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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 principle.m4*bv 0b4b cspk t-ba3
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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 statemeann,y.t 5 odd:s0uq/,b gjb 6etik:t(nt?

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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 attributs*l3kon g4 ll/x0tuc. 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 fvt 0f21yep8sqt: pi u lv,4*sis 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 different r op/g-4 hgjm na88zl6optical 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 (wavelef 6 c,wqsl*y*+7wpbu4;r49m u 1oi n0g spotbcngth = 590 nm), originally traveling in air, enters a piece of glass (index of rucr*4n1o9sp,f6 tp bswb w;g lqmo*y04c+7iu efraction 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),rl,lm1zs v)9ij6ktx . originally traveling in air, enters a piece of glass (index of refraction 1.50),st6,j 9 i. vlm1rzl)kx 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 thros +(f8 ,4r9af ude5ezx:ul vlzugh a narrow slitfus 8x(4,l+ da zfue5le9vzr:?

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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 e ahd- xj-v)- 9kvra9uas buildings, whereas light is not noticeably diffracted. dkax)-ur h-v e9a-v9jWhy 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 alternaf5t 9)af oamaxq1j6r9ting light and dark bands when light passes tha51)r96mfj aof axqt9rough 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+,;d kzi436gxwko hro6k0ob g1 gq51. vpghj g 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 screen are in phasu;e f3,t. -j/frp2 wusqrdcjbq:s+:t e with eac-dtcs 3::,jrbt/ur f+jef2w;sqq p. uh 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 trav* rujt)faq3y,el different paths arriving at point P. If the maxiyq )a ,*ujfrt3mum 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 aa3om dh5/ u8jit point P. If the maximum destructive interference ao5i8d/mhju 3is 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 either side of the central bright spot in a double9e0qpxmq;5isd,xwne v hka8 )0x88 hh-slit experiment, lighhi 8mv e0;9ax0x nex qw8q8kh5dp ,h)st from each opening arrives

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At the first minima on either side of the central bright spot in a dou/jgmz 8cty)n)3aso;dble-slit experiment, ligj;t/ ncodamz3g )8)ysht 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 eithxuf(+iv0qg pg q/g5 ,ber side of the central bright spot in a double-slit experiment, light5/, g(gx fp0ibv+q gqu 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,w1l ko-yo8s9yq5n pr0xk ,f9v if the separation between the slits decreases, whatfos8rkqp vk, 5 xyo-0w9n 1ly9 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 experiment, it is ovv99ucwn. , mibserved that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the d9.9v,nwmciu vistance 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 trav5 6 v/g7oatxr. b9ovtmels 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 slitx8;q :d0j yy+vzu4pnh experiment arrives at a point on the screen oh n4 dpux+:q;0y8 jyvzne-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 impossible to obtain interference fringes ir:h4-hoh zpv )9k 9xakn a double-slit experiment if 9oxavk4:h9hphr k-z) the separation of 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 i72dmld kj7t r0ly+z+xx,j/u z n a double-slit interference pattern using monochromatic ljk x27x+ 7+j,ud/y0rzlztmd 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 ligh2 -ceck-f ns6i jmc.qe/zm1 +lt into different colors-e6kcc2/+1enfm zc-ml ji s. q 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 for2r74hp /r zri8xsgy b)m 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 shorter than 400 nm is caleaewgwt(uyf f h 950 oj:nl *9;p:7gcpled

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light with wavelength -*x/hq,r f5 qhgwvy5pslightly 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 unded3ixtb 09 e3c ;s8r-.ytqpjb grgoes the greatest refraction when passing from air to glass ydb3qxgbc sjr.t8 p0 t;-9e3i?

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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 oq+dx/lg-y0 r smallest refraction when passing from air to gldgyqxr/ lo0 -+ass?

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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 i+ 1la q eyhncx/7(9q-ts:xixdncident on a thick glass plate with parallel sides, at9h 7xtqc:sd/y(ex1x-iq n +la 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 very distant light source. Iyhf5 rhi y4mk;:8p ag+f she now holds up two fingers, with a very small gap between them, and looks at the light source, shpr :ahkhgy8i y;f5 m+4e 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 diffrax6 kpwx6jkpya 2h2) k:p(s*lkction experiment, if the width of the slit increases, what happens to the width of the central*y6 2)khl2kpjw( sp x6p:kak x 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; jfra p(q a* j,y+t0xqoj138kl one has 4000 lines per cm and the other one has 6000 lines per cm. Make a statemylf at,*pjx3a8r0qj j +(q ok1ent 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 with the same slit separation, the only difo;h99l*ry k0tf cz 3 jb.vn/wyference being that one grating has 3 slits and the other ;hy/ y. co90 l3b9wvz rtfk*jn4 slits. If both 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 by refl r r6u cj(r.4.todbz-lection 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 twor+m;7/ vf xahu monochromatic light waves can interfere constructively or destructively, depending on their phase differena7 fuxv +hrm;/ce. 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 issl75nws 9 q2pfl4zk)u traveling in glass, strikes an air boundary, therw squkl2zf )n79ls45p e 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, whi yr hh+7t56etg6r6 snlch is traveling in air, is reflected by a glass surface, thtr n66e6 +thhy lsgr57ere 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 viewedhz -t8ds3,ui jc,/lopf,( sdq in white light. As the film becomes very much thinner ,di,jsf q/p,zsdt-(uo83lch than the wavelength 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 magnesium fluor jj54z0,+vot l.g vkc25feooride, what is the minimum thickness of magnesium fluoride coating that must be applied to a glass lenj ockrvz5 otfj+0v o,eg52l4 .s to make it non-reflecting for that wavelength? (The index of refraction of magnesium fluoride is intermediate to that of glass and air.)

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens is placed on a flat glass plate and illuminated from above with mote8/c nx;a pd7nochromatic red light. When viewed from above, concentric bands of red and dark are observed. What does one observe at the exact cee/x7nc tp8d ;anter 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 aom /rrzc (hp/w9:ru)glare from refc ( or:w)zm/9ph urra/lected 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 directit 7xq)h8h(x0xo/ mjzgon of 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 cuvlhm(eh0b-7y 6 a+j a Polar76jav ecm lu0h(b -h+yoid 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 Polx/ggmi1w jmy 1o 66ua9:qzmd) aroid films are perpendicular to each other, what is the percentage of the incident light which will pass the twoud6 : ami1m)j6 gm/z o9wg1yqx films?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sunlight reflected from6fsy8 :0ljlmqzivft2; n a7 c2 the surface 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 sunuh6i)vm-zu o/w.53 cwu )mse1u+ hrwa light 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 exh j) l 3(y,;optpssg.gdibited?

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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 z8c* j*f5 bukumenith (overhead) than it does toward the horim8 cufbk 5j*u*zon. 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 606r j4a ;xq/da+r.kna w0 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the wavelength of the lj+a;/ a46 ar kxr.qdwnight 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 64 zhtfjz(9 dxvacuum. It passes into glass, which has an index of refraction of 1.50. What is the frequency of the light inside4(tz6 hxdz9f j 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 ei md* -2jj+h1wcnj.u600 nm in a vacuum. It passes into glass, which has an index of refraction of 1eh2i cjj+.d -*jwu1mn .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 acysg +705iv+lkvk-m6r l1)m9wo j9t 6p sqny 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 550f sp+4b u.- 4irdnxt7s nm in air is 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 nv4h n(m;6gr icm 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 8)pu cwv,u/or falls on these slits, and produces a fifth order interfere/uw 8c)uvr,opnce fringe at an angle of $32.3^{\circ}$. What is the wavelength of the light?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light of wavelength 575 nm falls on a double-slit and the third order brigh pfb r;cmk, lq+0tr,(xt fringe is seen at an cbkl m+p,x;rrt fq0(,angle of $6.5^{\circ}$. What is the separation between the double slits?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a Young's double slit experiment, if the separation between the two slits is : g*npw9b sz7/4ubnnd9 w.gch0.050 mm and the distance from the slits to a screen is 2.5 m, find the spacing between the firsb .ghpc79ngw:w nsbz/ d n*9u4t-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, andux25qm6gi 5g 1map3 dp two wavelengths, 750 nm dg1amxpgum 5p6i3 52qand 900 nm, illuminate the slits. A screen is placed 2.0 m from the slits. At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright 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 ligh-bc wu:*y 61e5vt 9)jcctjl ght of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent interfere -ybhgtv l9 w1cc)t65:j *jeucnce 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 Youn0nuw tq;xt- e lkxf*g)*s3k /bg's double slit setup that has a slit separation of 30.0 mm. The resultant bright fringe separation is 2.15 cm on a screen 1.20 m from the double slit. What is the separation between the third-order bright fringe and*fu0g 3sb*ql ;ewt nx/tx)kk- 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 contag):yu0.p smf ey0jsm 26rjgq 5ining two wavelengths, 480 nm 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. Determine the angle between the tw qg)ms5 p:s.yf0 yrujem06j2go 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 liig4s njd/p.9i ght (wavelength 480 nm) and red light (wavelength 670 nm) is incident g4.p/js 9iind 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 sli 6 g v8q pe ,gkaelf/n2s0 8)wylifl6*wws(f4pt of width 0.20 mm. What is the angular width of qnag,ll fi/w 80 lwesp (pskyef) 6fv62*48gwthe central diffraction 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 illu9.n8pwd jvpm0 nh-.vvminated by light of 550 nm wavelength. What is the angular separa9 pnjm8v.vnv 0pdhw-.tion 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 what;to aoc*1d :o*5ff wtt distance from the slit should a screen be placed if the second dark fringe in t t 5: o**c1taftdo;owfhe 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 slitodtnk.h; 7yda5h2/2f3dpu o ;q(aplv 0.20 mm wide and the diffraction pattern is produced(;nay vu/ 2dot;dpd.q k 3o52hfhalp7 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 obser5 36+po)rv nbi(k qqzd 9-eywcaxeqf );a-ge5ving sczieaefoxd)gqyq c qkn +(9v;ra epbw)6--535 reen 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 ivx5db6,;3fur kfw 6d ys incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the width 3fuf6 ky; b dwx5d,r6vof 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 witv-h /-j0t.,s bahahpmgyb:0oh 7000 lines per centimeter, its second order maxim g :mv.0joh,pba--ts h0ab/hyum 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 ang5bl*sfu6k wo -d d:pn,le between the central maximum and the fourth lfdw5*ns:bp uk6d,-oorder 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 incide we9f 5q;z5v-)kae0xaxj wa 7pnt on a grating that is 75 mm wide and ruled with 50,000 lines. The second-order maximum iw7)j e;0kxa -xvaz w5aqpe 5f9s 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 expb86 c xz/zf)2ei6x026kco v ,fvfl lereriment, 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 centrlfevr),2 zfxv 2c668l0eckb xfi z/6 oal 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 ruled on it. Whagc ib2fn /8abzf3k1wf b8;7. 4uz jwlbt is the angular separation between the second and the third orders on the same side wl3k2;ub8 bac zb fifg7fnw4/.b8jz1of the central order when the grating 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 a grating. If the grating h10e 1 or;dfw1b;wcecu/lz h.o as 2000 lines per centimeter, at what angle will red lfzdhr;1eu co 1e1 .cb;/o0ww 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)26(i0 paecxv s(newa/(r -pwx is used to calibrate a grating. If the first-order maximum a(veax e-w(pns/x2 i(w 60prc 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 incident normall(,jbzboh0(qj *y- l8adgi sz-y on a grating. If the third-order maximum of the diffra(o zjjd0*bashy - -8i,bzlg(q ction 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 grating. If 8hqgetp;5c il. bug57the third-order maximum of the diffractt .i g58 cu75hlbgpqe;ion 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 separatek59)baofc hi 1d from another glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent interference bands when vie)kfhi1 bca 5o9wed 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 1.3 a( od olx)ouqtzf4.,33. What minimum thickness of this bubble will ensure maximum reflectance of normally incident 530 nm wavelengtfu3(q)zootxl. 4 ad o,h 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). W3 i0nx sb2xe+ wxn efaru.rctt31:i/+hat is the minimum thickness of film that will give an interference when the light is incident normallyx 1 t:.w/3xfecai3+xnbrt02 einus r+ 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 = 1auz/odk;; w,t 8z9z db.30) on a glass lens (n = 1.50) for wav;8,zzu d;ao/t zb9dwkelength 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 aq tm rec5g:3j:73tq win a beam of unpolarized light and the intensity of the transmitted light is 1. A second ideal polarizer ic ae:j :q twm75g33qtrs 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 its preferred direction rotgig u fi.l(7qyne38pii-l .7 op)0vt xated $30^{\circ}$ 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 iv -n 54,suua:z xjku3flat piece of glass at an angle of z:sx,ui54-uan3 jv uk$57.3^{\circ}$. 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 passedb8,yi *ltu f4f5 exbi; through a polarizer-analyzer combination. The transmission axes of the polarizeryffu l 5xbt8ieb;*i, 4 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 Moon when its image reflhtaqiq cp.iv (5; ;n)kected in calm water is completa 5p.;;n q qtk(iv)ichely polarized?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of light passes through a polarizer and then an analyzer. In this pg6ov+hau+r*t7 e.ky u rocess, the intensity of the light transmitted is reduced to 10% of the intensity incident y7tv+o hg+*6.uar k ueon 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 in vacuum and reflectingmal5mb(n vvp k 2yb; 7io(8+xe off a piece of glasvmlon bxa 7e m;v52bp(ki+(8 ys of index of refraction 1.48?

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