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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: 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 principle.i1 kp)0j.:xxyr: :y e1z slugy
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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 false statemen 3n8slc 4zq;oo x2gv)gt?

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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 0j;;tzaofzc*uf 6f1wl ;l ih8attributed 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 att /ysagos,p)/85nyypq nzw(d8p8 s j4oributed 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 diff*c5 o9 pgtw-qyerent 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 = 590 nm), originally travel)g98+9z1k pdag k:ut im6ezc ring in air, enters a piece of glass (index of refraction 1.50), its freq g9pg8zcir k z6dkue1m+a)9t:uency

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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 travelingq1-du gup91 zf u5*efi in air, enters a p9*pfugqiz-uf 5deu 11iece of glass (index of refraction 1.50), its wavelength

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is responsible for light spreading as it passes through a na*x*s+6gi+p xoa ello1rrow slit?*l xoxo+6a+*gip el1 s

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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 hr5q3 h d49fbg*3hc/im q1lln as buildings, whereas light is not noticehnf1hm/brqqg 9l4dl 3c5i3*h ably 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 res sq4f5cw* u1yyponsible for alternating light and dark bands when light passes thrfcq*yw4sy5u 1 ough two or more narrow slits?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two light sources are said to be coh6ea ezaw ipzf7;4y ;n8erent 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 screen are in pha0b vrduxv2sx:- .;zua se wit- 0udr vvsa;:zx x.2buh each other?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two beams of coherent lighzk)02v+ t5 d08a0q lkcvjaytmt travel different paths arriving at point P. If the maximutkzjkyq0+ 8 0dav v )5t2m0aclm constructive interference 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 light travel different paths arriving at point P. If then3 :e znz,xo9e cm/ rpa;0p,xqw3t0gk maximum:;ctn0 nzkme /a3worze,0x ,9xpp3qg destructive 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 ei(p6d)gs-o (xlta ) cqmther side of the central bright spot in a double-slit experiment, light from each og-dpsm)xa oc(qt() 6lpening 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 eitnv ;zc spb f:ykqj00i q ,t/ej:,z:j;bher side of the central bright spot in a double-slit experiment, light from ea;vpf j:k,qjy0c stiejqnz; /,:0zbb:ch 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,/or vnx -zgmqqrrz6 sg:d7583r/km oyi6 t1t the central bright spot in a double-slit experiment, lighv:r t,q5 m7gk-/ ryszdn1 o6rmg8r/tqxio 6z3 t 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 exxbz g,sg*w8b ,periment, if the separation between the slits decreases, w gzbg8s,*,xwbhat happens to the distance 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 experim;m 61 ooyvnd6uent, it is observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the dist6ony 1dvuo 6;mance 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 lc0v2n;-l mhx xight travels path $P_1$ in arriving at point Q and another coherent beam travels path $P_2$ in arriving at the same point. If these two beams are to interfere destructively, the path difference $P_1 - P_2$ must be equal to

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a wave from one slit of a Young's double slit experiment arrives a f8lbn/ .xmwmv9r46e9:jdcslsu 5wc/ t a point on the screen one-half wavelength behind the wave from the other slit, which is.ls x9drn5 ml/98mw/e4swbfuccvj:6 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-slitk:.qlgxki1 7wc(o 5,5sc b5qjp;ppr z experiment if the separation of the slits is less than the wavelength of tp.qx, kzjkrw1c5 p b pilog55 ;sqc(:7he 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 maximadut58h ia7iup09u g3 c in a double-slit interference pattern using monochdpug c7uu5i9t3ih08a romatic 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 into differenr79pel1wfo3dkf t0 8z t coll tdr83ko0 17z9pffew ors 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 allo 0x2 ,41jvprhna oba9dws a rainbow 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 slightug8gv1 01v ptgly shorter 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 t/ (xr, b3k/dt 4yhxuwlhan 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 pa)z-w yrmzmp1emx m- 04ssing from air to glassw-)-1m z xm0yemz4mrp?

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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 wh2 ic p7;(obtxxen passing from air to gt;2o b(ixp7x class?

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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 onw pwa1sgi/ *lhkc,o9 2 a thick glass plate with parallel sides, atwh9splkwo2* 1ci/g a, an 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 verymy) cmqd1f32 w* dha3x distant light source. If she now holds up two fingers, with a very small gap between themxqwm) a3d2cy f*3h1 dm, 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 1pbd3bt9c 8vg width of the slit increases, what happens to the width of the central maxb38t1gp v9cb dimum 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 lin(4umhpo 7zhvl4/ c a+ges per cm and the other one has 6000 lines per cm. Make a statement comparingp cza/uohm 44(glhv+ 7 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 diffract- fpc4j.ikes.ion gratings with the same slit separation, the only difference being that one grating has 3 slits and the other 4 slits. If both gratingss j4e.f -p.cki 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 by z:95zkna yj q9reflection 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 wa ig-wo/eygt :x 9r2j)rves can interfere constructively or destructively, depending on their phase difference. Oneioj9gt:re2g -wx/ r)y 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 z.b ju cpcm:,-hry*2rr3w 2q6on1k erboundary, therz nwe*u3y r:br16,r2jpqm-ck 2o. h cre 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 tw b4i1ks/0q tsraveling in air, is reflected by a glass surface, ws bkq 4s1/i0tthere is

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A soap film is being viewed in white light. As the film becomes very muchqprw- dmdrcyu sn 2c*/k4).9m thinner than the wavelength of blue light, 4ud-c)*yd rcqn9sk m.w/ pm2 rthe 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 41i hph 7bjpzqi8t:q7 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 refraction of 7pqhi7bip :zq 8hj1t4 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 gla-5 eu,wou4t1rhst f(mss plate and illuminated from above with monochromatic red light. When viewed from above, concentric bands of red and dark are observed. What ,ttuf- 1(hom e4swru5does 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 fav*rz **-wh).zxnbza gct that certain sunglasses can reduce glare from reflected surf z)wb.nxhrazz v**g- *aces?

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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 o+.k0 p3j yrw4 9xmu)auh vovc9f 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 polarizi(nt.t02 fjcgnhz.p3 ed light in a dichroic material like a Polaro.p thtc. 3 n0jgzfin(2id film?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the transmission axes of two Polaroid films are perpendicular to each othevla6wnpo 4. 5 i44w8xxered y-r, what isd64 oe5.vwpex4 yaiw -l4 x8nr the percentage 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 surfay*+zx :tq 9ow*m hyzs* dg-sk *tm2xw6ce 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 qb)yc,gum)yvc7vljw /7rnt:yh* .4 ssunlight 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 is diffraction NOT exhibit0od pn6 8 g0e:slec0qypb* +eyed?

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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 fzw vv. pz x/ywn4a7g*nu2(s4blue toward the zenith (overhead) than it does toward the horizon. This occurs beczwfp / 7vwuzy*.4s4vn 2ga(nxause

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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/cmi7x:i a u )owl,)za 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the wavelength of the light in the glass?ai:a))mxz io7lw /c ,u

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light has wavelength / j.g l9pjwa9ikg(8wq600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the frequency of the light ins (9 8wlg/gi9wjq.ka jpide 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.e6 vti-gpee* v l77pbb5bhl, 1ql:2xp It passes into glass, which has an index of refraction of 1.50. What is v2l:pe6 7evegl*,ip7b1ph xlq bt- 5b 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 vac+c6ecj3o/ hu wn 1ewt9jtke 1*uum is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the index of refraction of the liquid.

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm in air is found to travel a;y73 l65s. anpm:gpjfpzr 7 3xf-gbkzt $1.96 \times 10^8 \; m/s$ 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 isinvfj l :+d0;z 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 mmizy6 7hud qa4hx ,.u8i apart. Monochromatic light falls on these slits, and q4hi6i7 a8u xhu .y,zdproduces 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 onm9 lzqysf:pz ta.j:0 : a double-slit and the third order bright frintjmsz.zq:lyp09: fa :ge is 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 be5 i(fk ehjwi1it,a1+ptween 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-order 5f(1 heij+iait1p, wkand
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 expee8 p2d :2xdpu6mq:s oes,qem 1riment, the slit separation is 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate the slits. A scree6d emxe o2me u8 ,q:p1pd2sqs:n 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 n0c,*wteolj,ct 539)j ki yosapart. Monochromatic light of wavelength 634 nm fal *) lcekw,nc,0ojyt9 ti53josls on the slits. If there is 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 incident on a Young's doubl-k/ qbzecz12 foqts( 3e 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 fringe and the zeroth-ordef1czoze q qk/tb-(32s r 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 auq2qcbo d ,ti5vv137 x- aqju5.xl3a q 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 betwbuqqvq x-.x7qv2 , l51i3 j3o5tcaaudeen 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 lighw+b fec2) xtki 8+y9qk/m nr3ot (wavelength 480 nm) and red light (wavelength 670 nm) is incident on a thick piece of glassnx+rykt m q /c2f+ io)9be3w8k 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 angularkd5u we)h a u*l9y;6nmo. pjf+2av ax7 width of the central diffractio.65+ )hpuv 7kyaea*luwa; m9 of2 jxdnn 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 0.0 g5wy:b ui1,pa50 mm wide, is illuminated by light of 550 nm wavelength. What is the angular separation between the first two minima on either side awip u1y,: g5bof 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 singpul4 /e9 ge6jmjkm o+5le slit 0.75 mm wide. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction patge6e+/4 l9jp mju km5otern 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 fhyi7(p fz *b pezn.9r537ce fa slit 0.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m9* 3pfc(.rz5 y ibh7f enezp7f 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 ij*rlqxq4vo 73q b7,vds incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the position of the first order d*7,vlo dqjvr q43x7 qbark 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.)0 vh+gw78 tahr zimhkv4yn9;rxi 1 5g300 mm. An observing screen is placedrn+9v1z i ki0h7)rm;tyx 5gvh h8gwa 4 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 illuminat) xux,o r69pqpes a grating with 7000 lines per centimeter, its second order maxi6qx),x9pp uormum 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 centkmc05 g/xt//xi gg0hb ral maxim tg/0mcb0xh5/gk/gxi um and the 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 ruled wgn8u a krlb,87ith 50k8, n 8gl7raub,000 lines. 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 experimen7dn *e5 bb-fldt, light of 600 nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen. A second monochromatic source produces a third-order maximum 0.870 mm from the ce- enlb75 f*dbdntral 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 rul+-ie7ls om2jzynt ..z ed 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 2yzj. itne7- zols.m+ 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 spectr(f*lpz:wg.zg twm4 *z3sx i(ral hues by a grating. If the grating has 2000 lines per centimeter, at what angle wi wr(wzzx*lg pm: f.g tisz(4*3ll 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 grating. If the first-order maklkl *;2b;nmfximum occurs at b;k;kl*2nfm l$20.5^{\circ}$, 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 waveleoxor5(gmsxs1k/o g /8ngth 500 nm is incident normally on a grating. If the third-order maxi1 sxo/ okgx/os(r8g 5mmum 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 nm is incident normally on a gra,kp 9ft ll2wy2c uggu0 9iy+o-ting. If thfy9go+y-0ipg uk, luclt92 w2 e third-order maximum 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 lo91jqd du m3ql1ng is separated from another glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent ij l1 3dqmq9u1dnterference 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 thin 7o0r i-8w ;9xxkjxwxs bj ww8xkirx;0 n-9x7xoubble will ensure 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 the mwjrf,*7(+r gipw z3;; ws azwvinimum thickness of film that will give an interference when the lip wf wz(;*7vwj 3 ri,g+;arzwsght 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( ibgu m/-sdz8 = 1.30) on a glass lens (n = busgmi8/-( zd1.50) for wavelength 500 nm?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal polarizer is placed in a beam of unpolarized li(*9l k ct4vmv(d6dgcqght and the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam wd4 mgc9vkc (v*( dq6tlith 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 itk-f(rqz0m /zt s preferred 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 airwwgn) bj+nt8u v; 98cr strikes a flat piece of glass at an angle of gvt8nwn9jwburc)+8 ;$57.3^{\circ}$. 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 com 0gcv 4 lgw*xxv5z 0uq*+ki+zubination. The transmission axes of the polarizer and thegz*+ uw ixg5l00*qu cz4k+xvv 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( 2 hjlty/) +yxm.qyz*w- xtuz when its image reflected in calm water is completely polariz/- )qx2+(uytm .xwlytyzj*h zed?

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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 throu czo1d;qy.z* ogh a polarizer and then an analyzer. In this process, the intensity of the light transmitted is reduced to 10% of the intensity incident on the analyzer. What is tqcyz ;o1.zdo* he 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 reflecting oj.y tt5*).jd lkkoxi hyk;r3w++iau 4ff a piece of glass of index of re .ywu)+oiadj.ly+4k k jkih*5 x3r; ttfraction 1.48?

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