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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. r(xqd*ex9ec .
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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 stq5bohgmn65x o79e7 imk-bvp/ atement?

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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 a 0h)arc+rmnmqzp 6 ho)o r/(8a;ymm d0ttributed to

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The particle theory of light is attk 8o tqglx7t(/ributed 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 memumq0) r 4so;kx3ch:8l 8kbzsdium 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), o82m;p: hig9nyi bo*nik jw t98riginally traveling in air, enters a piece of glass (index of refraction 1.50), t2i*9;k yinm9bno88 whgij:pits 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 in air, eng-uvdfa *d; n1ters a piece of glass (index of refractio-vd fd;*na1 ugn 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 responsipqon m:oot:;vh5 dx99t r x(+oble for light spreading as it passes through a narrow :r o5t99oq+p :dnt xmohv(o;xslit?

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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 object-: 5q1vhinq43ika vlt s such as buildings, whereas light is not noticeably diffrac5tl q -h1iavn:ik4 v3qted. 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 f ruu -c8)nsso3or alternating light and dark bands when light pas -snsco8 3u)ruses through two or more narrow slits?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two light sources are saij0k (uk9dbuh z1(q+cdlp 2y1pd 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 esd/.al.owb 55og3q tscreen are in phase with eacho.53. tobqsal/de5g w 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 ligq,qv)t xuwj9u5n,u wsn,f0n9p x0, mwht travel different paths arriving at point P. If the maximum constructive f n su 90t 5 u)qmnuvx,9xnp,,w,0wwjqinterference 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 light travel diem:c 2n*t9gitfx38kq fferent paths arriving at point P. If the maximum destructivef 3 t9kq it:e2ng*m8cx 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 bright spot in a dou6x18e6waq sru/ cle)v0h +uwa ble-slit experiment, lighaul1e+6/r u8q6v0 ewx) a wcsht 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 sddfj21 6 y 6gqs*-7ij;/kbu 2hkyjaidide of the central bright spot in a double-slit experiment, light from each opening arjfuj;7 hk-skg d*aj26b2yy qdi1i6/d rives

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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 hc wqxk1, -:ylspot in a double-slit experiment, l-kqxhw ,c1 l:yight 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 b9 dwuu* 2 nj 2v/x/vzlnun/9egetween the slits decreases, what happens to thelu//d9jnuz2 2v*n /9wvnxe ug 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 between adjaceiu,:d7h f40yyaevgqxc c4/w (nt mh4(ydaq7 /x0i,:cy cg u fvwe4axima on a 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 travels 8e kv 3,vps/k477wbygtn61 g,jwravapath $P_1$ 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 experim y ;41jsna.ht4qlc*-rm kii) )ozfn)fent arrives at a point onlnfa14m-zkf) hin) y*.4q;oisjc t)r the 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 obtain interf es,actwr(d.z, ealj0 7- .nhjerence fringes in a double-slit experiment if the separation of the slits is less than the wavelenj a(zlrn ee,0wd .,-hc7aj.t sgth 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-nhk8 z-n7 svr0slit interference pattern using monochromatic light 8vzns nr-kh70 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 e ,mzgvjhpr- wr6y-b94 xplains why a prism separates white light into different colors m-p r,6 vwg-yh94 brzjis

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which xdmt( 1yvt9l 2 /n1aa4 t,ltqsallows 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 c ucrj h*m wx:dd,5b93ralled

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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 n;z: z8hb8 wxbt-g+fgbm 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 ms jo:9ror( dz)8n 8crthe greatest refraction when passing from air to glass? s9ncr o 8jr8(rdzmo:)

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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 pa ml 1*+1lj)k.g;metn a pjb(igssing from air to gj tp*g i n1.ja1km+e( );gllmblass?

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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 pl5bm:gqb+s;n2pbf) h hate with parallel sides, ats mb;g2+p fqb :hhb)5n an 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 source. If she now holds up two fingersjfjq2f xqdts7ij o)( f+o-y.c ;bt- f/,oftq.fc-/ftbyx;jjs o7f-d+ )j( i2 q with 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 experiment, if thehglcu 2ac*)(b width of the slit increases, what happens to the width of the centh)c2agbc *u( lral 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 other oxw9qcm 2:nf i51 e f15dn9nlhdne has 6000 lines per cm. Make a 1qe nd5 wmcdnxn :i 5lff9291hstatement 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 b tn;n;l-3mnesame 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 st-lnte m ;n3bn;atement 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 causc,0)deoivc; olliaqn+ +ux ( )ed 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 inte4+spz g+wadp8+tzd zk 5- h-carfere constructively or destructiv+sd+ z-d-tpzgk 45pahwz 8ac+ely, 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, whi uuo2g2ibr9dlo 84 3+fv krl3fch is traveling in glass, strikes an air boundary, there iolu4 +gro b23uklf9dfiv38 r2s

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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 re l1 3tm/iv 42)xkix ao0fuy+wvflected by a glass surface, there i)i1oiyl/0 k2mv3avwfx u t+x4s

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A soap film is being viewed in white light. As the film becomes veg 8t: 6ud6r.nfcg8nw ((vi pvrry much thinner thn:6rgu v g i(vw8cf6pr(n.td 8an the wavelength of blue 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 wavelength of light in magnesium fluoride, what 4a(zuqus6o9mli :z t7 :bduy8is the minimum thickness of magnesium fluoride coating that must be applied to a glass lens to make it non-refle7a s8b94utm(luzodq6u z :y :icting 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 place:w *slkqrr; yl:j le,3d on a flat glass plate and illuminated from above with monochromatic red light. When viewed from above, concentric bands of red and 3:s w:ljrk*q e,yl ;rldark 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 sun3mdl7 90l j(qn ebe/jkglasses can reduce glare froblnq e3md/ jje( k0l97m reflected 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 pou6i q;ffj /0vularization 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 Po5p(/ ddak b+k7urh. nilak.(a57kp+rh / indudb roid 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 are per,cp sh ulk3 mk6(we03fpendicular to each other, what is the percentage of the incident light which will pa lm,sck36(efh30ku w pss 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) zdt-2ma.2 c)t vhrbs 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 g t9rpv*iqg ,,ireatest 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 diffra vhsj9,v3 i/laction NOT exhibited?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  On a clear day, the sj1jh(pm03 w flky appears to be more blue toward the zenith (overhead) than it does toward the horizon. This occu1jw(p 0l j3mhfrs 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 wavelengthq+uv q0;jb)itgj gr5ed u/;v7 of 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the wavelength of thutqq+jj;i/eur)d 5vb;g v7g0 e 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 passeszb8s dpc 0,vte;fv 69r into glass, which has an index of refraction of 1.50. What is sf098ebptdc rv;6 ,zvthe 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 -q nvv qf24t bcw8cq+)in a vacuum. It passes into glass, which has an index of refraction of 1.5f+qnqc tc)v4 wq8vb -20. 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 vacbj/ni b5 7+ vlnqe/s:9 kcbn,tuum 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 -qf1s+1lgo mt f.i;mrnm 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 550 nm in air:x.hc7e7ez hi 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 apar6e pty5e6k4)sb)bicrt. Monochromatic light falls on these slits, and produces a fifth order interb5y bpi4 66e)ctsk)reference 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 doubley rt6m,e. u3bp-slit and the third order bright fringe is seen at an angleyr6b3mtp. ,e u 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 separationhp +lehle6gr*t6 71 hl between the two slits is 0.050 mm and the distane1pe tr*l gl7lh+h66 hce 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 iswqtwmslrj67e -is x/1,cy6 2r 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 dirl 2 xjm-s6wiy71wst/6, erq cstance 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. Monoch 9e1 ;w2(ljgo 3sg dojzd7aalca5o.c9romatic light of wavelength 634 nm falls on tgd9gl 3e 2;o ac7so9 (ajadj5w1zc ol.he slits. If there 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 light is incident lk4yo tj swc4rq5n.18on a Young's double slit setup that has a slit separation of 30.0 mm. The resultant bright fringe seqc4sl rt5yno1.k4 wj8paration 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 contaiyr *a8n/2zhd nning two wavelengths, 480 nm and 700 nm, strikes a plain piece of glass at an angle of incidence of 60e. The index of refraction of the glass is 1.4830 at 480 nm and 1.4760 at 700 nm.zdra/yn*h n2 8 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 consistin 0oco6ho(5nub5u/d :y cp 1lzvg of blue light (wavelength 480 nm) and red light (wavelength 670 nm) ispdhvo/06 n bo1uyuc :l5z5oc ( 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 mm. What is the anglk bfsu: i 8 ku56ca3d. equ+sp15uqi8ular width of thc 63kquea5sui ds1 .pq8bl:fiu8u5+ke 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 illuminated by light of 550 nm -z ypt3l qskr vhd37(3wavelength. What is the angular separati3z (ty-3dkh3p7v lqrs on 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 b8 lr +vad.7syslit 0.75 mm wide. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be 1.7 mm 7+yvsab r.l8 dfrom 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 04,ah9 cvilf8f-r*tcq(f j*m3p n8 vyyfzca 5:.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m from the slit. t yrifvpmf3vh*qc ( c9cl a y4f*5-jfz: a8n8, 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. An observine:dx0/ dh)1 g5e mitydg screen is placed 2.00 m from the slit. Find tdmid0h/e: 1 yt d)xe5ghe 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. An obs fjbkfz3jd)at 4(ogg- /4 g7nlerving screen is placed 2.00 m from the slit. Find the width of the central maxi7j/ (z3bfoldj44gkfag-gt n)mum.

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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 1,(h l/ 7y6as ckv6htjyw7c fxsecond order w f7jtc716ysacv6yh(lh ,x/k maximum 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 be0k7j8:j hr ,a7nw sbrmtween the central maximn7rbs8w:j kra0 ,7hjm um 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 that is 75 mm wide and ruled wi-aaw p*7 /tvolth 50,000v7 /-lpaot *wa lines. The second-order maximum 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 :jh1iq :eg.6oahvh x8nm 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 of the light from the second sgq i :jh.aeh8h:vxo16 ource?

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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 limkdgx,a w3ys;s(n;idjs ( uk 5vn /9x-nes 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 grating is illuminated with a beam of liimk5g;d /,u(;n x vsssxk (j-n3yaw9dght 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 grativcs;k7 zj1b9e ng. If the grating has 2000 lin 7e 9zk;v1jcsbes per centimeter, at what angle will red light (640 nm) appear in the first order?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A He-Ne laser (632.8 nm) is used to calibrate a grating. If the first-ord xzil.(jh/3xc3j zlo4 er maximum occurs atz 3 4z.olilhc(/jx x3j $20.5^{\circ}$, 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 incide;t);sgr0j3mjufppyaf -(0jc nt normally on a grating. If the third-order maximum of the diffraction pattern is obrjp-;jsu)0y0;p3g(ca ftj fmserved at $32.0^{\circ}$, what is the grating constant (distance between the slits)?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light of wavelength 500 nm is incident normally onyb,zqmjbaa 8 -5e+g3 e a grating. If the third-order maximum of th ja5mgz3bey+,be-8 a qe 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;ggsp--r;ca o sw98an(k 9tsj long is separated from another glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent interference bands when jkt (; g9ps-8scawso-r;n 9g aviewed 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 anxs(iyr4z xxj) kuj5*z0a)(eq index of refraction of 1.33. What minimum thickness of this bubble 5 jzxur 0)4ziq((* eaj)xkyxs will 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). What is3 h: lw5aman,l the minimnalh:,l3 ma5 wum thickness 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 o8y2for h4lx3 tf a nonreflecting film coating (n = 1.30) on a glass lens (n = 1.50) for wavelengtlo83y4r hft x2h 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 unpolarizcc7,q e6h9/goez rt2nebu 2n/ed light and the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with its referred direction rotace2cq9et2h 7eu/nrog 6 b/,znted $40^{\circ}$ 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 preferrr8a jt0*f1e9ngq y1sjs1 q cvc9: xk0ved 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 (yft3 aqm vlds5m2vbl dfr5 9i1ws913in air strikes a flat piece of glass at an angle of 5s3 dvqi9b2twrlsv ( 5mma9 y3dflf11 $57.3^{\circ}$. 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-anaeman: ug*;p-u 4dyj :n d9f7snlyzer combination. The transmission axes of the polarizer and thmn*y 9:udpd: n aes4n-j7gu f;e 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 reflec /t+wrzhzz9cg i p knk3jpvk-i9 ;p7;9ted in calm water is completely pol 9z-ppgk+ktvkw 9zh 9j ;3icrnz7i;p/arized?

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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 l dvv, oa3k -imtf9tbx485.k dv5f3z bthen an analyzer. In this process, the intensity of the light transmitted is reduced to 10% of the intensity incident on the analyzer. Wha,v35ka84d5itkbfz-bt lf.xm 3 v 9dv ot 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 ref:ep; cx/vxeh 7lecting off a piece of glass of index of refev/hp x;xe7 c:raction 1.48?

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