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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 princj x t3dj6 uf3uv;6n*u +*h ne/uvccfy6iple.
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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 aa:km(09dsavcy(d: zt false 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 attributed tgobsn/c3 v (m4o

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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 attributed tb. 7ztxk qob.1o

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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 optical deno q3nq1jb.e-nwm4+ ensity,

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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),s i e( 7g- xgg08f:rho,kwpj7q originally traveling in air, enters a pp(gj8- iwg 7f hq:x0ego7,krsiece of 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 trave9 6qjtm s5whks+6d ck+ling in air, enters a piec6skh +5kqm 9sw+6cjtd e of glass (index 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 spreading as it passes t; a0vdh/ey j9rhrough a narrow sla;/hrj9y 0e vdit?

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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 ;-bjp o*qyh4k large objects such as buildings, whereas light is not n - ykbop;q*jh4oticeably 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 light pm5l 2ia jt-q ue(t+o.cassesl +j(ou2q tme-t i.ca5 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 ar21i( g blu3tpke 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 gu*n5v8 jgmq10heab6r nw3 qw2;h0 cr two light rays striking a screen are in phase w 50 qgc0w3 hwh; qmare2618gbvj *nurnith 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 differentw/ei*b zlk4 8e paths arriving at point P. If the maximum constructive interference is to occur at point P, the two beams m 4l/i8z* ekbweust

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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 lighng* o* oasf60,cdx 3fkt travel different paths arriving at point P. If the maximum destructive interference is to occur at point Pcfs a*d0x*o, fgo6n 3k, 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 sidvgea+mh. o :p)+ kslz6e of the central bright spot in a double-slit experiment, light from eachseol :hma v+6p.+ gk)z 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-slivpe9g15ut1nxo,* q n5+ni inwt experiment,v5,xi+1p ne 1 qo*9wnn5ig unt 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 in a doui r-ws5of t/h9w5o4ar ble-slit experiment, lh5- w ir 5a4roo/t9fswight 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 experefxna(o7n u::nxfc.. iment, if the separation between the slits decreases, what happens to the distance between the interference fri:nn.f. 7(e xc:ofuaxnnges?

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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 igc6 cq ce+ul.m( *,pj/trgc qip q11/ms observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima wheg+uqejp tm*p/6/ cil(q. c,cg1mc1 rqn 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 tr7hmy5u;f3ii g avels 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 5- y4r*q5q: vib7eyax+qajmiof a Young's double slit experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, which is observed at that poin5yqm-a x+qi:7 ivyaqjer 5*b4t?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Why would it be impossible to obtain interference yil;,l /dchg6 fringes in a double-slit experiment if the separatihd i,l 6;clyg/on 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 interference pat i;e-k(fazh9itern using monochromatic ; ez-if9ha i(klight is

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which explains why a prism separates white light into diff;wnto;mp) so4)tvj d7erent colors i wtop;o; vs4dt)m7 jn)s

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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 to8 e:ak;)*nc rcfvmy* eqc*2so 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 called: vr6wuu0kejsp7e1p* 2otqt9

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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 longelc)(p.e k8cqd r 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 greatest refraction when passing froc)v-x +auar 5em air to glas-ua)vcra e+x5 s?

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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 passd : pa1thhtscw;1gdj 6d(rg:ey+8 fc6ing from air to 1j: 6d8h cect+gd1ayt(gd:wr p h6sf;glass?

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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 plbj es(9in-clo1eq ee5f +-z4 date with parallel sides, at an angle between 9beofeed(j4z- ic-+le q5 1ns $0^{\circ}$ 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 x4ow(i y)m0b+;jomsu v b* u0flight source. If she now holds up two fingers, with a very small gap between them, and looks at the light source j*o0( yfm)uo0bmb;wusv4+ xi, 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 excl+q ccl(nk 0(oy wa40y(n tlsf n;7(jperiment, if the width of the slit increases, what happens to the widtlf ctykn+0n((os(cj0a( lcl;yw4nq7 h of the central maximum on a screen?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two diffraction gratings; one has 6 tmqi0 6a0zgh4000 lines per cm and the other one has 6000 lines per cm. Make a statement comparing the dispersion of th6m0za6i0gq 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 sli-x i7x+j3ddb(qiv4wyyy f5b*gyy 4:d t 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 monochro qy4b5:+y7yiyx d4bd(3gf xj- y *wdivmatic light, make a statement 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 caused ;5wx+ob w eaxrb+b/i7by reflection and

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  We have seen that two monochromatic light waves can interfere ul),qsq2ybw ay8 w2qe ir8ndhcy0v09.88t vv constructively or destructively, depending on their phase difference. One consequence of t8lv2 0) 0v8 cu2dsn,y 9 y areq.yq8iqwthw8vbhis 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 borxpk *4-3d hqu)ohw7wundary, there isw4x*wqd 7uhr-3po )hk

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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 glass su ioxe0+ qurc g3mybwrq+8a;(7 rface, (ew+a 0ry+iq7u b ;r3gcxmo q8there 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. As the film becomes very much thi him1 168oq-bao(fc q4hfxs,onner thanaf 8b,14(om61x hq-oc oshfqi 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 iy hjwk2 bc v;o70zct,7s the minimum thickness of magnesium fluoride coating that must be applied to a glass lens to make it non-r,hb vc 7c7yko 0;zt2wjeflecting 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 il+1( ysuf mn8kqu n,7egluminated from above with monochromatic red light. When viewed from above, concentric bands of red and dark are observed. What does one observe at the exact center of the lens where the lens angeum s,k 1+ nf7(u8qnyd 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 respons11gtyw 4 k p-7kps7purible for the fact that certain sunglasses can reduce glare u4p -y1 tp7wk7 r1skgpfrom 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 directj+g p2n wjyf67ion of polarization 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 a78k/jx02acppid /ujo dichroic material like a Polar0pod/ k ucjp2x7a 8j/ioid 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 perpendicular tosybo/5p5b)dp*kf 2 aw each other, what is the percentage of the incko ) p55ba*b/2pwdsy fident 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 f we4 gr3xlj242*qk-0xavap esrom 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 iy 99hea/ f;vjos 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 NOtpge*ck 0236e-l23us q ww ql3+ juqekT 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 appeqow6am :x a1(zywk6; a1rrq)p ars to be more blue toward the zenith (overhead) than it doo(6a6 qxam;1 rrazkpww1y :q)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 o ieudrl,6fc8,y-: m,kde-p abf 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the waveiey,e bkdr--dplc:6,m ua 8, flength of the light in the glass?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light has wavelength 600 nm in a vacuum. It passes into glass, 1ldcplcg8-+5gw5u0)2x8u tx h qkkrawhich has an index of refraction of 1.50. What is tc8g8r uc -kqx)t1h 25w5+x d0alkulg phe 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 6myl3q:8j mtz600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. Wy :qj8 3tmz6mlhat 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 toz ;jk1n8 bx/8co gg86.utfxin vacuum is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the index of refraction of the liquid.

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in air is)ffw4 mjnqnsn/ 44 e 79gr7mxf* hnx;a 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 550tjn cs sxty75v.(:mo rqf7.r1 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. n,/ehlwyi4 k ngx f,+1Monochromatic light falls on these slits, and producinwh1,g/ne fkly4+ x, es 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 andw s m ye zauss:ff(o++*7rs-n6 the third order bright fringe is seen at an angl u:f( +swy m-7e soszsa6r*fn+e 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 separato p8rd)b (991gz2 lyrk yan/efion between the two slits is 0.050 mm and the distance from the slits to a screen is 2.5 m, find the spacing between thoy/)rg2(n 9y p9a1zfbre l 8kde 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 experim34 fbpz*) gmgxent, the slit separation 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 distance from the central maximum on the screen will a bright fringe from one pab3fz4x)mg gp* ttern 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 lighjbrcwz9nt1y ( a .(fvey;x67mt of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are ade;(r(xym19 n c.y6 7vtwzbfajjacent 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 set7)52kx sraq(r s q+s :)mefugaup that has a slit separation of 30.0 mm. The resultan ess2)k+q rumar5 fx7)(aq g:st 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, 3m cpl7: xakkx1kkkx g0y// tun(e+0ustrikes a plain piece of glass(akkk/0npl7ux/ x1kymeg+3 0 k:c utx 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 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 nm) and red light (wavelsjekuu r+gu7p3( o/+s ength 670 nm) is incident on aje ur/sougs3(p++u7 k 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 oe3zh *(9q5e k)kod7 loy 1khwff width 0.20 mm. What is the angular width of the central d*3oykf klkq5 dzwe(oe 7h9h1)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 vi.4fvkqzf4: zt 4srk 6 p p.gr:6+rtpwide, is illuminated by light of 550 nm wavelength. What is the angular separation between the first two minima on either side of thtpf 4z +6p: q.kprir4 vk4zgr:stf.v6 e 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 nahas(-6 e xtl7m is incident on a single slit 0.75 mm wide. At what distance from the slit should a screen (eaat67xs h -lbe placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center of the screen?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 610 nm is incident on a slit 0nlumg a; 0mter8r y27;.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m from the sli a8n2m;g0rur y;e7tlmt. 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 o, bihx8pell lx3q 2*2s0yjft* n a slit of width 0.300 mm. An observing screen is placed 2.00l 2 pe2,xyi80hs3j*tbq* lxfl 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 n bihiqwsb2 32 2o1x0pom is incident on a slit of width 0.300 mm. An observinx 13pq sbhio2o2iwb 02g screen is placed 2.00 m from the slit. Find the width of the central maximum.

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When light illuminates a grating with 7000 l*d.)usjtkr;cb gwo4 g u3 5vy.ines per centimeter, its second order maximum isgwvdj .3b4.yg5uct )uk ;o*rs 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 an.y ;ww ekn97byqa7r)sgle between the central maximum and the fourth order9syyq ww n7;a k.)7erb 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 wiz kvmt1cmw5 5 4,hm3zm2gvp)l dz41fcde and ruled with 50,000 lines. Tzl5mg,tmv 1cd5pcmfv41)24zh 3 m zkwhe 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 nm wavelength produces a first-order dk +9qj 7i.j)wm2qedrmaximum 0.350 mm from the central maximum on a distant screen. A second monochromatic source produces a third-orderm d9+7dijk wj )eq.r2q 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 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. What j)irx0/ wenhyc .wydye/.b0)is the angular separati/ .h jdx riw.0yeby/wy)n0) ceon between the second and the third 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 spread out into spe0 v9udjrd7 n9p:6i g6 srk7qvmctral hues by a grating. If the grating has 2000 lines per centimeter, at what angle will red light (640 nm) appear in the first o:rpd 6r7 gmiusvq6k70dj 99vnrder?

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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 tf; )btdffo /,m 9b6baho calibrate a grating. If the first-order maximum occurs at dbf/9f)b;6 mt a ,ofbh$20.5^{\circ}$, 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 nm4(cm7 y/ zrrrx is incident normally on a grating. If the third-order maximum of the diffractionrr rz/4(ycx 7m 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 wavelength 500 nm is incident normally on a grating. I )jnx744a2hslmd(m z uf the third-order maximum of the diffrah(2 da4uz)j4s lm7nxmction 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 onei t5ia0 -6nhb;0bgln m end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent integhtbn0 ni;i0lb 5m-a 6rference 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 thickne k9i+o c0uww7gss of this bubble will ensure maximum reflectance of normally incident 530 nm wavelength lg9+u i co0kww7ight?

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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 ny;, /ehj ih7ypm illuminates a soap film ( n = 1.33). What is the minimum thickness of film that will give an /yiehj h7y,;p 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 film c0(:: v(st plmz yz3dx2tllyadif4,m( oating (n = 1.30) on a glass lenpl :(xtm ldm:iylyza0f3, dvz2(4(sts (n = 1.50) 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 is placed in a beam of unpolarized light av yl y+(-y95 mkppla(znd the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with its refy-( y5l(yplkz+ a9mvp erred 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 dico zu;6mcu5 c9c2dsh*rection 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 ofn1.q lekbk9xoci ; ojn+b.-s0o8q. nd glass at an angle of b+jld1 e9q .ni b8 nkn o0x;o.qco.k-s$57.3^{\circ}$. 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 pass ux8/o:; ixaurw4 (khskxcz4 -ed through a polarizer-analyzer combination. The transmission axes of the polarizos-x4 ;:ia(8/rkuzwxhx uc4k er 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 the Moon when itsajk-1j.55n arw qdlb+ image reflected in calm water is completelyaw5dn51-qbk.laj+j r 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 r* 3p5 y,3gsrz)i;, jnyxgq ijthrough a polarizer and then an analyzer. In this process, the intensity of53;)yjqg* ,grjx3 ,np s yziir 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 trav9+3 xg9wacn bseling in vacuum and reflecting off a pxc +9s3gawn 9biece of glass of index of refraction 1.48?

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