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习题练习:Physics Unit24: Wave Nature of Light



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

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

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1#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Huygen's principleidghf9 8( 7xdi.
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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 ajf5v,vf ng1m;jc41 l q 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 t- ev kap+nktd(z:aa70yv2p1do

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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 li/ xm0* b, o3(avsfopb 3xa 1ass54vbvmght is 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 enters into a medium of different otb 5;f-vd4bz jptical 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 (wavelenguv:4)43kai bn4y uot nth = 590 nm), originally traveling in air, enters a piece of glassvy)t u4 ab u3in4nok4: (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, enters m,z e),b.dqk -n.ieb.rss3c a a piece o) aserbsz,3m,k -.qn beci.d.f 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 li* majn, l4*h 1kv5owlnght spreading as it passes through a narrow 5*kn4mv lnoh1j,al* wslit?

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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 buildingsu z,:w/( +7vv9qdiprifqj ,m(yolerxu0 bf9: , whereas light is not noticeably diffracvdwup u +i0,7 bf rof(j:mlyz/: rex9q 9ivq,(ted. 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 lighr,qh 2r;d6.b qcl/:3 reih9g. , edrecwjvkk8t and dark bands when light passes through two or more narrowq,dceg:veb;qlihjr9 k r.rh 86c,k2e. dr/w 3 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 coherent if theyt28jakd t6z9w 6izzv;

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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 screen are in phaxh u3 m 13t6p1uptg/hmse with each otg hh36x1u/ppmt3 utm1her?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two beams of coherent light travel different paths arriving at point P. If the vg8i ;m(dd.fimaximum constructive interference is to occur at point P, gmi.d(; 8ifd vthe 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 arr79:k vx+ho sf;6ag iygiving at point P. If the maximum destructive intev:7 sk 96g;fy+xhai ogrference 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 sidxxa6,so; -6 v)j z0nzbbf1g7lagw. x oe of the central bright spot in a double-slit experiment, light from fva.x0sxz6 won)lb1j 6gabx-,7;zogeach 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-slit e u5cvy qt.0vb3xperiment, light .0 utcvb3yv5q 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 brigs*rj( fymn+ .u08abbhht spot in a double-slit experiment, light f+sb8 (yau fmbj n.*r0hrom

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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, ifomz2 6rymy6: r the separation between the slits decreases, what happens to the distance between the interference26:ymo yzr m6r 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 observedd sxy(6a q0gl2 that the distance between adjacent maxim0gydlqa (x6s 2a 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 pat f0) wu6z7gdihh $P_1$ in arriving at point Q and another coherent beam travels path $P_2$ in arriving at the same point. If these two beams are to interfere destructively, the path difference $P_1 - P_2$ must be equal to

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a wave from one slit of a Young's double slit experiment arrvfu9b/a gj b9.wd-d )vj, 2.aqa:x hz9i rsv6xives at a point on the screen one-half wavelength behind the wave from the other slit, which is observed at that po 6 9 g,/whr.ax2dbzbq)j:f-xv.ui sa vdva99jint?

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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 im;new5k, wcz xrm- /x4nterference fringes in a double-slit experiment if the separation of the slits is less than the wavelength4wm;/nwcr,xx m- e5kz 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 patteb ,q:xlxc i8i4rn usin84 ,cixx ibl:qg monochromatic light is

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which explains why a prism separates white liq9;gc: d +hqpaght into different coloh:;qpgq a9dc +rs 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 form iuzjno:/t8) sb 8w4ycbs

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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 2v(f5/gxy6pnnx9 /m avm qf k0called

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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 ca c8x fgq(ybeddbm)62/lled

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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 refracti wm pas1*hk2,)nfeg) ion when passing from air to glpag)f)n*hki ,e wm 1s2ass?

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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 ,egc;wl +zti/undergoes the smallest refraction when passing from air to glat/+wz eci,l;gss?

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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 plate with parallel sides, a4pw/gkn(dlhqju;/q x7w f a 3;t an akup ng ;q4w/jwhda/;x37 (lfqngle 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 holds6fz+bkv,r.qojai:m 0(8o pt5frvn r, up two fingers, with a very sm,bj5,kf.or iq( f a+pv0no:rm 6 vtr8zall 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 the width of the slit incr.n0mpuswap * -eases, what happens to the width of the central *su p0m.wpna-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 onk *qe,n tbee20z)fn*de has 6000 lines per cm. Make a statement comparing the dispersion of the two0be nk*n e*fz )2qdet, 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 slit separat*s)ydh4pfpl-cz+ i/0eo xcw5/ g lh 2bion, 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 samoyfhcl 5*gphb)/ /ie+-xl wzs pcd402e 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 cauaum;-kv 6 ho;hsed 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 monochrkeiu-a 7zoz2 k 2(ub6ifr* 4wvomatic light waves can interfere constructively or destructively, depending on their phase difference. One consequence of thi22u(w4zre-kii6u7b f kza*v os 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 glat5 zz;v t; zvl)wqn/c x1-xvs4;lxf2iss, strikes an air boundary, there tzvvl;x)i -/;v 4q5zzt xc1lwx2 sf n;is

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light, which is traveling in air, is refle ztq+*2dp+:qgm.wci3 e/ oqaocted by a glass surface, t+. tc qw: zioo 32pqae+dg/q*mhere 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 filmanqo9x7 1i86(z+po7h wbh ac w becomes very much thinner than the wavelength 6nz h97hxa 8(qo+w owa 7pibc1of 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 is then.pwm po: 0r.sz6gmh: minimum thickness of magnepmsg mro6wpn: .:0 zh.sium fluoride coating that must be applied to a glass lens to make it non-reflecting for that wavelength? (The index of refraction of magnesium fluoride is intermediate to that of glass and air.)

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens is placed on a flat glass plate and illuminated from above with mso )m*2wg 4bylonochromatic 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 o gb)wsm*2y l4and 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 sunglassep* z,z9it :guts can reduce glare from reflect,9u:z* t ztigped 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 pono/wuk pk 3m;3larization 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 lightpwqv*eugs9*iw5wo1 5 in a dichroic material like a Polaroid fwio*u5 qv91wg*p esw5 ilm?

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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 to eacf5(tsmz s*qcl) 7g9)nu n,silh other, what is the percentagegm( zni s fu)sc7sl9,lnq5)* t of the incident 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 surface of a lak:km :7eezoi0 fe

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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 0ox -px2 8khihgreatest at

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In which of the following is diffraction NOT exhibited8iruwojdi03 ,+y oa f+?

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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 mofe )h 7pv-a4pmre blue toward the zenith (overhead) than fpve4p-mh7) a it does 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 in a vacuum. It passes int h,z 3sivz4q ek(;gt-gl)kv /ao glass, which has an index of refractionhzvki(-gs,q la;) gk 3zve4 t/ 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 vals 86h-*j6c8gn3ap ey vhwb1 hcuum. It passes into glass, which has an index of refraction of 1.50. What is the frequency of theb 3h py-chn1 6eg6 lwaj8h8vs* 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 in a vacu+(mgo;t q/de cum. It passes into glass, which has an index of refraction of 1.50.td+/gce; o(mq What is the speed of the light in the glass?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in vacuum is found to tr4kal zqj -ywr*ph,2; mavel 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 ix(f 04 h(qdgtfr2e)tcey)i, gs 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 i1vda;kz*jz q4:it mee: pzcqq;3c4a1s 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 light falls on these slits, apn3od4 dnv/, ;8hsb lond producddo /;vs 438 lopbnh,nes 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 -p2 jzc;:*s piv yy cnfcma-ax)g58o4a double-slit and the third order bright fringe is seen at ascya cozf )jpvgapn*2 i4-c y;8-m5x: n 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 two slits is e/a muw6-: 9scp,c4b dgejzm;0) riis 0.050 mm and the distance from the slits to a screen is 2-s we sumic9):;b 4rjez cm ,gpida06/.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 separatiayjygu :d1rj a.fk7t( a4n.a*on is 2.0 mm, and two wavelengths, u4:7n.a*dyyka1a ( agjr tf.j750 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 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 wavelengtho7/ kmft)a 22n1v0rpnpgs ky. 634 nm falls on the slits. If there is a screen 6.0 m .vnpmy7o) t2fskrk0np2/g 1a 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 on a Young's double;ez:6 hvogj, /w 2n xnv-d8 ag7vk;ulw slit 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 betnljge;;w 2vukhzx 68 ag7o:dv,wnv /-ween 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 contain37fn xr20/gc;nnd,as+z gal t ing 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. Determine the angle between the two beams in dgg7;z n+/x0t,3arfn2as ln cthe 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;5*g, rvlin2j she b,*z0ween red light (wavelength 670 nm) is incident on a thi jv ewn g;0 e52zrielb*s,*n,hck 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 anguxwr f63:,cpp gq5ffk .udz9w4lar width of the centralf 4wf35 dg6xf p9,wqzk. u:prc 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 ii.r 2s(jln*6e/k 45hb mzrelf lluminated by light of 550 nm wavelength. What is the angular separation between the first two minima on either side of th (.er 5h6/ln*sek 2bjmrzilf4e 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 arl(be09w,b dfzc rr+w1h /tk0 single slit 0.75 mm wide. At what distance from the slit should a screen be placed if the second dark fringe in thk lw,rhf0wr r( 10z ctb+b/9ede 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 th-c+juypnj r9 fv 401rae diffraction pattern is produced on a screen that is 1.5 m-ravj4+nc19j0u rp y f 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 obet 2ut)s3 ay3zserving screen is placed 2.00 m from the slit. Fina2y3 z3)tt sued the position of the first order dark fringe from the center of the screen.

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 580 nm is incidentp+:sei1 pvg8 m on a slit of width 0.300 mm. An observing screen is placed 2.0i e1sg8:p pmv+0 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 cen*/,kb xgc x;,ynmm4 rntimeter, its second order maximum i4* ymxxb;rn ,/,gm kcns 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 pea.j43 g1kf8kcoxc7ur3 g hs/ dr cm. The angle between the central maximum and thk fc4/1chok .xg3dagur 8 73jse 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 li lyx+k -8dn+9qcb6dwide and ruled with 50,000 lines. The second-order maximum is seen at8ll9 xyq +kb+n -di6cd $32.5^{\circ}$. 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 exper iyo ag7r6 +agx9x8e+.mgvc)ximent, light of 600 nm wavelength produces a first-order maximum 0.350 mm from the central maxg8im vgey) 9+ ca6a+rxxo7xg .imum 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 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 centimetezbq kuhanvi(lp+(uww 63 * r2(r 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 bq w 3harv2(bnklui6p+ wzu(*(eam 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 byg ) cprx lmlk04i61wfi:mg56.w6x9s 5so y cni a grating. If the grating has 2000 lines per centimeter, at what angle will red light (640 nknio1 ipfglcc0 s6l4yg w6:i6r5m. ws m 59)xxm) 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 calibrc*k(jz.u u.pk ate a grating. If the first-order maximum occursuzup kk *j.c(. at $20.5^{\circ}$, what is the grating constant (the distance between the slits)?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light of wavelength 500 nm is incident normally on a grating. Ify6:;z45 c+nz6xew2qkmfk t lf the third-order maximum of the diffractionk+ z56ncq4fy: 2 6mx;kwltf ze 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 onza i v;tbm;:h.1tob0c4,vxuh cz3 v*r a grating. If the third-order h0uva :hc ;z 3zrbo1bx;vmt,* ti.c4 vmaximum 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 anu9)+ g6 gerbu;d4rhp jother glass plate at one end by a )bh64pu ;egr9 gru+djstrand of someone'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 thickne6d)fckq . acg r;u96gnss of this bubble will ensure maximum reflectance of normally incident 53gc r.g udqa c9)6;nfk60 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 u6kk qa:)xvbh6m .4wi). What is the minimum thickness of film that will :uk6a) bhmxvw.6ki 4q 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 t7nk*edwx (l6u hickness of a nonreflecting film coating (n = 1.30) on a glass lens (n = 1.50) for wa7kx(n*u6dlew velength 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 o4fteh2 237 sgz xtni5of unpolarized light and the intensity of the transmitt5t n34i zot2xfs2g eh7ed 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 preferr*7 ;gps)jjj96de8 xd7eqw (ocphi0t c ed 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 in air strikes a flat piece of glass at a,8 xcaug;4+ldpfzn2 gn angle of 4g2;puxadglf 8zn+c ,$57.3^{\circ}$. 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 passebm.rm1d s6z0o dxv/.dd through a polarizer-analyzer combination. The transmission axes of the polar0 1rxmdodbz /.6 sm.dvizer 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 image reflec vzs8a e9l99on*6epvz ted in calm water is completes8ep9 9n zz 9lo*eva6vly 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 thqqmlu: . w*8mxrough a polarizer and then an analyzer. In this process, the intensity 8wlmu:qxqm .* of 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 g c9k :;6v,zoyc ugp6kand reflecting off a piece of glasg9v;kuyz :k66o cpcg, s of index of refraction 1.48?

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