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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 principlei) fcv yw,,urh7b/d86s l+9 ;ldxgwdr.
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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 f0n,3ufghkk 5y. la3c 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 lig:a- .io /kcqntht 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 lighyre5y3q j+6nwt 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 differenu(r;b -ag5wz nwo 3.pzt 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 (wave 4 h;eupaa0hff+rkil*x-46;fczj6 kilength = 590 nm), originally traveling in air, enters a piece of glass (index of refracphlh 6r4k *if; az-0ceaj46f+;u kfixtion 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 (wzy29 2o olc)igavelength = 590 nm), originally traveling in air, enters a pil)yogzc 22o i9ece 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 i, vikf*sh.s :j.v ah;rt passes through a narrow slsv vfrks.hj .;*ai ,h:it?

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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 buildings, whu ,ztz/wdja up-zq d 9n57/*tmereas light is not noticeably dtdu, u mnw9a5pz*/z qz7/j-tdiffracted. 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 bands wh tnonii/cr z0r27d; d)en light passes throughi)on0d; 7drr2i tc/nz 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 coherent if u(3x+5exajoq k69naq.s 8ax qthey

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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 0-j-)c+g wax uc-)tcu xep..j4 dkkfathat two light rays striking a screen are in phase with each othegjukf +w4 xu.ak )c )pc ax0ce-tjd.--r?

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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 diffe ) qsbyy2k+wj*rent paths arriving at point P. If the maximum constructive inte2k yy qjbs)w*+rference 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 dic8zuu3qr 1qss* h6 dy)fferent paths arriving at point P. If the maximum destructive interference is to occur at point P, the sd u6 hz)qsy3quc1 8*rtwo 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 ,en+ya745yu5jr rzusside of the central bright spot in a double-slit experiment, light from each opening arrivuyze+rs7 4jnay 55 u,res

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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 then/ m ,49jfxvwe central bright spot in a double-slit experiment, v9/ ,fejxmnw4light 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 bjoj);fhwkk 1i4 q,lg1 w83 daexperiment,;whqkfjd g3kb ja 84w11oi) ,l 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 exper pm*:g)fm;r)hr mi y a)6x/yxjiment, if the separation between the slits decreases, what happens to the distance between the interference fringes )*y mhmxrj)rixm; )fyag6:p/ ?

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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 observed that the distance betwe* 5t(.hxd( fwoo45a j4etnirxen adjacent maxima on a remote scrho 5xax5tjo(f wie.(rdt* 4 n4een 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 ;jekha* 8n p((9; uvzze(eje wtravels 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*mnez/ hx m8*z arrives at a point on the screen one-half wmez mx/z**hn8avelength 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 l)qjk l k+,j7k4 gwwcou4llk 9g0*f-nfringes in a double-slit experiment if the separation of the slits is less than the k, - 4kgwlc)lofl 9+w0klg4 k*qnj 7ujwavelength 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 interferenceipkmx 7udb k r79s-7)e pattern using monochromatipx7se mbdir7k-u7)k 9c 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 prisis-- kq d48owq,pwu .pm separates white light into different colw4 qwq, pduips8o.k-- 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 allows a rainbu0 u/*gl tjh3tow 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 shortw5 nkagx5sz3f rgf o80n3)k v1er 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 nm is claypue 4+6sl+-y( tr malled

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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 undergosx2t joa:g pys3873 fjes the greatest refraction when passing from air to gla837p23xyj: ogsstfj ass?

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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 8h2rbpyv yy+cl 9wg03 from air to glas9p+3wvlyby r ycgh8 02s?

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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 zle *pv.r/bi. sides, at an angle bev.e pb*/z li.rtween $0^{\circ}$ and $90^{\circ}$ with the normal. Which color emerges from the other side first?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person gazes at a very distant light source. If she now holds up two fingerszkne bid,1q-+ w:f sn-, with a very small gap between th- sezqf1-di:,n+w k nbem, 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 expebz+r pf1gi8-kriment, if the width of the slit increases, what happens to the width of the centz+i8g1f-b prk ral 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 gm*2(j 5xza r +v*u2pfce rki-mratings; one has 4000 lines per cm and the other one has 6000 lineir2ap- mczrvj*fe *(2k 5xu+ms per 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 wmq9y ;pap+ i,llo.lgqp (f6 9uith the same slit separation, the only difference being that one grating has 3 slits and the other 4 slits. If both gratings are 9ll; f+am 6 , y9pq.lu(pqogipilluminated 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 arev;iha -hnu p+8 caused 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 monochromatic light n8 5lol0pls14lxvn* uwaves can interfere constructively or destructively, depending on their phase difference. One consequence of this phenomv n4lx1ll*8l5s0u pnoenon 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 boundaryjg* -atwdx2 w; x89r cowc(:jg, there xjdjgw-* 8awcw( gc:;2 9troxis

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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 trju9 u p5nkh)o+p9m+..c5ls;goi laziaveling in air, is reflected by a glass surface, thereinlauc9o lp5zk9 s+ )u.ompj;h.g i5+ 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 vie.e1hs9if z4drhg v1radsug2.0h3.ej;dm r1 c wed in white light. As the film becomes very much thinner than the wavelength of1hr.zh1m.serc.u2j 90 s1h4i;dgdgv3ae rd f 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 thew(*ga71; j( w *xz y7vwqsavhi+rrvh+ minimum thickness of magnesium fluoride coating that must be applied to a glass lens to make it non-reflecting for that q x7 +yzis*w (hr;1v+ajv*wv 7garwh (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 f7xny3a :;9t84w((py mfl iozt wykb/ klat glass plate and illuminated from above with monochromatic red light. When viewed from above, concentric bands of red andt (a 79ml np4;ofwb:8ytkkiyzw3y ( x/ dark are observed. What does 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 thh, e4bc9fd;adqqy3 2ue fact that certain sunglasses can reduce glare from reflected s;qcbydaf2h349 ,de uq urfaces?

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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* co(y*fxr tj, polarization is defined as

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the process to obtain polarized light in a dichroic material like a Polaqwdx2ut*gek01kj44a n*)cy (cdpm, hf(4 kqaroid fu(c qk*tj2d, dcag4hxk4w4) *apye0n q1 k(mfilm?

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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 arem oyyw/uas+ -- perpendicular to each other, what is the percentage of the incident light which will paswyo-/ uymsa-+s 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 surfaj95 ;ivv,v:e 9wiwnger 4*mftn ,+vqtce of a lake

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The polarization of sunlight /lkjsy ,;9ld tis 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 NO (gg:ah22q-c7/oy. epeyiz7h/niahyT exhibited?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  On a clear day, the sky appears to be more blue toward the zenit/adv7fp4 pka0 y4sk 0gh (overhead) than it does toward the horizonvs4 ypk g7k/p0afa d04. 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 pg4o hu0;ps)b 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is theps 0o;gp 4b)hu 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 vplthd ),hj8;)9a emcz acuum. It passes into glass, which has an indjda)z;h9hl p,e)m8c tex of refraction of 1.50. What is the frequency of the 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 nm16fz*37asaejz-wd c++jecp6jxg o : m in a vacuum. It passes into glass, which has an index of refraction of 1.1+xcdszfec+zjj-apmj*37ge:w a66o 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 k ibu+t s)top4 6+. a/fejzlag:t8l:avacuum 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 at8 iu/z vq)uqd, $1.96 \times 10^8 \; m/s$ 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 iau.h): f9wwic m w3qtlg*jr)8s 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. c-;b1 7ziktu+cns5u h Monochromatic light falls on these slits, and produces a fifth order interference fringe at an angle of 1uc ;7- kt5+iscunbhz $32.3^{\circ}$. 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 d x /ycawebx(i x .yo45i5p::ha double-slit and the third order bright fringe is seen atx i xap(5e::wido.4c5/ b hyyx 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 slitspx+d/4/+nh +2j7xubmf qeegh is 0.050 mm and the distance from the sl7 +e+e2gnjufxmx+dq/ h4p h b/its 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 experimx:lrqpio9f3s d. h/)bent, 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 rlhopx i/3: f9d .q)sbwill 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 0.050iza l ,6*sux7fm:qbu ia1d8 j) mm apart. Monochromatic light of wavelength 634 nm falls on the slits. u u,bld*s a)8aiz qj 61xmi:f7 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 double slit setup that hasa8o, d,ruu8wa jy/ 3de4zr/ki a slit separation of 30.0 mm. The resultant bright fringe separation is 2.15 cyjw a,i,u3/d/k8uo4 dr8 aerzm on a screen 1.20 m from the double slit. What is the separation between the third-order bright fringe and the zeroth-order bright fringe?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel light beam containing two wavelengths, 48e*nn2e y2mp )s0 nm and 700 nm, strikes a plain piece of glass at an angle of incidence of 60e. The index of refr2 )ne psn2yme*action 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 nm) and red light (wavel 3kd7fcjr k(8jength 670 jf37( j 8rdckknm) 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 axbhw9k hh.imid(8 :+vngular width of the central .:hiv h(dk x9w+ 8mhbidiffraction 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,vi)))xsznt s 5 8uqww.050 mm wide, is illuminated by light of 550 nm wavelength. What is ,nz tsuqx)wvs iw8)) 5the 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 slit 0.75 mm wide. At whgk 5pn7:1qd.nwdb x4pat distance from the slit should a screen be pngqn:bp41 xdd 7p 5.kwlaced 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 inciulm ex)1ux (b/q-g q93mkkp 3jdent on a slit 0.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m from the slit. What is the width of the ceq-)l(kp3913 jxubmu kx q/mgentral 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 nmwx 10r edk j cb;-:hm3hko2sz, is 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 dark f2o:rjs3 kw;mehz,h b1ck -xd0 ringe 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(m ) cks1 +r9lu1pbjb7m6i fdt of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the um1 i+frdts6 cmjp79kb( ) 1blwidth 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 centimeter, i1n7nb5 q;pfld ts second order maximum is at n 7lp db1fq;5n$62.4^{\circ}$. 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 hasdi3)a9w3dq -dhdi+ax,f l z+w 5000 lines per cm. The angle between the central maximum and the fourth order maxi,zwf3+)iwqd-aihx ld3d + ad9 mum 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 ,hf xl4 hk5xc,zhnax m1)wr,s9n9 h 7sgrating that is 75 mm wide and ruled with 50,000 lines. The second-order maximum is seen at xf,h x ,nkc7s) h41wzm9 lh5r ,9shanx$32.5^{\circ}$. 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 wavel+ox nd3w:5scvxcv8 4fb v8f*aength produces a first-order maximum 0.350 mm from the central maximum f3 :wfccxo8 dbs*v4nxvv8 a5 +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 centimetho *02c w8svgmer 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 be8ovgc0h2wsm * am 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 ;j .rw3 d f jr93yt3luih8ind+a grating. If the grating has 2000 lines per centimeter, at wd+irhif.;83 3 j u3 dwtrljn9yhat angle will red light (640 nm) appear in the first order?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A He-Ne laser (632.8 nm) is used to calibrate a grating. If the firi*d b.x+o+j2d*baz u xst-order maximu bj *ub.2dx x*+dz+aiom occurs 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 in*gg5o1ikw czjz+,c bg l3) 9 xc;v1ttxcident normally on a grating. If the third-order max+c z 9b)3o,z g v wttgxc1g5;ckij1x*limum 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 vm+;lg *qxmihei blf w:fd1j;qyc81 p: :l u83is incident normally on a grating. If the third-order maximum of the diffraction pattern g: li*l8wbum1xfc fhmji;;8+ deq3p vyl::1 qis 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 anot1vmg 5/ tbz /v7opnf22iyhx /hher glass plate at one end by a strand of someone's hair (diameter 0.0h7 2 bz2fn yv5/xhtimp/v1/g o10 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 refra ni7ld h2z7iv,ction of 1.33. What minimum thickness of this bubble will ensure maximum reflectance of normally incident 530 nm wavelength lh2nl i,v7di7z ight?

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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 = 1.33o i,.btz4apl 3). What is the minimum thickness of film that will give an interference when the lighibpot l z3a.4,t 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 thickn2u0s kehm-zw 5k9vq. vess of a nonreflecting film coating (n = 1.30) on a glass lens (n = 1.50) for wavelength 5kew0. zhs-vm v 9ku2q500 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 un.e7yxz:bq 9qir1 0k xmpolarized light and the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with its referred d 1rkqzm:x.iex 0 7yb9qirection 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 prbzx o15 k/i nyy-*v(qweferred 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 flatkq-d asc.el,wn/ 9o f* piece of glass at an angle of kwo * d.9q-nsce/a,lf $57.3^{\circ}$. 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. The tr4g z8tn sp gqrj3n;+i)a2cu k3ansmission axes of the polarizer a ajkn;8ip g z3nr3s4qg )+2cutnd 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 itbno: a*kv;. cqs image reflected in calm water is completely polc :v.nbq;a* okarized?

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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 g.nbh; vr:ioy8 r2uiu*0n 7mvthrough a polarizer and then an analyzer. In this process, the intensity of the light transmitted is m u:v ry*hiv27. inor8bu g;n0reduced 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 )+lp s/+ /ic2fmylqg3qc0p jgin vacuum and reflecting off a pieqg2 l0mc3i) +y/lcspj+ fgp q/ce of glass of index of refraction 1.48?

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