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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.* 6hbgsew0 pprkb0 -z9
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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 avi 3d0rk31jf a 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 attr ;xvo5:qftu udc5mw +3ibuted 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 attri hgq8/ce,, n 1 /exuhnw9;ioaqbuted to

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a light wave enters into a medium of msi r z2amhl;q9s, 18udifferent 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 . py+bzjjy5r *ewy/cokt1uj.8d(r y: = 590 nm), originally traveling in air, enters a piece of glass (index of refraction 1.50), its fc .yp/wujo1dtbr.k(j 5y*r8yzj:+e yrequency

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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 nmd 99a)2+az:u8itf e xeofowts d/)v -i), originally traveling in air, enters a piece of glass (index of red8iue:aiso/ x2z f+9tav- wfoe) t9d)fraction 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 paopwz 0vpy5fg3n00 q k7sses through a narrow sy 00k7zpog v3wp0nfq5lit?

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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 buil ta n2b0i8tc.pwq5 2ksj1-w okdings, whereas light is not noticeably diffracted. Whyqt0anb8wk c ow5 21ik.t2p-s j 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 altern cl-ef49 ,xj2o l*lr-3pqz-xzj,lgj nating light and dark bands when light passes through two orjol *l-jz,e2 j q-zlc pxg93lfx 4-n,r 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 said to be bdjbkjthuu+,,bjd7lt .( v65 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 thatvlk:j6*pt.w e. 0cr bc two light rays striking a screen are in phase with each otrvlk cbje .p6.wtc*: 0her?

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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 lighta +fha. /-zrd gcz07d/xh7zkd travel different paths arriving at point P. If the maximum constructive interference is to occur at point /f dah0 h -.c/7+ zxdgza7zkdrP, 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 differenttn5-j(ae mk)f paths arriving at point P. If the maximum destructive interference is to ockn(t-mfja e)5 cur 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 6 1f*zss1nsw obu; y4bof the central bright spot in a double-slit experiment, light froosswznbsf ;bu161y 4*m 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 brix,(qgyf a ,51 jrz ii(*qbhqw *)qcm1cght spot in a double-slit expgrc,j,z(xwchq5i q fqi*y1 a* bq1m )(eriment, 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 oq fy/7,cir5hc n either side of the central bright spot in a double-slit experiment, light fr,75/ry cqi fhcom

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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 r 5f9 2rqdxwmv f+c+z n7:lg9uexperiment, if the separation between the slits decreases, what happens to the d+:fgn9vfz7+ w95u cl2 rqxmrdistance 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 ocszq05w lbr8l ky7pgp8o 13( is observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent c( 1sbz78q583powo 0lklrgy p 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 pab3z fwln4 qk+j1:(whx th $P_1$ 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 yh ,vi/z9zud: syc)r+of 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 observe,yczs)z vyi/:rh+du 9 d 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 in1:m+p l4zv)vnql gso: s,hfv; uhb5-sterference fringes in a double-slit experiment if the separation of t :lpvu: fg4bs)s1;z nhhlsm-v+ ,oq5v he 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 patteas(p-hmyy.+x w41toj rn using monochromatic liyj.-mx( h wt4p 1ayso+ght 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 intoc:f*3o s( ivlw different coil3cv: *f (woslors is

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which allows a rainbow to fo)pdmq580xd(tek 1 pnerm 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 40jv.wa:-uz c f,sp:4vs0 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 3 9ath:wz ng*elonger 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 pai.bwgo63cq z ,rdze9- ssing from air to -6owz gicq3. ,de9rzbglass?

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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 undergon y//8ij yxp/e fi-br6es the smallest refraction when passing from air to b6- /ii/ /enyfx8pyjrglass?

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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 ligh9fozjn):l* myt is incident on a thick glass plate with parallel sides, at alm n* zo)9yj:fn 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 twpzc(, pt1 z4gn*ge.ygyg ..pto fingers, with a very small gaz1ygg.t ny,.pc* .pzgpe4 gt(p 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 diffwq-;o nj,gg*czi6m f:raction experiment, if the width of the slit increases, what happens to the width of the centrz:,- 6 oj*fmiggn qc;wal 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 rc )r x,p-o a7a0 yf sa2i)+x7qxr(mbythe other one has 6000 lines per cm. Make a statement comparing the dispersion of the two gratinr,qxo7 r7)-+)sxaa iya yc(x2pr fmb0gs.

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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 sl0cod fqy*m f5*vv2bm( it separation, the only difference being that one grating has 3 slits and the other 4 slits. If both gratings are mf( vf* 0y5omd qv2*bcilluminated with a beam of the same monochromatic 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 by ref*3, pjt2-kzsrybyspoc8 +3c blection 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 monochromx7 bpkc/3 ggo*atic light waves can interfere constructively or destructively, depending on their phase 3/ po bkg*7gcxdifference. One consequence of this phenomenon is

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light, which is traveling in glass, strikes an air boundx2y9e1( w,5 hipczqcg ary, there i( ,ey z9hiwq cgpcx521s

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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 in16h lk yfi2mkn* q(i4d air, is reflected by a glass surface, ty6m2(ki1lh *qkni fd4here 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 ) gb18 ;pd*0oe jnhlfvfilm becomes very much thinner than the wavelength of blue liglpo8n 0d*b)fe h1vj g;ht, 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 iwryxj y-lr ;msq2ad2 9p2.oh;n 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 t lmy. -;2 ajrdryph2osx2 ;9qwhat 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 placd8nzh;dxfp;jr s77-ts3y j 1yed on a flat glass plate and illuminated 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 and the glass plate are in direct co3rzdy7f;x8sj jp;t1sdn-y 7 hntact?

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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 thp+cnjo d--yoos )/7oce fact that certain sunglasses can reduce glare fro odcyc-7j/+os) -ono pm 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 dire;uj;)ytmp(kqi ke91tction 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 l);qy-uw ijodmsh7; ,j 9-u ykright in a dichroic material like a Polaroid ,m s;juyjkri;ydhq9 o) --wu7 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 fil5;j uz(k urb7ums are perpendicular to each other, what is the percentage of the incident light which will pass the two films? b5jr ku7u;uz(

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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 s o nqfslop/:uiq9*6 e8urface 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 grb 45 wgj6d:z- xmjbfyf5j7qn7y( nlw3eatest 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 followini*o cqr-27u2 lagd.h myvi* g8g 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 blue toward the zenithgan wlj2b10z k.8uhil*d6e w: (overhead) than it does toward the horizon. Thlgha:d k82b*1wl i 60u.nej zwis 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 of7 4qzans2eb hg0/ p)vv 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the wav7szqn bp)g0a/2vveh4 elength 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 pas) gn0no+seu2l5 xx,uez f0y ;cses into glass, which has an index of refraction of 1.50. What is the frequency of the light inside 2lzeuyfcnex ;0n+g5os,u) 0x 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 in a k+ l:ch 6rzeq)vacuum. It passes into glass, which has an index of refraction of 1.50. Whc)z+lqhr 6k:eat 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 vacuumo+x ;cgca8hk* cm(q5 u(-r vd;5pamtov- at5 i 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 6u2s(c9cbn) qb u4rvk nm in air is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the frequency of the light in the liquid.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in air g0w6 ydn6j0) wep)euj qd*jc d/(u n-iis found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the wavelength of the light in the liquid.

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin slits are 6.00 mm apart. Monochromatic lig6,b15,g ee3yiu8driyg mz1j o ht falls on these slits, and produces a fifth or8ezy gg6om b 1dje iy1ui,3,5rder 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 tv.mn2(7 s, km+ iyvdglhe third order bright fringe ivm ks,ilv7(+2gn d ym.s seen 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 betwejp1d2 js/sd b.en the two slits is 0.050 mm and the distance from the slits to a screen is 2.5 m, find the spacing between the first-orj2ps1s/ dd.j bder 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 separatin .l6*/y,ujg zal-uhlon is 2.0 mm, and two wavelengths, 750 *.al uuly nj-/g 6,zhlnm 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 from the other?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin slits are 0.050 mm apart. Monochromatic light of wavelen-e2ssfq ;7lbm j gi;8v3jw ;zagth 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent interf38z gs 2js;7bi fvwq a-mlje;;erence 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 on7zur t2qg fuzk;l4fw;2myv(5 a Young's double slit setup that has a slit separation of 30.0 mm. Themltr(f;7;q gk42uf u2w5y zz v 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-order bright fringe and the zeroth-order bright fringe?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel light beam containing two wavelengths, 480 nm and 700 nm, s,87 6g+ckun)ilsnr w strikes a plain piece of glass at an angle of incidence ofunw +s8rig,ncl 6s)7k 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 7e8b a,2utuflue light (wavelength 480 nm) and red light (wavelength 67ef8ub2 lu, at70 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 mm. What is the ang ;nbvwfmoxa2rmrs4c/9;;njp e 6*a k3ular width of the central diff;v* keab9xomsn2r ;p4mw6a;f n/rjc3raction 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 ml(n rtk sg;p uf2qu,.-m wide, is illuminated by light of 550 nm wavelength. What is the angular stru;,p-n s u(2k.flgqeparation 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 6879thvogghkwq +yg ;-g-zr5 z 1zu vv( s37f;nu( nm is incident on a single slit 0.75 mm wide. At what distance from the slit should a u5;sov 1(y3th7g+gwqhv k(zrzzn 9f-g;v g u-screen 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 610 nm is incident on a slit 0.20 mm wide and the diy p: r1iuz8)hfoyu7n 0ffraction pattern is produced ony zf n)1p8oi0uury7:h a screen that is 1.5 m from the slit. What is the width of the central maximum?

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 580 nm is incident on a slit of width 0.300 mm. An obssi xf,v32u7iv.men 8i; d0bede xv3*qerving screen is placed 2.00 m from the sndi3ie.s,vm uiveqxfv7 0d 3; b82*exlit. 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+vcuw ( dk n7.0x2akw ku4*ohtm is incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the width of the centr4 wxdk(2 vutw7nk0c.a+k h ou*al 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, its second o4w/-szz o6 oxkrder mo6k/ sxwzzo- 4aximum 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 c*styuc g p39xo:yi; 7y+ y+ bpr8jzsa8entral maximum and tho: tpz8px+j 87ycs3gy +uib9r* ;yy ase 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 ruleqhd -a)1/anao t 8ioy7d with 50,000 linesdq)yao8/i 7-o htana1. 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 expi qykbdbp8,070 1cb lyeriment, light of 600 nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen. A second monochrolbbcd y 71qb8p0yk0i,matic 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 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 is the q82/zmgyz;5 ws 2mkv h.s2 s4ro8pieu1a-ose 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 light of wavelength 550 8ozou 2qp 8r2ae4sswm.12hyg- /s ;eiksv5z m nm?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  White light is spread out into spectral hues by a grating. If)go0q o-wm(9 cxt9yvf the grating has 2000 lines per centimeter, at what anm (yw-xtogoqcv09 f9)gle 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 gratd.ri b gr.*rb7ing. If the first-order maximum occurs at 7rgrrbb .*.id $20.5^{\circ}$, what is the grating constant (the distance between the slits)?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light of wavelength 500 nm is incident normally on a g+ q* d yf7m- ktp125pyr5ldqadrating. If the third-order maximum of the diffraction pattern it-rddfm+q y dp1py aql 5*27k5s 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 nornb x yuk:ju- -w9,m/yxmally on a grating. If the third-order maximumxby/u-n9 umxyk j-:w, of the diffraction pattern is observed at $32.0^{\circ}$, how many total number of maxima can be seen?

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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A glass plate 2.5 cm long is separated from another glasvrej6as- 7 63czzhmk9s plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent interference bands when viewed with rjz66ahvzk7se3- mc9 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 og+oo5 kg,b)bnf 1.33. What minimum thickness of this bubble will ensuro5gb o+ ,nbgk)e 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 is th nw;1cm h5bf.nvo2 r;ee minimum thickness of film that will give an i;. f c5nhnm2brv o;ew1nterference 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 coatingmu)k. ovhdcg gj/s9*+ (n = 1.30) on a glass lens (n = 1.50) for wavelength 50vm/sdujg*) hk o.9cg+0 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 otui :qq bsaf-8mham t60j )3e9f unpolarized light and the intensity of the transmitted light is 1. A :9mh8aifsjte 36buat mq)-q0 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 direction rmy x (wbi +bie+e0m3j4otated $30^{\circ}$ 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 glasskpf1m z 8l6 0ewxqava t-:ga5: at an angle of 8-fk 0vg5 p1z: aatwa6lx eqm:$57.3^{\circ}$. 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 polarisaee;f7-l/b j zer-analyzer combination. The transmission axes of the polariz;l-7j f /seebaer 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 its imm)jjy 2oh bwd00:v3ufage reflected in calm water is complywdoj0 0b32 )fhjv um:etely 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 pol -qw0)ckxf(w+r gd g5parizer and then an analyzer. In this process, the intensity of the light transmitted is reduced t)dpxggwc-+05 fk( wrq o 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 reflectinhu00v7sgl c,kwzw. a) g off a piece of glass of indev ,sc0.gua)z 0kw 7hlwx of refraction 1.48?

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