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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 princip4 8 yua:0iw8ity,ecgsle.
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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+ 1k y0t*rodiwt?

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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 ligh (ivi5s2a c 8mih5hh r q:2vcy2(k:efct 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 llr gzz a)p7*uvhu*,w +ight 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 mediu*vbk hx+ury1 +m 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 (wavelength = 590 nm), originally traveling in air,oh25re xf 1v*olvn-;b enters a piece of glass (index of bnv-h e5;vol x*r12ofrefraction 1.50), its frequency

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light (wavelength = 590 nm), originally travelpf r9cm+0mkp0 ing in air, enters a piece p0k0fm 9cpm+r 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 o(d 5ydlv)(jta(a2 smas it passes through a narrow slyld2svd() o a(t(ma5jit?

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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 buildinge8vs6 qtl sl;3g4jp )is, whereas light is not noticeably diffracted. Why is thi8slv i6j4pg )t se;3lqs?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What principle is responsow+p vk5as.fu: (wk 01lvq+auible for alternating light and dark bands when light passes through two or mor:5l +sf vawuakuq0vop1( k.w+e 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 ttzdks(5z7 *dc o be coherent 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 striki/csl q (yt/e,;3zl cfrng a screen are in phase with each / cyz/(scll q t,er;f3other?

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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 path:7maln/ rdha -s arriving at point P. If the maximum constructive interference is to occur dhal/ ram-:n7 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 differentv xu98jir+m2hx iulyc00i 0zk y .n41g paths arriving at point P. If the maximum destructive interference is to occur 4rz9ing 0y.u1vlcjih 0u8iky x +20mxat 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 bri ymzcw+x +4 g:klzbee+-a5-umght spot in a double-slit experimenck4:xul-e +w-z 5y+bzmg +mae t, 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 eaici c7sq t))8qg1wk: v;tw8side of the central bright spot in a double-slit experiment, ligh)8wvt ;qtqgea7skwcii:c18 )t 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 eitx 6q+/yvbauwbp- r;*1dg d7y tj4hy3qher side of the central bright spot in a double-slit w3bxjd+*dbr /1647yhqvytu aq - ;ygpexperiment, 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 separation between the sli 4;k ,xw8wkcdqts decreases, what happens to the distance between the interferenc4kx d ;wwq8k,ce 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 n; phw-6 p0jhrnq.n7werved that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima wh;nj-7pwnrn.6p0w q hhen 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 o*)v lb ccyp2 mb)7b.-mjn/ lvtravels 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 s;hd ,y.p+lhdm h0 qd7qlit of a Young's double slit experiment arrives at a point on q;.h hl0 q7d,p+d ymhdthe screen one-half 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 impos)ofv mhiz3syk0 / ) q2csp*j8pdg .3 *sdus4lxsible to obtain interference fringes in a double-slit experiment if the separation of )8gshus .syx*zqp/smf*d2 k di p o)vl3jc043the 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 pat kjw5)3 wujbd1tern using monochromatic light1bu 5)jdwkj w3 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 cbx7 h ra5r h3igl4tq(sm4x7;into different colorsc 4ghbxmt5hs4i q7r a( 3rl;x7 is

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle which allows a rainbow to fo-9lawj;qui .wos*bhcwo 2 v3/ rm 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 shor5 t5 vb 3k:lf4iwb.s j3b*bpaater 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 callewx (gz6o2+kkgd

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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 undergoe lkqqf.jt) :f0s the greatest refraction when passing from air to gq )f lj0:tqkf.lass?

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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 ruz1c6 *a)k curefraction when passing from air to glass?cu6cu 1)zkar *

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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 lighs a1d6*22f9vm ppmnyoj 5m e3 9ygfo7at is incident on a thick glass plate with parallel sides, at an angle bet2fa 6fvson 9mp*eyymo3d 2j 9a5m71pgween $0^{\circ}$ 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 fingeo-78ahijwfi+ rs, with a very small gap between them, and looks at the light source, she will se a+wjf- i7h8ioe

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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 e 5(uqwbpgyq) pt8er fx 407(djxperiment, if the width of the slit increases, what happens to the width ofb(r5p7ut 48efgpqwxdj0 )y q( the central maximum on a screen?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two diffraction gratings; one has i 0-5x zd3prgl4000 lines per cm and the other one haidxl-5z30g rps 6000 lines 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 g*uq;.n.vf te oratings with the same slit separation, the only difference being that one grating has 3 slits and the other 4 slits. If bothv.f o*uent .;q 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 v7g25 bn(4 brumbc wq2g 2olo/ 6nuu;tby 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 grm;b4 3+cpww ;2jpqrj ier,3waves can interfere constructively or destruc3mwrr3w j 2 ;bejq;igr4pp c+,tively, depending on their 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 boundary, therd2xc(m4na 7xy7d / bjne ix7b2 jdany4 dm /n7x(cs

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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, i)z5k lx+emk7i s reflected by a glass surface, )lekzim 7 k+x5there 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 much thh to; n5w2 zpvp3++hlninner than the wavelength lpv +n z23pwhn5toh+;of 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 magn 9,odu2 bv ory.l9dzh/esium 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 wavelengrbhv/y 9l,2dzou9 .doth? (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 3/ssgfxg 6 gg4hg0s v7z :k+kdfrom above with monochromatic red light. When viewed70df4g ksxgg3:kg 6 +gsshvz/ from above, concentric bands of red and 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 the fact that certain sunglasses can reduce gzw gx0m/s)lpd.b w++elap /lg sb.x 0+zw+de)mwre 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 7ke9 f*b hzd3qis 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 matero2pd 89xssnzd5giv6 ;fa -p1cial like a Polar-28;n9dpsf 5asvg d6p1izoc xoid 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 perpea7c++e9 lnl; w(v xik-v3zqncndicular to each other, what is the percentage of the in vlnc+z;v-aciexn l 3 (q7k9w+cident 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 sury s (mih l9*yul9el1i1face 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 is grexj, i1tgr7 jf:f,a t6batest 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 gwdj: 0.vcv; vexhibited?

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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 btk/:(gp h( s- zg(sasduvj u9/fiq-d3e more blue toward the zenith (overhead) than it does toward the horizon. This o -( 9:iu/pgjka(szsf/-s ugqdt3dh( vccurs because

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of light ($f = 5.0 \times 10^{14} \; Hz$) enters a piece of glass (n = 1.5). What is the frequency of the light while it is in the glass?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light has a wavelength of 600 nm in a vacuum. It passes in osd(7ua/r hgcw. jc9;to glass, which has an index of refraction of( /w7ccr9.;doasj hgu 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, whichih wonyl4, ;*u has an index of refraction of 1.50. What is the frequency of the l ,*wl4 unyo;ihight 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 i q za-siqp+9c3n a vacuum. It passes into glass, which has an index of refraction of 1.+qqa c93 ispz-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 ky . tjs2/4l3wv kls2bc87h wxtravel 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 in) d1spxps +v)4pc*a0) kz tqys found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the frequency of the light in the liquid.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 550 nm ixe9 6fg +hf.gq q-df1yn 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. Mh mrh7 :4ehad5m19okionochromatic light falls on these slits, and produces a fifth order interference fringdh97rk15o : ia4mhem he 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 b . fy dph -ofs4n(3v0e+r8yfr/mx/ wdsright fringe is seen at an angle vxors8dfyhe f3 yds .n/0-wm +p/(f r4of $6.5^{\circ}$. 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 if1v yoqetvtba,o t81c -:36 ithe separation between 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 vyfva1t tbco1, q-6 3:teo8iifirst-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 experimpvagb9p 8 1w,nent, the slit separation is 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate the slits. A screen is plp awb p8ngv,91aced 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 l5x qyeh)va -aha2;7gmight of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are ad h;gaa5a 27xyhv)-m qejacent 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 i kkef) ,8n/lpnncident on a Young's double slit setup that has a slit separation of 30.0 mm. The resultant brig ,keflnnp)/ 8kht 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-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 zubw4x;( qr3b700 nm, strikes a plain piece of glass at an angle of incidence of 60e. The ;b (wzbq3rx4u 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 bceqq+r8pp i4 z8.ns- 480 nm) and red light (wavelength 670 nm) is incident on a thic+n4.qz8pc pqr8 ie bs-k 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. Wha5gqu spo+ +s8mt is the angular width of the central di s+o g5up8mq+sffraction 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 illuminated by light o4n ei.b t)u;w7dj e2khf 550 nm wavelength. What is the angular separation between the first two minima on ed24; h.ujit)w n7eebkither 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 68eyq(smg3fh ;: 6nsb :(nm1gxr7 nm is incident on a single slit 0.75 mm wide. At what distance from the slit should a screen be plac:n6m3 n(q sh(1;be x:fyrs ggmed 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.dpek 3k 8ky sl2yonx;0)qbf, (/lnc6yy7 o *tg20 mm wide and the diffraction lnfgce y63k8yx) ,s b*qd(;y7pt /ol0ony2kkpattern is produced on a screen that is 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 observin a2d4m5l rrgcf,qo ,r:sw nv57g sco,gfwc5s, 72r4d lr5 vqa:rm nreen is placed 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 wisarlz9 q epsq++tc70 *dth 0.300 mm. An observing screen cs a* qtz+q9+s0e7rlpis placed 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 ( zezay:lub 4)a grating with 7000 lines per centimeter, its second order maximum zy l4ae()buz: 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 central c,3ne2/si.y9o/ rub yk.f sr0i jpt /smaximum and the fourth on 9 /i/s ijs/3ofe2yr u,0rb.cy.ptskrder 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 wiup3 r 1bn wyjeit5 m-o,u//tj9de and ruled with 50,000 lines. The second-order maximupj ru3y w /j9e/ubn1m-ttio5, m 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 a first-o+u (8vvv shwp: -0p8iu1jffn hrder maximum(0fwpvv8h- n: ujvs+fu1 ip8h 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 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 pe p9ua8 hw0c sjt6s11bbr 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 be tchu01s jw8ap619 bbsam 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 grating. If tpa .lbc fll,45he grating has 2000 lines per centimeter, at what angle will red light (640. p5fbll,a l4c 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. dg,nnsw .w12lv(aqul djlyo/2xw ( +4If the first-order maximum occurs atdgn,.(w jn +4lxsd( wyvl1w/ loua 2q2 $20.5^{\circ}$, what is the grating constant (the distance between the slits)?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Monochromatic light of wavelength 500 nm is incident normally on a grating. I(-ga qy2 4 ontcerg42xf the third-order maximum of the diffraction pattern is observed at4t 2ogyn(crg2xq-a4e $32.0^{\circ}$, 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 tietw 0qc; m88*x dpv9 x2bzf/on a grating. If the third ;xt ci208vmbxwtd/8f*9 qz ep-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 long is separated from anothe *t-w mm+spv*4 yqoe/er glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are *-qm 4+ wyovp/mtes*ethe 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 ; bowl2 snmag: 3eu()xminimum thickness of this bubble will ensure maximum reflectance of normxaesunomb 3 :(;w2lg)ally 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 dik3mqif.60 k 1ai1 quminimum thickness of film that will give an interference when the lightfd.0 m16kqq1iiu aki3 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 nonreflectia2nb. d3ubxk:zh7s1 lng film coating (n = 1.30) on a glass lens (n = 1.50) for wavelength 2 lus7k3an :xbz.d1hb 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 d pe:e+21r pixof unpolarized light and the intensity of the transmitted light is 1. A second ideal polarizer is placx1 drep:i2 pe+ed 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 prefe i1e kgwrjfnv36.0w(md e.(morred direction rotated $30^{\circ}$ to the vertical) is placed in a beam of unpolarized light of intensity 1. After passing through the polarizer, the beam's intensity is

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of unpolarized light in air strikes a flat piece of glass at an anur 5 4ehs:ri69ntpw r8+uu0utgle of w0+ei8nu5tr r sr69: 4 uupuht$57.3^{\circ}$. 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 pol(-kw;3cte(m ip aagw ds51n-karizer-analyzer combination. The transmission axm; gt5sk-1an(eci wawdpk- 3(es 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 Moo9go0m4r rml;lg5b le,n when its image reflected in calm water is completell; 54mor,mre0 ggb ll9y 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 tbrk * u/2dvs9 lsj:gd.hrough 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 the angle vlj: r. dd9 us/2gb*ksbetween 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 anglq 9bx82mt,va n cf z1cx,s5to es/)em7e for light traveling in vacuum and reflecting off a piece of glass of index of refracts, oxee,v/8fxq m71ztb29 atc)s5cmnion 1.48?

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