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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: 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 principlci+ozdm6d1 sv0d+f d 945roqie.
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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 wp zho)c;k3f3is a false statement?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The wave theory of light is attribut/okbt;sw 7y lzj(mm63qunu4 )ed 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 attrib81*-hevb6xbx cjra qr k)d:s2uted 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 intbmc.e: z.;n31q8+oe q r zscony.ig i6pm4ds0o a medium of different optical density,

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a beam of light (wavelength = 590 nm), originallyolylz)sg m 3t6;rx41p traveling in air, enters a piece of glass (index of refraction 1) ;3 rslg1ltm4xp6 zyo.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), originalluue)6vuwb ;qx 59yju0y traveling in air, enters a pivu 56qu 9buju;wexy)0ece 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 bxh0+p5 s;qa wgq77 gvx:1roe passes through a narrow sl s7b5 gox0 q7vq:+x1h;ewgr apit?

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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, w0in z i*h2( 4wfmx8vqhhereas light is not noticeably diffracted. Why is thi*mz4 (q h2n08fhviwixs?

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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 an2dw ;yj8 plvh0d dark bands when light passes through two or more narro8w0d jp ;v2lyhw 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 ar8y0n.tti4qtkz-x jdcp09b xv3 y8 u*o e said to 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 striking a scrlyp-cni7 xyll:3 4pa+een are in phase wityai74:l- l lcxpn 3y+ph 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 light travel different paths arriving at point P. If the fwp:b:68+i) gyjxnv8 9yl o0ovw /edpmaximum constructive interference is t9ygl bnp 0vw d8/vx o+o8p)wyf6:e:i jo 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 differentf bw67d8:dt 4lsvmx1 x paths arriving at point P. If the maximum destructive interference is to occur at point P, the :x6dds1m vt4fxbl87 wtwo 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 eithe ty n.d,:z+yz m0e7psnr side of the central bright spot in a double-slit experi,:yten+d y.mn0p7zs zment, 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 the14c;8 kgjcw xh central bright spot in a double-slit excj;48xg1wkh cperiment, light from each opening arrives

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the second maxima rhparu-. l 51 9zxuh;ion either side of the central bright spot in a double-slit experimenu-hi l a1p59ru.hrz ;xt, 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 l ) cy/hbi5pt*/qb1lryy )r3kthe slits decreases, what happens to the distance between the interfe1*))bcihl 5bt ry r3/ly/yq kprence 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 observed tm e.m0 k.b sudxm2,peuoqs319hat the distance between adjacent maxima oneo 9e23m.u0um1k ,dqbssx.mp a remote screen is 1.0 cm. What happens to the distance between adjacent maxima when the slit separation is cut in half?

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One beam of coherent light travels papd i yuw)iph0+-a1x/bc * w5vlth $P_1$ 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*7jox+pz 433gpaue dbu2 *ccm experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, which is observed atg3 z*u4co+x * p37duc jbaep2m 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 ob y)uh4yu-uc0,k5gculdp r .6b tain interference fringes in a double-slit experiment if the separation u ubpr d6u5k.),gycu- 04hlycof the slits is less than the wavelength of the light used?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The separation between adjacent maxima in a double-slit interggce 6cnr onz 0:1uo)7(s3 mptference pattern using monochromatic nzcognm)uct0g13(sp7: e6 or 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 8p8t8 uv91*qqa jbfah2sbnr * light into different color b8q8 vub1tas pjra8*f9 2*nhqs 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 rainbowb6ub0k1ka5 iwvo+n :u 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 slighc2 in1rd kiqr la0mw8k,5/g*o6- .yfpkgn w6ktly 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 wavelength6l rf(dja5gy6 slightly longer than 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 greatt qk)rgz )uiap(wbvlud*(( 3: est refraction when passing from air to wrgtu:( vbzi)p l(dkq)*ua( 3glass?

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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 refractionxawh6j x0n )am83l6go when passing from air to glasw)8xm3gaajn6 o xl6 0hs?

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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 parallell, a1uoj +t ejal.*5zc sides, at an angl .l ct,ejzl*j51+o uaae 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 very distant light source. If 98kq7 vxjnc6r she now holds up two fingers, with a very small gap between them, and looks at t96x7vqcrj kn 8he 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,eyn+ypuz8 8oaz 6h(6htg)1w i if the width of the slit increases, what h6pe( 1z 6n)ih guo8h8ytwya+zappens to the width of 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 4000 lines per cm and the (8o5)+livj v4ilygel q /y)ayother one has 6000 lines per cm. Make a statement comparing the dispelo)vgiay8y ( yljv5 l) 4q/+iersion of the two gratings.

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two diffraction gratings with the same slit separation, the only ++p gnus y9+mfdifference being that one grating has 3 slits and the other 4 slits. If both grats gu nm9+y++pfings 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 cauch /p sm5zq o81oy12zfsed 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 waves can interfe j; rph722 vd-ftm dwpn5 i,ufpb;g)+gre constructively or destructively, depending on their phase differeff;rv-j+ gn,p) td5b;u 2pi 2 gdhw7mpnce. 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 an3yve1o2t rls n2 u-ua9 air boundary, therel1u3-eotv2s9 yr2un a 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 traveling in air-r ,;a*yc3vr 9l7knztbt(z if , is reflected by a glass surface, thereyr*tl9fbz,;a73v-inc (z rkt 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. ozq7vkv98 ;qp As the film becomes very much thinner than the wavelength of blue lig v;8pzqv9 o7qkht, 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 in0- x ph xecmb ://+(;uzahwld0k/ts wv magnesium fluoride, what is the minimum thickness of magnesium fluoride coating that must be applied to a glass lens to make it non-refl- lb u0d at/ wmxcs(h;v+p:w0zx/he/ kecting 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 oh)6prjya;j et6 *km3vn a flat glass plate and illuminated from above with monochromatic red light. When viewed from abo* kvjt)h y6; 3prjm6eave, 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 certainvaqgx3m ./tvrm +y(j* sunglasses can reduce glare from reflected sur (/+tg3*mv vym.qaxrj faces?

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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 definedcq*hqxy7 +t +ar dq6 v)r9si7l 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 polarizesz tnwvq n1:jp* +hu w9a+78zwd light in a dichroic material like a Polaroi7nt+*jz+ww :1vn9p hawu8 qs zd 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 egqv/ mwaav6 wy3)hxfy9./izi (y6j8lach other, what is the percentage of the incident lightvai9.jqy(x3 / f g/6 vzmwwa6yli) 8yh 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 surface of aor9;alv* /qe 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 grf s fnx5i4*x(peatest 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 l /c5ima6-tbz diffraction NOT exhibited?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  On a clear day, the sky appears to be more blue towardgfgb 1 7 l2+hvjn-l0en the zenith (overhead) than it does toward the horizon. This occurs because 2enlng lfv+7 0bhjg1-

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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. I:cmcbd svpw f*y( ;d6t w,sh*0t passes into glass, which has an index of refraction of 1.50. What is the wavelen6sw v:pc y;d(0hdm*s* b,twcf gth 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 intonkl 4)yrxt* i5: )4b( yxnqwfx glass, which has an index of refraction of 1.50. Whatb: yr(y5i fkx *xnx4 wq))l4tn 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 nm in a vacuum. It pas2ewp50wxlm 2zses into glass, which has an index of refraction of 1.5zxewl250m p w20. 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 .; hv6jt eyfp7d12a wffound 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 foudme(0mo nu +3lnd 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 550w,x-ppdg8 hv. nm in air is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the wavelength of the light in the liquid.

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin slits are 6.00 mm apart. Monochromatic light falls on these slits, an,t(+pj 6 c0qq(pfjkmzd produces a fifth order interfemqpqj6 + (zctj,k0p f(rence 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 ci,aec1 nb* b54u4flc falls on a double-slit and the third order bright fringe isfac1nc, eiu54bc4b* l 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 ho g1gfu 88+nlbetween the two slits is 0.050 mm and the distance from the slits to a ognh u8+ 1lg8fscreen is 2.5 m, find the spacing between the first-order and
second-order bright fringes for light with wavelength of 600 nm.

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a double-slit experiment, the slit separation is 2.0 mm, and two wavelenfbmfo.q(u-j8beq *ri8m2 g ,ogths, 750 nm and 900 nm, illuminate the slits. A screen is placed 2.0 m from the slits. At what distance from themo, 8i f8(j*. q2qbufgemo-br central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin slits are 0.050 mm apart. Monochromatic light of wavel/cbewxzf8te z/ b34 i:ength 634 nm falls on the s/b4:38z exciet/ w zbflits. 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 o3;syio;jg dr+c* .eu+sjn6 j double slit setup that has a slit separation of 30.0 mm. The resultant bright fringe separation is 2.15 cm on a screen 1.20 m from the double slit. What is the separation between the 6 c; je+r3onig;ydj+jsus* o.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 n2pol (/qgz)xk5p) cfum and 700 nm, strikes a 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. 2(/flx kp )cp)qguoz 5Determine 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 (wi -,w6kj8hx4 ovka3aq avelength 480 nm) and red light (wavelength 670 nm) is incident on a thick piece of glax6 -kjkhq4, viaa wo83ss 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 s,wd j8biae* *ip4dl t/ingle slit of width 0.20 mm. What is the angular width of the central diffrdwjp * *ti/8bi 4ae,dlaction 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 ligo+hff)x 1 7xespsi s 156qe)7xsd- ftcht of 550 nm wavelength. What is the angular separation between the first two mip si6x )e7 c-1+5s)x et1dfshfo7xsqf nima 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 6y a-m1eara*(v87 nm is incident on a single slit 0.75 mm wide. At what distance from the slit should a screen be placed if the second dark fringe in the difve-*1a amar(yfraction 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 the5-ay5hgp(t(hkcexgk0fv9 xt*jpc42 diffraction pattern is produced on a screen tt c( kc - hfp5k04hg*5egxtx (pj2vay9hat 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 s3,.,agy9ztlose2 ogm ( d; aivlit of width 0.300 mm. An observing screen is placed 2.00 m from thi, 3 y 9;2m.vd,tslo(goezagae 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 0oa2s0v) y u/8wxzil hwjqi h) 78dkb(on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. kbhxh 2ao )jdvy8 lww /us i0)8iq70(z 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 centimeter, its secoura o+5 zb+4bdq)* sdr+iu/n jnd order maximum i+)jruu5iq+ sr* badnb / z4od+s 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 anglt )x10et e+j7nezv7ewe between the central maximum7tz 7n0jtv)ew+x 1ee e 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 am l/pgja6u4mi -1hes .nd ruled with 50,0h1a/e6 .-sglpi u4m mj00 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 experiment, lwld2n q3;y, auwy()2occquw e6f-h ,tight 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 central maximum whenw q3yy;lnwcqtcuu)af6-ho, 22w,d (e it passes through the same diffraction grating. What is the wavelength of the light from the second source?

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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A diffraction grating has 6000 lines per centimeter ruled on it.69dxw hqf -bab8 y,bme893 kak What is the angular separation between the second and the third orders on the same side of the central order when the gratinxqay,83bakmd9fbk-9w b 8 eh6 g is illuminated with a beam of light of wavelength 550 nm?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  White light is spread out into spectral hues by sjivi1 kh f95w6h+v5c/w k;tsa grating. If the grating has 2000 lines per centimeter, at what angle will j/ 51+wh6f9skvw i ;hk5visctred 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-ola9m(d0a x6 xcrder maximum occurs a9(amxdx6ca l0 t $20.5^{\circ}$, 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 normabk2cjljh x42/ hb 2q.dlly on a grating. If the third-order maximum of the diffraction pattern is observed 2lbxkjh.2dc /jbq2 4hat $32.0^{\circ}$, 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 50ct6,ou lpcnvu7 00 dlxi(nfk* 6, dh.t0 nm is incident normally on a grating. If the third-order maximum of the diffractx0n vtoc (,7itl.ln 6c fh,d0*kp 6uudion 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 lob0jm/8j8 zxmd t6zv v8ng is separated from another glass plate at one end by a strand of8 v688jzm 0/vdt mxzjb someone's hair (diameter 0.010 mm). How far apart are the adjacent interference bands when viewed with light of wavelength 600 nm?

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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A soap bubble has an index of refraction of 1.33. What minimum w+ltbrn /mf l18+jt1sthickness of this bubble will ensure maximum reflectance of normally incidewf1 rltmnl1 jb+/s +t8nt 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 soap69-uicr;k u- hw9 pf: ncxuko6orb;: m film ( n = 1.33). What is the minimum thickness of film that will give an interf-9:ru;wfm uuh rx6:ik9;cb op6 o-nkc erence 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)t h7 bn2ra23in on a glass lens (n = 1.50) for wavelength 500 322 h7 rniatnbnm?

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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 of8)i jxk1lqn dp76lbub-h0y 2w unpolarized light and the intensity of the tran b867n) lyw d20i-bklqhupx1j smitted light is 1. A second ideal polarizer is placed 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 itkr u0 s)w rld,1ys9wj+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 air strikes a flat piece of 6r)cshn8 ,npoglass at an angle of nn 8 orcs6p)h,$57.3^{\circ}$. 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 chb4o18t npz: j9q5n ytransmission axes of the polarizer and c: 14tnq9b 5hpy jzn8othe 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 , d),y gmpgq8dp;3kuq6.ij wnMoon when its image reflected in calm water is completely polari,j6pui ;qkpw3mddqg. 8 ,y)gn 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 through a polarizer and then an analyzer. In this proc mj9a wlzi76jqcx +9s6ess, the intensity of the light transmitted is reduced to 10% of the intensity incident on the analyzer. What is the angle between the axes of the polarizer and the c9j iw9 lq x7mz6a+6sjanalyzer?

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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 refqwc l vps6j)qay+n lm3b;5( .nlecting off a piece of glass of index of ref+wqjpl()a5y;nl . q 6csbmv3nraction 1.48?

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