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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 principleafs9teww x(2n:z 6(rl.
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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 ,2(fkqyd+w *os,i r-ho lug p5statement?

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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 t+- qbuox;yi1zq4m 9uk x;o2u wo

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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 i)g v+ .gdhljoszu+2x- s 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 ente sg9ob:g0qh:u y6a2zj rs 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 air, e)flxxt0c:;,a z9 vk otnters a piece oft):fxvc0;9 tozx,lka glass (index of refraction 1.50), its frequency

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light (wavelength = 590 nm), originally traveling in air, ei /3mt 8ka8zvfnters a piece of glass (index of refraction 1.50), its wavelen38kzafi 8v tm/gth

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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 spreading as(u*n l qlf mmv6m:c)cv6 7ff-y it passes through a narrow slc667fv( l) mff*ucv -lmy: mqnit?

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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 ob;ix5qtk gq 7a06t vzs2jects such as buildings, whereas light is not noticeably diffractt2 qiv6qx5sg0k7; tz aed. 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 4obkm t6 t ; g89qq)u1hi gmb1ysl7;mdbands when light passes through two or more narrow slb1ut41oym kg qhsmqdmb lg;6;)i87 t9its?

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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 coherent if tc kr+auk4fnt:.5 xbnp/ go32vhey

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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 sl :)yd3uc0bxdxjbp :, triking a screen are in phase wiu cx3l0,bd) :pjy:db xth 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 lil,goe3e t(n avy q+p08ght travel different paths arriving at point P. If the maximum constructive interferaee8tgn o yq( v0,l3+pence 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 different paths arriving at v.fi fy92tf1rpoint P. If the maximum destrtffi9rv.1 f 2yuctive 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 sidenvt+ p(0rro;8-z yf3dkrt(e l of the central bright spot in a double-slit experiment, lig-dn8tytzpe l(r0 ; o+(vrfr 3kht 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 dohf+j-o4 r w,k/ry:lt auble-slit experiment, light from eacw+tkf -jyl/rr, oah4 :h 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 in a doubh ,2;ozft4jik:mo/88 i ydtcf/ipk .gle-slit jft/yhm,p8 / odz4;.itickkgo8 2i: fexperiment, 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 experime5v+ +aoqwn xju/wj*k 6nt, if the separation between the slits decreases, what happens to the distance between w6 a qx/*jw +kvojun+5the 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 obsernex :2vscbux*k5iy -+z1. umyved 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 in halnsy+ 5-uy vk1*xe:2c.b zimuxf?

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One beam of coherent41h1nb r4 aj8u vrq0wwctcl71 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 j ,+0lzjsea;b1rj /jxof a Young's double slit experiment arrives at a point on the screen on,x;l1 z +r/ j0jajsejbe-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 in1vnx h0eti hlm-w; (p(terference fringes in a double-slit experiment if the separation of the x(tevlm1;hh-w n p(i0slits 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 ap zy5akpsx)6p0ka x(+ double-slit interference pattern using monochromatic l)pyks6 (apkxp5z+xa0ight 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 o + 5e.vdqgxcp2fjh/ 7why a prism separates white light into different colors icgp7 vh +f2d5oxjq. /es

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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 ra xl :kxt.k3,tyynmap( n()0 roinbow 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 short sc0a n ppm7,:+ gpe1gi mzt1g,nwkq-5er 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 slightly longer than 750 nm is s5qmi4 8uf-*g3qfhfdj9d4 kp f2h ysuk(g1y2called

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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 fa1qqc wu;9- czrom air to glassc9wq1quc -az; ?

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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 smallesf, 6 3 tw 33-qge+iig7fftwocpt refraction when passing from air to gla3oi3fgc 3wwte,ffq g+ - ip67tss?

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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 auy)j((mkw h()ppmj7nas vcy++ 5d6qa thick glass plate with parallel sides, at an anglepjmaa(7 ( +kcd+wq jsy)y5nhv)(mp6u 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 g 4lplc38f +qw6ho*q+ai/k o wup two fingers, with a very small gap between them, and looks at l3k* p cgafli4+wq o6/q+hwo8the 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 ex;wt,vi k x20mhdz9gwz*;emq -periment, if the width of the slit increases, what happens to the width of the centrem mkh ;i9z q*xg2v,;tz -0dwwal 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 otherz.u2jv9*4gn 5 ppi gegk awt.zcry2+ ( one has 6000 lines per cm. Make a statement compari4zu gg.29+yk2jpir . tpgcnewv5(z*ang 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 sam8rm 8wgv)cgr()p+d mce 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 concerning the separation betm(r g)rw8vc)8g +mdpcween 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 bfqpwn9 f6 (-bby 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 mo.-p y v7ib-nd-ab jr2rnochromatic light waves can interfere constructively or destructively, depending on their phase difference. One consequence of this phenomen -2ayv--bi 7jdp br.rnon 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, dwe-a f4)((uxuo lyf4b- ui, xstrikes an air boundary, there iwu,4--fl d ()ux4y f beuxoai(s

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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 refl0r h;8 /lmd ;3fyubk,jq/fxcjq6cq-h ected by a glass surface, thhfylfuj- q6xh 3 ;cq/m,/jdb8kr0qc; ere 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 lu3:b dfy i g310s;r nsnus69ng4pjjt;(ahn d6ight. As the film becomes very much thinner than the wavelength of blue4dy: ut(p h0s6 j1sgd9sn njnbrg63na 3f;iu; 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 bmnn(*xx i-5jiht3 v8 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 wavelength? (The index of refraction of magnesiu* (hnxv-3j8inib m5xt m 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 5v 2 nr3. jljduoq*s(vplate and illuminated from above with monochromatic js2*n vrqu5l j3. (vdored 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 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 9 tkpqky:u8;kthat certain sunglasses can reduce glare from reflectek u9ytk k;8:qpd 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 polarization isbir2a g( c6u s+gp)az4 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 obtai-5 tyurv vv/e7l 3fw5 y*;agwnn polarized light in a dichroic material like a Polaroil/ a 7yrgv5-w35v ;uvn*f ywetd 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 perpendfrryd3;, .-snclifv tem 8/h/icular to each other, what is the percentage of the i yienc m3dvfhrfl8ts ,/;-r/. ncident 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 surfacef51bbpsk /sk: 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 greate3xx+w3vse*xly cod;4 st 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 followinp0v; kx)/o0 )rgot fzpg is diffraction 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 sky appears to be more blp+ wovx zfnx2,,wuj3 3 *a15b uflug1pue toward the zenith (overhead) than it doupfgj5 a+zuxox133nup1fv bl2*,, ww es 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 injrls9)ll w c;, a vacuum. It passes into glass, which has an index of refra,l;l9crwsl) jction of 1.50. 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 vacuuykkb2y72wwngkxks k. a a758*m. It passes into glass, which has an index of refraction of 1.50. What is t2w .gx *y5b2ay7aknk8s w7kkkhe 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 inn.25 gsh xa.o x idb26je)syj4 a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the speed oh.gnxjasj542)eb6y d s x2 i.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 vacskpr212h5sx 9(nnu4s x vxa)ruum is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the index of refraction of the liquid.

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in air is foun rdk0uayk o pf )).gmsh3 9uq*u9tyugo,+ 4mn,d to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the frequency of the light in the liquid.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in air is found 7equtn+gtxa v 9nu/jaf71o1 -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 sl xy,i9l5 u66wbzvt 1p8,ldob oaw(dg0its, and9 o,56wx0 zlav8btu ow i (1yp6d,gdbl produces 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 8c+zk ug*+igd the third order bright fringe is seek ud++c*8i ggzn at an angle of $6.5^{\circ}$. What is the separation between the double slits?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a Young's double slit experiment, if the separation between the twou9kez 1txto(gjqo . 2: slits is 0.050 mm and the distance from the slits to a screen : .tq( oz9uogx2tjk1e 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 m1jxmwk,nh-b(nc7 j dr7 kd9r;m, and two 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 fringe frb-kj,7x1n9jrhrw; m knc7d (d om 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 wavelengt aybf;p7*xl s7h 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent *f7sy;xl bp7 ainterference 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 sl xiy0h 54uxatykjj7))ot /iw *e s,:ayit 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-)j)7y,kjtxi*ae0yyh at: s i5 /4ux oworder 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 wa) z1((6rlss mjw8op two wavelengths, 480 nm and 700 nm, strikes a plain piece of glass at an angle of incidence or(aj sl w(p8zo 61)mswf 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 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 bl :qhpx2o jt(vfgv,7 v3ue light (wavelength 480 nm) and red light (wavelength 670 nm) is incident onvtgpf,ov :q 2hx73v (j 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 as+h vsu qdqpn 2v;0,w8m 88hkh single slit of width 0.20 mm. What is the angular width of the central dh88;n0s vm8uh shqw2v+ kpdq,iffraction 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 lightka fmawelx;z,71 x 7,s of 550 nm wavelength. What is the angez ;l1x7smfwaa k, ,x7ular separation between the first two minima on either side of the central maximum?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 687 nm is incident on a single slit 0.75 mm wide. Abx u74n( 3i6b9urr0/i xdhwoat what distance from the slit should a srxa4bxundw( 6ib ui7/9ho 0r3creen 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 zgj um(z8pd58610 nm is incident on a slit 0.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m fg mzjpz5d(u88 rom 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 i 3(x:w mzhrlj+ncident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the position of the first order dark fringe from the:wl (zj rh3mx+ 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 widpbv rkzh 9j;)5g o p.n k3a)(ewk7z;ajth 0.300 mm. An observing screen is placed 2.00a3baojrvknph )7;);z 9(k 5w z.egpkj m from the slit. Find the width of the central maximum.

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When light illuminates a grating with 7000 lines per centimeter, 4 *3uavfk dz c g9cq;z6:+gdudits second ordea:f3c duk49v*6 uqd+d c;gzzgr 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 between theq j w2v-mvkg8qp4bu7: central maximum and b4w q7-2 :j kvupvmg8qthe 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 withmq5wiott;c, * sah*xl.p ;uxu u+uf61 50,000 lines. The second-order maximum is seen u;p1 acm ;lxfwi+x5t h,q *u o6.u*ustat $32.5^{\circ}$. 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+m3pjofavu9xf2q, j; , light of 600 nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen. A second monochromatic source produces a third-order maximum 0.870 mm from the central maximum when it passes through the same diffraction grating. What is the wavelengthq2ufj m ,jp; fx3+aov9 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 lines per centimeter ruled on it. Whal7 qni26 n* nxl3tg0vst 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 in62 n70xlt ns vlg3q*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 gratingekzjo , (yl72p. If the grating has 2000 lines per centimeter, at what ango2z (j7 epk,ylle 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 nj9x z y.,p-h5c r0lozcalibrate a grating. If the first-order maximum occurs at 0ojcz,zxn9.r- ly5ph$20.5^{\circ}$, 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 inci p3 sue2jgal-v39np76v qx3z rdent normally on a grating. If t3q 2v6n 973e3x -jupasrpl zgvhe third-order maximum of the diffraction pattern is observed at $32.0^{\circ}$, what is the grating constant (distance between the slits)?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light 3. ftv-d8 fqlsof wavelength 500 nm is incident normally on a grating. If the third-order maximum of s.f-tf qv3l d8the 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 eh o0hyn34:viwlxr88u9 ks:io nd by a strand of some o4h 8woxyrk 90sui8nh:lvi3:one's hair (diameter 0.010 mm). How far apart are the adjacent interference bands when viewed with light of wavelength 600 nm?

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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A soap bubble has an index of refraction of 1.33. What minimum thick .-lbe f36lac .cc 3yebl)rm7vness of this bubble will ensure maximum reflectancblflmr l a e- 3yccc.6e)7.3vbe 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 itd7vyfw8n 4xkn 4 a+j4s the minimum thickness of film that y fdkw 4+4ax8t7 nnv4jwill 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 i .x(c(iekui,:lsl .ta nonreflecting film coating (n = 1.30) on a glass lens (n = 1.50llu .s:et(,(iix i.k c) for wavelength 500 nm?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal polarizer isp*v b (boouvsm++u(n*n q9.xj placed in a beam of unpolarized light and the intensity ofb9mvnqx+(jbp * . vuun(+soo* the transmitted light is 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 its preferred direct nsv l2toxp;vwwpml0j/fma, 89/ upx 67n4r-bion 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 glass at an angle of lq8mw 6 o23s)nn6i)ve -ftau i32n)t6 6 wnfei -lm8ouqsvi )a$57.3^{\circ}$. 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 -u 6wzke y/.ltn,y+zcg6-itoh sz4( dpassed through a polarizer-analyzer combination. The transmission axes of the polarizer and t 4n wkud6-ly-,tizzso+ht.6(g /zyeche analyzer are at $30.0^{\circ}$ to each other. What percentage of the unpolarized light gets through the combination?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How far above the horizon is the Moon when its image reflected in calm water is r -3 u:0wrag8og m0l;-cnqvre comqr a0w vg8uncr rol-:g ;0-me3pletely polarized?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of light passes through a polarxn+lset :i3 1oizer and then an analyzer. In this process, the intensity oitx3e1 o+:n slf 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 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 ;8-yw;uctk.ws)i r vereflecting off a piece of glass of indeuk w-; tv)c;e8.sir wyx of refraction 1.48?

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