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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 princivgrc-prw+g2w c: 6y tb5q6ew2ple.
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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 s j34af3arb *mis 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 ligrc/m p/ywvl/ fto8zo oa:./6 aht is attributed 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 li0 ni*bv,o,t p y:kmyl1ght 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 nn.w+/ gzfb:wh(,tc r 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 (we cs 01c9t2pqmavelength = 590 nm), originally traveling in air, enters a piece of glass (indecp0 s 1mec9q2tx 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 (wavelar6x8hyghiu5-9 5s t6 .uy5uro+ hdgi ength = 590 nm), originally traveling in air, enters a piece of glass (index of refrac5 ih d6a 5 u5ry.ogruihhsxt6g98y+- ution 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 spreui4ublzxtb;u0p)n 4v) z,k0w ading as it passes through a narrow slitviwt 0b0z) ubzxn 44k pu,);ul?

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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 zkmmo-:+ hou.gc zb. ,objects such as buildings, whereas light is not noticeably z . kubo -m+c.g,mzho: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 responsibleb2hskm0jwn /x zof of(73f(f 4 for alternating light and dark bands when light passes through two ow7f/oos(zjmbxf fn2 k3(h0 f4r 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 coherentpsmhpv;unhu (*0q b 1v ,c,wb5 if they

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What do we mean when we say that two ero8ujmcu(a ss+5 ,0alji (v7light rays striking a screen are in phase with each otheou8s,us j +7 0(cm(vleajra i5r?

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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 lnc 3ndd 5 bbqqgxu9i+7lr+6 (wight travel different paths arriving at point P. If the maximum constructive in(6+ 39dclud n7xqrbq+g biw 5nterference 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 g*;f*oy (kpfm-(ymqlm +duv, light travel different paths arriving at point P. If the maximum defdyglm*uyqpfm (kv(,+o- *;mstructive interference is to occur at point P, the two beams must

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first maxima on either side of the central bright spot in a doubxcu+0 jc4e2 bkle-slit experiment, ligh4e 2cuxj0 kc+bt 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 -mi*yryp/kenvm m im(/k28/j the central bright spot in a double-slit expery/ jyi8mip*//-kk(nm2 m evrmiment, 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 double-slit nvevvykdbz5nk.i. *g72z 0 t7experiment, light gi*vb. knz7yt zv. e20k5dn7vfrom

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a Young's double slit experiment, if the separation between the slb0 6yq;g/)ouu :isg(v fkq8plits decreases, what happens to the distance between: b(ugu) pols8k6vy;q gif/q0 the interference fringes?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, it is obs*ces8 .ke/na verved that the distance between adjacent maxima onc. eks n8*v/ea 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 um5m:w;jnv3sh $P_1$ 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 //omofd78kyp2iv 0vzx:n *n l of a Young's double slit experiment arrives at a point on the screen one-halxf: 2n p7vn0 do /im/y*lvok8zf 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 interference fringes in a double-slr2t; : q-bufxfwfg)8nit experimwb;2u-:tn gff )q xrf8ent if the separation 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 pattern n(n 2 md9y9 th9bzzykqtw7/:c usingk(q z79hw92ycbndnm9:z t y/t 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 light d(m2eiy+ ol*finto different coloriyfoe l2d+m*(s 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 rainbh akxsd -qd.,8ow 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 shortedhq/ 9p5kxlh4r 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 *s ub ed7nm*+inm 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 greatesi0 9,7s* egemeziws 4ft refraction when passing from air to glaws e4 mzgsii*70,e9f ess?

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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 passing frqnf-. gy. np(iom air to glass?p(n-g.n .f qyi

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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 s av80oro5f:pk:afy9br 0-ya oides, at an angle between5r kpo y8o-0o0av9::ryfa baf $0^{\circ}$ 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 soey/p0b2p2ig)i8q /a hqx ;chrq4 y *oburce. If she now holds up two fingers, with a eg yqqh4)obh02 p ;a/x8ipiq yb rc/2*very small gap between them, and looks at the light source, she will see

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a single slit diffraction experiment, if the width of the s52u4 3gzagzxvv)a-h f5m4jj lz,vdu . lit increases, what happens to the width of the central maximumz3udvv4g4zza)x.a2 g u55- l,j v fhjm 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 40.6kk7 pm ,pvsz3 aqmxwc-(en9oqi/mke( br 4100 lines per cm and the other one has 6000 lines p6vrpme(kqnekxozam-., 1 739c4ip w kb/( smqer cm. Make a statement comparing the dispersion of the two gratings.

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two diffraction gratings with the same slit separati g+jwh*cn4b9uon, the only difference being thaw9*n+ghub4 jc t 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 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 byz8tpv jss 906n 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 wq.rx qy 50mw5taves can interfere constructively or destructively, depending on thr50wtx q. 5qmyeir phase difference. One consequence of this phenomenon is

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light,(m 4k ft59vhcg which is traveling in glass, strikes an air boundary, there is9cfh(mt4 v5 kg

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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 1 o2 l7+g3/y(kmruk8ov uj u6oy(juhnglass surface, thel u3+(m21nuor7gh6uk y(oju vy 8/ojkre 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. Asqvk wfpd+3 h9:9g x.uzr(u 6xu the film becomes very much thinner than the wavelength of blue light, the xgf.vh6d(3wrq u9zkx+ u pu:9film

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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 n-ce2shf;i7 y/b v.kperm: f*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 refracymc* ;. pfnh7 ees:/kv-ib2frtion 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 i;*4s wp 3xtecflat glass plate and illuminated from above with monochromatic red light. When viewed from above, concentric bands of red and dark are observed. What doec3ptwi4sx ;*es one observe at the exact center of the lens where the lens and the glass plate are in direct contact?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is responsible for the fact that certain0qzk; 8ez69k bdx7bq p sunglasses can reduce glar79q qep6;x bb0zzkd8ke from reflected surfaces?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a beam of light, the direction of polarization is dc m9qt1.k6yhc2yfdh e 8xf x.-efined 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 12a2umv xqx 8rpolarized light in a dichroic material like a Polaroid filmux8r a1vxq2m 2?

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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 al-zgs+b.ks2 ,*f c,sdma j(w nre perpendicular to each other, what is the percentage of the incident light which will paws(ajknl-zsb f,.*g dc m,2s +ss 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 laks. b wqh,a3rg+s a1-eke

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The polarization of sunlightcate mye(9f)1l w1z7fdmbt*. is 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 isx8zlud,fgkw (0,dls2 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 app g3ep of f6p ye2xaz;c(te63b-ears to be more blue toward the zenith (overhead) than it does toward the horizon. This occurs becauseoe;fpetf3ap y z gx2 e3(bc66-

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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 passesk),oqjh-va6pv d )n l1 yxb+c, into glass, which has an index of refraction of 1.k)6),l-hndx vjq b,+ vyop1 ac50. 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 vacuum. It passes into glass, whi-au.ee5u s/x ich has an index of refraction of 1.50. What is the frequency of the light insiueisx- /5ua e.de 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 vacuum. It passes into glass, which hasx24dn, )b;yy ftl:umq an iq),4yxdt my;bf:lun2ndex of refraction of 1.50. 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 travel rb+y: 7 irmlhi +h4)duat $1.96 \times 10^8 \; m/s$ 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 aimh 56cwfi8)grqki7. b9 tu7nnkllq53 r 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 ).yfpf:2 rzoj n-vnp8550 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. Monochromatic light falls on i:4w7ba2 owjd these slits, and produces a fifth b:4w7iw2jdo a 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 the third order brig6vn5z. uyl8 o)kj9 svcht fringe is seen at an a l kuz8.5o9ny6)scjvvngle 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 ivzkaf 4:gy y/9s 0.050 mm and the distz4/fg9yy :vak ance from the slits to a screen is 2.5 m, find the spacing between the first-order and
second-order bright fringes for light with wavelength of 600 nm.

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, the slit separation and. vq8,konejt;;4eis 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate jq kev;;a . ndnet,84othe 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 wf1p.o s mwmu)w0u0kbh88;,ieg o( fq-xwwc/ wavelength 634 nm falls on the slits. If there is)e ;pw8-c.wu 0ikmous8mx gww whb(,/o q0ff1 a screen 6.0 m away, how far apart are adjacent interference fringes?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A monochromatic light is + dfr uler9a7qh-*j7qincident on a Young's double 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 between the third-order bright l ae rh 7fr9q*uj+-7qdfringe 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 tv9 yp+ihfm:m tlq g7-* bad+q;wo wavelengths, 480 nm and 700 nm, strikes a plain piece of glltd ;+m7hbapf*gqyi -v 9:m+qass 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 nmyc2 d-*nsxd,mnb1uq2 ) and red light (wavelength 670 nm) is incident on a thick piece ynnm,s2c2d 1 d*x q-ubof 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 an/yj2 zs :cj9rxmt87 z na)4k*zgkci)vgular width of the central diffraction 92 7*j/sz)8:xvki myrnt c zcj)gzka4peak?

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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 ill o)a1t 8gfo*bf.r -8 hekpjsn4uminated by light of 550 nm wavelength. What is the angular separation between the first two t)j s4pbo- kh8r ne*.gffo1a 8minima 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. At whatq5-( ;ouqueyq)vd4a h distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the cen-uq5aoyuvq(; hd)4qe ter 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 o94p 6ool i5w*8mdm gzis incident on a slit 0.20 mm wide and the diffraction pattern is produced on a screen that iszo*5pgiwo89 md 6om4l 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 ohg -sera ::zb*l+ y2(k dhmbh)bserving screen is placed 2.00 m from the slit. Find the position of the first or)s g2b h:*h(mza kh+r-yed b:lder dark fringe from the center of the screen.

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 580 nm is incident on a slit ow 8oij2d*ip6ets k9dkv2n(5lf width 0.300 mm. An observing screen is placed 2 62pv(9 2*dk5 8knijtowsldie.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 lines per centimeter29ket: 4t7.q9d)fk ofkf ob qy, its second ordeq kd.f kt7oqf 29:b)4ykot9 fer 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 linesbh/j b5,h ulqda;e( /9fdkg1 x per cm. The angle between the central maximum and ta9(5buef bdkj1l/ g xq ,;hdh/he 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 graaw , ebsguj3b4gw1t /r4ov 96mting that is 75 mm wide and ruled with 50,000 lines. The second-order maximum is seen 4sg1ur9 b3 wtjamg6o4e/w v,b 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 firzk2 s -k n:aopi0(wf,hst-order maximum 0.350 mm from the central maximum on a distant screen. A seck 0i k:,f(a-w2spo znhond 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 centimeter ruled on it. Whc/q6hw,g) hy+vhf3 gu at is the angular separation between the second and the third orders on the samw )hghf q,3uc6 hy/vg+e 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 spectral hues by a gratinga3aw+0vgs 5 yg +b)tfb. If the grating has 2000 lines per centimeter, at what angle will red light (640 nm) appear in the first o0swb53vt +abg )ag+f yrder?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A He-Ne laser (632.8 nm) is used to calibrate a grating. I jhcnhwou5;k n/55l8 sf the first-order maximum occurs hk8on 5s/chj;5lwn5 uat $20.5^{\circ}$, 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 3uf2kr5g,6 bygc1od b. cf;b ygrating. If the third-order maximum of the diffraction pattern is o,5b d. yfbc ogf6;b gy31rc2ukbserved 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 gratizqx)038e 8h2 mxkt:t.fuwybeng. If the third-order maximum of the diffraction pattern is obuft.8 :3wb0exe mtk)8yq zhx2served 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 end by a5. xxe. j;a)hrwjo h9j strand of someone's hair (diameter 0.010oxe5x. wh;)9jjar hj. 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 thickness of t7 zxqm c tz(b48b n.e ad 5k-f-4:tuh7uxl)ecdhis bubble will ln -e.7q47mef 8bh -tk:4caczxd b d(x t5)uzuensure 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 =z3rx7/x zh er) 1.33). What is the minimumh 7z)/xexrr z3 thickness of film that will give an interference when the light is incident normally on it?

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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the minimum thickness of a nonreflecting filmy* vy, 6bkt/yvbyth;rms +m/9 coating (n = 1.30) on a glass lens (y/k +t yyvr,m9s/t *6vm;byhb 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 pzjs. )5mx6 +g/, yjsww ltm1hylaced in a beam of unpolarized light and the intensity of the transmitted light is 1. A second ideal polarizer is plasy6 s wgwmjhm5lzt+ 1/. ,)jyxced 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 rotated n hz 2bybl):9am;sqe;$30^{\circ}$ 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 strix gb24b,1lxngh :v-ie kes a flat piece of glass at an angle of giglhnv :bx21 b,-4xe$57.3^{\circ}$. 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 ay)c c)6,od +zip(apem polarizer-analyzer combination. The transmissioyp acz6cop+i)d )e,m (n axes of the polarizer 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 ima ygp) p1gfr1y:ge reflected in calm water is compyf):1ygpr gp1 letely 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 po mgxq,:dq(* spc7*2at qe7 ugclarizer and then an analyzer. In this process, the intens qx ud:m277*gt,p a*sqcge(qc ity 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 travel l fh.smlz555ne85ewsing in vacuum and reflecting off a piece of glass of index of.5sem5h zn8wl5 efl5s refraction 1.48?

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