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习题练习：Physics Unit24: Wave Nature of Light
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 作者: admin  发布日期: 2022-08-28 11:19    总分: 91分  得分: _____________

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

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1#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Huygen's principle6c/oy- /a: frt0fnv;)v wwocs.
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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is a fal evp:6jdcymk5 )k wz70se 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 to:1y(ir1bmuhh t+t ub c,f5pz 6

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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 tkvgy )p4:mzz .o

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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 optica4kj,;a oo,7wp9) fufvo(hypml density,

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light (wavelength = 590 nm), originally tr k5ojf*1kisd* aveling in air, enters a piece*k*jkf15d io s 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 = 590cd5qyebzm6e f7 9dt -- nm), originally traveling in air, enters a piece of glass yb5 fdz-eqe d796 cmt-(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 aufhhey5 w z9 l-lo,crj5l;4o+ s it passes through a narrow sc4fzyro-, ;hol l 9h+5euwj 5llit?

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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 bui2:k;qdy k,b hyldings, whereas light is not noticeably kqh 2by y:,d;kdiffracted. 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 bak eemsv.-(/rd nds when light passes through two or more narrow ( /rv ked-.messlits?

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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 coherej6uov :uylbi7; z8hx 3+ ,piyqnt 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 light rays striking a sr5uut4 l)):t6xwj0 f ac me.hxcreen are in phase with e6h45lc f: )mwtuauertjxx)0. ach 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 different paths arriving at point P9vyq ,+9g zb/quh0;gxmlr: ak haa3a0. If the maximum constructive interference is to occur at point P, the two beams must,bvk+a;ur 3yaxa aghqh09/q: lgz 90m

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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 travenod3jqa z-y 55ex)t/bl different paths arriving at point P. If the maximum destructive interference is to occur at point Po/-5 xajdb3y nze5tq) , 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 double-sldweob82/ s7.q ucet(h it experdewb7th c s(2.q8/eo uiment, light from each opening arrives

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first minima on either side of the centrahdch1 /4re) osl g3h d3pwq5)by 9uq5ol bright spot in a double-slit experiment, lightgcqqbe 3hplhu9w51)o/r3hdd )4 oys5 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 dk c,t2p3z gt/ y1aauji3 ayz;:ouble-slit yp:3jzg au tk/ay23a1z; ,ticexperiment, light from

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a Young's double slit experiment, if the sepaq1 lu /41c7vsd*xv yxlration between the slits decreases, what happens to the dista xlvlxq /*cuv14 syd71nce 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 is observcfx4-f)w6 ,e99qv akgmn5dl ged that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance bem)nw q fl9-f4x,6akg9 5dcvegtween 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-cylkao- /pa 6h $P_1$ 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 doubl 6e(o5/ncah lr)+b0e8aa swcle slit experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, whia swl8b6ncha+)(eor0 l /5eacch 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 doubuzlt l;kcawt*,.*m :s9u sm 1nle-slit experiment if the separation of the slits is less than the**mk9s,ns :lw lt1 mzua;cu .t 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 interfer1 qypi5uj:yw7v4pg s9o,hd z1ence pattern using monochromati qg7o ,du zyh1:p9pj54yws1v ic 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 separatestr*p, s7 ++m uofzbxv/u h9e.he9k )cx white light into different colors iuk r7xhxs+zv,eu m+9t)b. p9eo *cfh /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 raichp/3 hy *d416g3rzjnax, ra jnbow 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 s-u0)zh )4 5wiwkh;b 8uyxfnyn horter 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 1je3*jb asm/ jthan 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 undvurvzmy8 6 u9my)n2x d9m2 v1qergoes the greatest refraction when passing from air to glass?y9 mq6u) 2 r9dvvv8nyx2 zmm1u

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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 undergoe eapw5;(a7lp2ama,7rugn6; iwo;fu ws the smallest refraction when passing from air to glauw5gwa plm7(7n wau2r,; 6ifoa ap;e;ss?

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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 m;z7qfh(m t -fa thick glass plate with parallel sides, at an angle between mtfhzqf; m-(7 $0^{\circ}$ 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 v vf5kzu3 /bmr/96s+t;nbih4to5 kit very distant light source. If she now holds up two fingers, with a very small gap between them, and looks at the light soutit s3vkktih;/96mrf +b4 5 ubnozv /5rce, 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 increases,mcyc ; .vl+anipnbyp8 eu--l16ejs6, what happens to the width of the central maximum on a scejvcs ,bemn 6y+ay.lu l; 1nip8p c6--reen?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two diffraction gratir0dwv mvh6/z;6pwwt+ ze5g9xngs; one has 4000 lines per cm and the other one has 6000 lines per cm. Make a statement comparing the dispersion of thzh6r/ 0wmzetw6x;5+ 9p gvw vde 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 separat vs1rmy-slb)n/t -5*xtxg 2e eion, 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 monochromat/ *mne ey )txxtssrl2-g 1-b5vic 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 reflection ap5c7e2sgf9cx n7 j6 xpa *cq6and

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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 construc u,b,n 0apwptnvp2m*nh5l.f .tively or destructively, depending on tp.2 l pwabut,hn,pvnfn0m5 *.heir 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, which is traveling in glass, strikes an air bound7cj+p-5ijh bjaok ogrn.z 6+6ary, there ick p6zaob-o6nj 5+.ir+hgjj 7s

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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 r(llq8jc4uww , eflected by a glass surface, theu(lj wqlwc84, re 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 viq y1+xv-n;b5bvx itf9r obm/9ewed in white light. As the film becomes very much thinner than the wavelength of blue light, t;x / xtq9ro+b v1 ybmb-9fvn5ihe 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 flurtrgn 3m67 f(auysyh)h)t, ne,kju /) oride, what is the minimum thickness of magnesium fluoride coating that must be applied to a glass h,u3eyhfr( )) tgs /nnyrum 6jak)t ,7lens 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 aboyl-6i5r li9 reve 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 whee5il iy 6l-9rrre 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 certain sunqy:fx,jc ym1 nw;:n2x glasses can reduce glare from reflected surfacnc:m q2yx n,:y1wfx j;es?

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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 defvfk yfr,07(r p6z4gm31 kfkls3 -tjh jined 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 a dichroic material like a Polarzp7by,rj 2 1ll 9)pavroidplvl, ) pbjar72 rz9y1 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 axesp2 6loje 8yqb; of two Polaroid films are perpendicular to each other, what is the percentage of the incident light which will paj eqp ;8b6lyo2ss 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 oj*g;sd; 8ean7 k*ecd df 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 greatests drr tivws4rl k3ok-o e6yp-()(t (q) 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 d+i :lww)u/c edl *pll3iffraction 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 pjpejy 4i8omq j7m )+.appears to be more blue toward the zenith (overhead) than it 84mp)pyji .qjjo m7+edoes 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 panw3+ a6 gzn/qvsses into glass, which has an in6a+nq 3/g nwvzdex of refraction 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 vacuum. It passes into glass, which has az6sqvh* wmw 2ky0 kfb2h/ o3sg6x3a.nn index of refraction of 1.50. What is the frequency of the l2h 2yobs wf q6gvkzn. ha*k/xws3306might 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 vacuum. uk.u2c4u; goq It passes into glass, which has an index of refraction of 1.50. What is the speed of the light in the glukquuo;cg.2 4 ass?

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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 is7)vz lt(/ anyx 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 found to travel at m+cq5xxt-g 9u$1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the frequency of the light in the liquid.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in air is foun v:l; j9jpxkz2d 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 lightti 32;gcrn f2ms;y na0 falls on these slits, and 0n3y; 2r s;tfnimag2cproduces a fifth order interference fringe at an angle of $32.3^{\circ}$. What is the wavelength of the light?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 575 nm falls on a double-slit and the third order bright5e8p/ pfc9: 0vp dxttu fringe is seeneu/cpppvt5dt: 9x0 8 f at an angle of $6.5^{\circ}$. What is the separation between the double slits?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a Young's double slit experiment, if the separation between the two slits is rqw(7-ds7k zu+hp:g nbd/n n10.050 mm and the 7gkd7s- / znpnhb+(rd1:unq wdistance 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 exp50f m+a3knm7dskf v-keriment, 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 pattern first coincide with a bright mn35m0kk +avd-ff sk7fringe 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 wavkozuj*v.uz hi2 vm 9/1elength 634 nm falls on the slits. If there is a screen 6.0 m away, how far /k u*joi9hz1uzv v2 .mapart 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 og;9b-;tz(1,d u xbsntvhv4kin 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 th z,vtd4u-1v9hsg(nb ;;ktixb e 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, strikes a g. x5+ utusqh)ajt6yu t8.ac+nl. zj*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. Determ .usj8*5 a+zcut + yj.6tgn)ltx.q huaine 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 (waj1,qyz h+vph 7velength 480 nm) and red light (wavelength phyq+ jvzh,71 670 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 angu56bsmg y +673 leqmseklar width of the central diffracti7sye lmm56s g6+ 3kebqon 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 illuminbbv*zp r75j p.ated by light of 550 nm wavelength. Whpp 5.b rv7*zbjat is the angular separation between the first two minima on either side of the central maximum?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 687 nm is incident on a single sl arj fk*dp8;b lq;syxtly b3*/6 z4v,lit 0.75 mm wide. At what distance from the sli6l*lq;3jbv b 4xtlzf ydp*8/s ary,;kt should a 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 di5w9xbkhq 6hcjg g(*txj)v 3k4ffraction pattern is produced on a screen that is 1.5 m froj*hxqgh 6()t kkc vgb5j49x w3m 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*oa7dxeirho o b. ;bfp c9-ykz.l28 4z incident on a slit of width 0.300 mm. An observing screen is pla*p2-78 c 9;biybkfrle4od.a zzx o.ohced 2.00 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 nm is incident on a slit of width 0.300 mm. An oxy (7qyx aty+t+ tq31+6 ibyfqbserving screen is place 3 ttfy a6b+1y(qyqyx7+t i+xqd 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 lines per cq3/p (f2zrcaeentimeter, its second order m2z(c/rpf3eq aaximum 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 cent) vx-gb h)xvzrt*7 p-lral maximum and the foux lp)bvvg*7 t)r-x-h zrth order maximum is $47.2^{\circ}$. What is the wavelength of the light?

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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light is incident on a grating that is 75 mm wide and ruled w)cds( my6feifu7g64v ith 50,000 lines. The second-order maxim67myi fcg6v ufe4 sd)(um 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 ;bw,x+v07esh nwrne5a first-order maximum 0.350 mm from the central maximum on a distant screen. A second monochromatic source produces a third-order maximum 0,be5nn rx0;wwe+ hv7s .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 gratingsatet 5)p 9q,*rmp3yo has 6000 lines per centimeter 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 beam of light of wavelength 5*e9pt)p r3mt sq, y5ao50 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 9wq9wbkcseo. k7e6v +a grating. If the grating has 2000 lines per centimeter, at what angle will red light (9k6vbc7 w9+ ekswoqe.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) ej35er 3+e4ix8-mk y 1aejtd pis used to calibrate a grating. If the first-order maximum occurs 33ee1t+4a jjrx eem id- pk8y5at $20.5^{\circ}$, 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 normal2 cnjba1553/lh8t jko2mby0kzij 5fqly on a grating. If the third0/1jcl k5 3j b25j zba2f tqym5ihn8ko-order maximum of the diffraction pattern is observed at $32.0^{\circ}$, what is the grating constant (distance between the slits)?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light of wavelength 500 vfdua;wbyo ld qq,(+te7:3 c8t4 ; yovnm is incident normally on a grating. If the third-order maximum of the diffraction pattern is obsyo,;: ub lvcadyw3qfd8+4qt;o 7etv ( erved 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 frop d2 lxv9ym6lb2i2 nv.m another glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are. 2 l9ynm2vlipx2b6vd 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 w5yv q.2b(yd 7oqpd0 u1.33. What minimum thickness of this bubble will ensure ma2yu(qo d w5db7.pqvy0 ximum 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 illumu ,/9vcr- xfkxinates a soap film ( n = 1.33). What is the minimum thickness of film that will give kv u f,-cxx/r9an 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 coating (n = 1.30).iqi/n)y /sd*lwg4p a*im 9-yb j7xdqd p-7bn on a glajmy 7--nplw/)q7iqy n94a bipg.d/* dd xibs*ss lens (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 .lx7mg dwc):w a beam of unpolarized light and the intensity of the transmitted light is 1. A second ideal polarizer is placed iw7m)lxg :dcw.n 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 rotated8)sam-+h(ivzdja: v t $30^{\circ}$ 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 xy) :8hrfmfp/oci -e- flat piece of glass at an angle of -fh:ce om)yi-/x8 prf $57.3^{\circ}$. 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 polarizer-analyzer combination. Tz/7iup s odf;t 3 q2fprge21(dhe transmission axes of the polarizer and the analyzeig 7( fet dpuo;qfd 2ps3r/z21r are at $30.0^{\circ}$ to each other. What percentage of the unpolarized light gets through the combination?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How far above the horizon is the Moon when its image reflected in ca25bsj9+5r et qmrlw9rk7k2 kj1 yi4qq+oko5 j lm water is q5r9o+ erk55k4 lybj7rmkjwi92s+t12ojq q kcompletely 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 polarizer and then an analyzer. In th69p::c-bjenxd :x r(b ar/tfs is process, the intensity of the light transmitted is reduced to 10% of the intensity incident on the analyzer. What is the angleb(b d/: ret sxc6:-p:9najr fx 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 reflectingru0duv (a6hagl h,1o5 off a piece of glass of index of refrac(hguv6l oraa h 15,0udtion 1.48?

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