xvf2 wvf $6.5^{\circ}$. 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 slid1ktk,1rzdhblmuuvf n *qh51u5z 29 9t experiment, if the separation between the two slits is hk b2 du1hlf5nvu*tqz99dr1k,um 15z0.050 mm and the 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 separation is 2.0 mm, and two f(:ona4 s 5lkx-uy-et 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 pattnleto( 4x- ay:k ufs-5ern 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 apv3;wd drwml -hon+/5a art. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m m d- dwr/on+aw; vhl35away, 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 light is incident on a Young's double slit setup;dk:d4 ougw0e 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 thg4 udw;oe k:d0e 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 nzfwq6wo*om 5:m 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 the angle between the two beams in the f5w6oqw*:o zm 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 n,)y 8pc9szl b lcz*3uzm) and red light (wavelength b 8cylpz)u9s l3,c*zz670 nm) is incident on a thick piece of glass at $80^{\circ}$. What is the angular separation between the refracted red and refracted blue beams while they are in the glass? (The respective indices of refraction for the blue light and the red light are 1.4636 and 1.4561.)

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  350 nm of light falls on a single slit of width 0.20 95ebmj ist.v 9mm. What is the angular width tbs599mvi.je 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 mdi;w0zvv:ck 6mi/u 6i m wide, is illuminated by light of 550 nm wavelength. What is the angular separation between the first two minima on either side d:mi 0iw u;/z6vck vi6of 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.a:e)gcwx88b p At what distance from the slit should a screen be placed if the se8cxaeg:b wp )8cond 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 anij;3m3xpmum u8*c jn)ynh3n7d the diffraction pattern is produced on a screen that is 1.5 m from the slit. What is the width of the central maxm *pci3m3x7jun;jn8ymhn) 3 u imum?

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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. h;* vq-)2fu rktc i4sej,1kdo An observing scre 2o svi fr cjth-,u41;e)d*qkken is placed 2.00 m from the slit. 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 slit of width 0.3 ud /-ggpv.+b9 m qckp35g8qdg00 mm. An observing screen is placed 2.00 m from the slit. Find the cgu9qk. +-vg8 d3d bg5/gpmqpwidth 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 pert+g qs(jf1dm;74zo v.+j0akv5rm mmq centimeter, its second order ms(1zrv+;+mjda.4vmqk 05mmqg fj ot7aximum 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 max0 cfc .)6zgs t*fyyxmqdr)zh2 fsa(35imum and the fourth fqm.ygysc(s5 taz h)zf2 x)* rc03df 6order 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 isyadps *i)-uk9aiy 65 d v.hxg3 incident on a grating that is 75 mm wide and ruled with 50,000 lines. The second-order maximidad 5i6 vgy-9.ph)*uasx y3kum 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 fir ph/x z36a8l5 sj-yws,b ):bmxdi f8rzst-order maximum 0.350 mm from the central maximum on a distant screen. A second monochromatic source produces a third-order maximum 0.870 mm from the central maximum when it passes through the same diffraction grating. What is the wavelength of the light from the byj3 mw /ai,z:8psl5z -6d bxh)f8srxsecond 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 centimetgf br0wk1d:uqen34)d xvo2 4t er ruled on it. What is the angular separation between the second and the third1ow 4gx d r30vqtk)u4n2f e:bd 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 sprea,:os q3dml5lm( kda*rd out into spectral hues by a grating. If the grating has 2000 lines per centimeter, at what angle will r* (:3l,md laqdkmro5sed 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 ys*f rip m/thj74y)7 ugrating. If the first-order maximum r) su i*7mft/j4h7yypoccurs at $20.5^{\circ}$, what is the grating constant (the distance between the slits)?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light of wavelen -e-sl k52f ofope)f-jgth 500 nm is incident normally on a grating. If the third-order maximum of t-j5fofp ke- 2-olefs)he 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 wavelengo+1f-bgqs9h xth 500 nm is incident normally on a grating. If the third-order maximum of the diffraction patt xg9sq -hb1o+fern 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 separau8 pmenayat2:ig ;-q 9+ti7*dtzep,w ted from another glass plate at one end by a strand of someo- 9:u y*pntiam t8wq e,ip+; tgze27adne'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 x i985lr*c kfe /bsefn5d+,bcof 1.33. What minimum thickness of this bubble will ensure maximum reflectance of normally incident 530 nm wavelengt /c,nr5if*besebc 95+xd8flk h 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 ikpv.l4v6+ acflluminates a soap film ( n = 1.33). What is the minimum thickness of film that will g4f.vk+cp v6laive 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 w*5ahl 6 c.ei.eo /wacnonreflecting film coating (n = 1.30) on a glass lens (n = 1.50) for waveleng5cc iw / 6.w.e*olhaaeth 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 unpob h 5i3t+trvrrzars.cdo(n-b, rn0ro /x5 :4hlarized light and the intensity of the transmitted light is 1. A n+cz4rtshr 3brv:r5 x oh/dnot(i,bar-5. 0rsecond 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 its preferred direction rot2d tf zhe7b:,1srd8zw7:gn vafa i i:1ated $30^{\circ}$ 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 piecej7rdw*j3 t iryk c*y-c xgo698 of glass at an angle of kj8ctr7 wgc9y o6*j-idx r3*y$57.3^{\circ}$. 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-analyzerd j f2j/fsi-+p1 f-iuy combination. The transmission axes of the polarizer and the analypff1i/ s -d+fjuj i-2yzer 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 8p;gsz ebyhv:fh4xiy:h9 41l Moon when its image reflected in calm water is completely pol xyf9plb4hz:v eghsi 18h ;y:4arized?

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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 and then angx,u- 9/bylnj analyzer. In this process, the intensity of the light transmitted is reduced to 10% of the intensitgxn,ul-jb/9y y 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'sxo5(s8pxa sr;rx i34-q(z zez6 t(rur angle for light traveling in vacuum and reflecting off a pexuxzot(r s;s3(iz r(5 ax- pr8r6z4 qiece of glass of index of refraction 1.48?

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