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习题练习:Physics Unit23: Light and Geometric Optics

 作者: admin   总分: 126分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月28日 10:53  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Reflection, refraction, and the formation of images by mirrors and *z 488my)fs9dauzb/ mzzh6 hj4p+ jadlenses has been successful 9myz* 6amp z8zhj8u+ 4)ddba s4 fzh/jdescribed by the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The angle of incidence9a 1bgub seic 0:+xg(r

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle on which mirror wrd2)+ kegymtiaz.o //dpk 8)s work is

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A plane mirror forms an image that ieou(tc+1pi,i9vo ,x x jc* ;i/dxl7e gs

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Plane mirrors producyu db65 s0l5aag/+r yze images which

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An image formed when the light rqyx9avdg +, z(ays do not actually pass through the image location, and would not appea 9,yxqga (+vdzr on paper or film placed at that location is referred to as

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An image formed when the li-c yce w4m;ne+:rc 0bkght rays pass through the image location, and could appear on paper or film placed at the thab4:cnem 0 w-;+rcekcy t location is referred to as

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Is it possible to see a virtual ;tsyv2(yz+2 kq c li4iimage?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A spherical mirror on which reflection take z: (d ifg m-)dot yy:9;.riw*tx/qbausw 9b2as place on the outer surface of the spheridwi: -;i) u(zq/9 g2sba o w*fym9brtta. :yxdcal shape is referred to as a

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A spherical mirror on which reflection takes place on the i4f(y lh1;//eq m. xkqj-xty qgnner surface of the sphere isthqy1q-f/q.xe;k(j gxml/y4 referred to as a

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the radius of curvature of the concave mirror is r, the focal lenfod3j0)sz6y ca0oo +bfv;sa1gth is

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A light ray, traveling parallel to a conc;-:s8lf9hub1tn etkb ave mirror's axis, strikes the mirror's surface near its midpoint. After rl9hesn kb :u -tft1;8beflection, this ray

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light arriving at a concave mirror on a path parallel k,+f+fv xtjywm 6(+tnpf ; k o49n9shato the axis is reflected

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A light ray, traveling obliquely to a concavmqd.acc8(n u1mq 9vf1 -j ,gu0omv7uts0x, owe mirror's axis, crosses the axis at the mirror's d1u,0u,c(vcmsu 1jfmoqq78 t o9 m -nw0a. xgvcenter of curvature before striking the mirror's surface. After reflection, this ray

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light arriving at a concave mirror on a path through te,.x)idje q1k he center of curvature is reflecteeqx. d 1kj)e,id

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A light ray, traveling obliquely to a concave mirror's surface, crem6a: 7kd-gcc ax7u1 yosses the axis at the mirror's focal point before striking the mirror's surface7gyde ak-mcu16a 7cx:. After reflection, this ray

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light arriving at a concave mirror oi w*r)o ab/+vvn a path through the focal point is reflected i/orbw)av+*v

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18#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State how to draw the three rays for finding the image positionhy :v4zb/ur7m0 f6 qxtkjs1(i due to a curved mirr6k/i:z 04yfut(hqsx r1bm v7j or.
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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you stand in front of a concave mirror, exactly at its focal ploi: h5-jwl awj))s b(oint,

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is placed at a concave mirror's center of curvature. The imag3wb1gdqs1),p,l i cdqe produced by ,plgqdd)cqw i ,b31s1 the mirror is located

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is positioned beti(oe r d,i091b9sw2kyk w b(rkween a concave mirror's center of curvature and its focal point. The image produced by the mirror is ldykk9 (0( e rs2iwk,wbb1r9io ocated

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is situated betqn.uvm1 s jy1al*w0w 1ween a concave mirror's surface and its focal point. The imu* q11yw vnsalwj0m1.age formed in this case is

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you stand in front of a convex mirror, at the same distapwbg1 ,ns(e5y geu0.mnce from it as its radius of curvategny5(gusb 0m e w1.p,ure,

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you stand in front of a convex mirror, at the same distance from )xyyamf5(g aq 1.ze8yf70 ubfit as its focal .a y1bg5zf( 07ffqam)8uyxy elength,

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sometimes when you look inf;o1c*f rerx s*ut,f4to a curved mirror you see a magnified image (a great big you) and sometimes you see a diminished image (a little you). If you look at the bottom (convex)eu*;xsfrtfo*c1 4,fr side of a shiny spoon, what will you see?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Concave spherical mirrors produce images whzlk4h9p cxnz+kldzd03:5l + lich

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Convex spherical mirrors p *hb7-uq0fgnueqt.: w roduce images which

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A single concave spherical mirror produces an image wtss hk1 :tmu2+ ka*e+ohich is

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A single convex spherical mirgobtk ,t ; eu.:)h4awiror produces an image which is

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A negative magnification for a mirror mea 2pyk gkn8da9fcl(+-uns

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the image distance is positive, the image fo uzp-yw/m. ihs*8*9a8z qyesr5pfi -ormed is

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the image distance is ,zc*0a /lbez.seb6z o 6*zwtmnegative, the image formed is

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the magnification is a positiq0zqa jg d,+6bve value, the image is

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the magnification is a hmrcl*l-a /7jt5znh , negative value, the image is

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the absolute value of the magnification is larger than one, then the imanpba oc4 j6 e/4/ay7rmge isaco6/ nrpj4 y/ba 47em

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the absolute value of the magnification is smaller than one, then thrhfso5a/(2dz)bw k7ee image ik7 zse/2rw b fda)ho(5s

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the absolute value of the magnifi mfhsr7r1iu3i/oqr, 3 cation is equal to one, then the image is

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light travels fastest8esilkv* )jww1 i6ul.x hp ,5b

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For all transparent material substances, the index ofm pui-hfxp-08 refraction

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An index of refraction less than one z2 */0wr1b+trref, qgy vj-zl for a medium would imply

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The index of refraction of diamond iso8viz9h4 : pz.xhkj4a $2.42$. This means that a given frequency of light travels

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The angle of incidencevcvr1 re7-8(3y dujn9eu odj1

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light traveling at an angl+mvok b f+jy3q2sse8m c 9+pt6e into a denser medium is refracted

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light enters air from l/eve4b*l p 6 (j8o4i(zkz anvwater. The angle of refraction will be

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A ray of light, which is traveling in air, is incide,6sgak,a4tn vj5p v ;pnt on a glass plate at a $45^{\circ}$ angle. The angle of refraction in the glass

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle on which fiber op5 g73r4a6nv6j/c2fx5omdim k+mwg d ja8t6 y ptics is based is

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The critical angle for a beam of light passing from water into air gsczcs,(a 37u)n. v/fm yk c+nis $48.8^{\circ}$. This means that all light rays with an angle of incidence greater than this angle will be

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle on which len v0 3)a.rnddj7oud o1zses work is

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Lenses that are thickest at the center+iyztg*w 8 b5v fkh02n called

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Lenses that are thinner at wego0w4i ma2 7the center than the edges are called

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Lenses that are thicker annn(7fd(xwb8qg7x1mvaf j y3kl2+8z t the center

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two diverging lenses are similar except thp 0 fum6d i/wdcnc8r 49;n.gxxat lens B is rated at 20 diopters, whereas lens A ismx 9wg; 4/nr6dudnx fp.i80cc rated at 10 diopters. The focal length of lens B is

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A light ray, traveling parallel t*(y9a,zz3 bs a5mnhedo the axis of a thin concave lens, strikes the lens near its midpoint. After traveling though the lens, this ram*,hbnz zad5e(3y9 asy emerges traveling obliquely to the axis of the lens

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A light ray, traveling parallel to the axis of a convex thin lens, striztowz90bi g6u4p u -t0kes the lens near its midpoint. After traveling through the lens, this ray emerges o0gb9upt04- tzzw 6iutraveling obliquely to the axis of the lens

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55#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State how to draw the three rays for finding the image posititntlwgru c.m76f1:8y on due to a thin lec.w61u: mg78ytnf rltns.
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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens has focal leng bp9xw(z0fgm :th $f$. An object is located at infinity. The image formed is located

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens has a f(nmip.z1sif,e3 pe9 tn;f8e eocal length $f$. An object is placed at $f$ on the axis. The image formed is located

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens has a focal length .pz .nns1n rwhv:(5mc$f$. An object is placed at $f$ on the axis. The image formed is located

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens has a focal, f, obde9dw3a length $f$. An object is placed between $f$ and $2f$ on the axis. The image formed is located

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens has a focal lbjc+(3. cz 3e81wpg:myns anx )dqo-u ength $f$. An object is placed between infinity and $2f$ from the lens on its axis. The image formed is located

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A object is placed between ;mkrwvq ul0rj . bfba3+;/y* da convex lens and its focal point. The image formed iw.; ul0jb+fky/abmq*r d3 vr;s

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The images formed by concave lenses(ropcrlgb4 s7c9r 1(-fdjo9-.w nq r o

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The image of the rare stamp you see thro5zps0l +16 ws1* qy7jiulq mxzugh a magnifying glass is

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A lamp is placed 1 m from a screen. Between the lamp and the screen akua+:l ; ;av70yokspis placed a converging lens of focal length 24 cm. :uapkv oalk ;;a0+y7s The filament of the lamp can be imaged on the screen. As the lens position is varied with respect to the lamp,

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin lenses, of focal lengn j1w41vl:xsj ths $f_1$ and $f_2$ placed in contact with each other are equivalent to a single lens of focal length of

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin double-convex (convex-convex) lenses a,w ex7kji,bes 6,-cs: b pac(nre placed in contact. If each has a focal length of 2jes ea -wb( bxns,,kc6c7:,pi0 cm, how would you expect the combination to function?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A diverging lens ($f = -4.0 \; cm$) is positioned 2.0 cm to the left of a converging lens ($f = +6.0 \; cm$). A 1.0-mm diameter beam of parallel light rays is incident on the diverging lens from the left. After leaving the converging lens, the outgoing rays

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A laser beam strikes a plane's reflecting surface with an angle of i-l8p3ve( t+cp zef .klhgqb:0ncidence of h 8qblk-e+0p3:l (.c ztfgvep$52^{\circ}$. What is the angle between the incident ray and the reflected ray?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is located 2.6 m in front of a plane mirror. The im pz058omc (umoage formed by the mirro5c0opm(o m8uz r appears to be

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How far are you from your image when you st02pid3efmd jll0mjb: l24i3 n and 0.75 m in front of a vertical plane mirrorlb 2pn0 efm0 :jlidji 3324lmd?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How fast do you approach your image when you appo 4b9 cs+ e;zeii0c3qeroach a vertical plane mirror at a speed ofi bqe4 +e9s03eizco;c 2 m/s?

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A spherical concave mirror has a radius f*l7n9+kj bn1hw j,zsof curvature of 20 cm. How far from the mirror is the focal point located jnhjk z7*s+9f,nw1 bl?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A concave mirror with a radius of 20 m i4c: n8 fn 7dqom71eib8(g8rie,fqpcm creates a real image 30 cm from the mirror. What is:i e7n(,o88 memqqipcr7 i 1n4fdfg b8 the object distance?

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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A object is 12 cm in front of a concave mu2vczuub qhp4 ni 8 3zny/i4:-irror, and the image is 3.0 cm in front of the 4i3b4-cun/uiuyq:hpn z8z2 v mirror. What is the focal length of the mirror?

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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 10 cm in front of a concave mirror with focal length 3 cm. m0ls2oi vg7+oWhere is the immoi027 +l vsgoage?

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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A concave spherical mirror has a focal length of 20 c0; p zfhf)4ylxm. An object is placed 10 cm in front of the mirrof4 0;x phyfzl)r on the mirror's axis. Where is the image located?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A concave spherical mirror has a focal length of 20 cm. An object5dygj uo9z:q . is placed 30 cm in front of the mirror on the mirror's axis. Where is the image lod5 oy:.g9zq ujcated?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 5.7 cm from a concave mirror. The image is 4.7 cm t*j jsv, ahhfk 4zt12:aall, and 10 cm from the mirrorv j2sa,ajf:hhk*14t z. How tall is the object?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is placed 15 cm from a concavaskey t 35.nhe mv:l*3e mirror of focal length 20 cm. The object is 4.0 cm tall. How tall is: e 3msvalnt.y*kh35e the image?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 47.5 cm tall. Thess n yzhco g:5a)s/.o8 image is 38.6 cm tall, and 14.8 cm from the mirror. How far is the objecc:sn5osoz.s h) / gay8t from the mirror?

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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.4 cm tall object is 4.0 cm from a concave mirror1 g fyt 4cy-/c8tqu+uh+fhtaoguc2f, o7p9m1. If the image is 4.0 cm tall, how -mff4 9tp+ tqhy fuc1uo/ 8,g 7 a+tyhc1uc2ogfar is it from the mirror?

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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is placed 15 cm from a concave mirror of focal length 20 cm. Thhks uw( .tgt)tah o62x)ii.:ne object is 4.0 cm tall. Where is the image )ht i) igus n2xt6w..a(:thko located?

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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a person stands 40 cm in front of a cosmetic mirror (concave mirror), thtm( oqiz5f *og+ozuy:gnn,t1y+- s x8e erect image is twice the size of the object. What is the focal length of the mir +8oz :oqz-yt,tmfg 1y+ogsi n*unx 5(ror?

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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person's face is 30 cm in front of a coxu yn pny-aio 3t+d165ncave shaving mirror. If the image is an erect image 1.5 times as large as the object, what is the mtu- ndox5iayp163 +y nirror's focal length?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An image is 4.0 cm behind a concave mirror with fikq6 8u-xj82pht n/x w/ji;mtocal length 5.0 cm. Where is thenhk/qux8/ip-268tm jti;xjw object?

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex spherical mirr557 l zepp2pa 1py1hmwt 15nsnor has a focal length of -20 cm. An object is placed 10 cm in front of the mirl1npnw at 5szp52 m51y17p pheror on the mirror's axis. Where is the image located?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex spherical mirror has a focs)dr mzdc 1f5(al length of -20 cm. An object is placed 30 cm in front of the mirror on the mirror's axis. Where is the image located?1 dczrs(mf )5d

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 14 cm in front of a convex mirror. shgire/0,prpo w 7z5w+ile:) The image is 5.8 cm behind the mirror. What is the focal length of the misi/0,plr h7wr)ei5gz :p we+orror?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 8.90 cm tall. The imacj .gs0*;jtoc ge is 7.80 cm tall, and 14.8 cm from a convex mirror. What is the mirror's focal len.jo jcts g0*;cgth?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a material has an index of refraction of 10xof5e 1sm *v ,xigkzk8: yf)k.50, what is the speed of light throevyfo)ki ,x85m1kgxz k :fs 0*ugh it?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A light ray in air is incident on an air to glass interf)d vm*(wyb+5 :*vsrp8pgwe p cace at an angle of $45^{\circ}$ and is refracted at an angle of $30^{\circ}$ to the normal. What is the index of refraction of the glass?

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92#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light enters a substance from ae qh h/oaue oq2;z:+pw*,8a uet mq83qir at an angle of $32.0^{\circ}$, and continues at an angle of $23.0^{\circ}$. What is the index of refraction of the substance?

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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light passes from air ,my:chdf8/ui;yuhy- to water. The incoming ray is at an angle of $17.0^{\circ}$ to the normal. The index of refraction is 1.33. What is the angle in the water?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An oil layer that is 5.0 cm thick is spread smoothly and e/.iyd- 5n:ma sst hka0bm cv67venly over the surface of water on a windless day. What is the angle of refraction in the water for a ray of light that has an angle of ibas v 5kahmi/.n0m:dyt 6-s7cncidence of $45^{\circ}$ as it enters the oil from the air above? (The index of refraction for oil is 1.15, and for water it is 1.33.)

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95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A diver is 1.2 m beneath the surface of6v) c8dmvy7ofn;mq -z a still pond of water. At what angle must the diver shine a beam of light toward the surface in order for a person on a distant bank to see it? (The index of refraction for water i;o)nv-8vfmm d7ycz6 q s 1.33.)

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of light, traveling in air, strikes a plate of trans2x(hu(fi4 n jnparent material at an angle of incidence of nnju ((4h2f ix$56.0^{\circ}$. It is observed that the reflected and refracted beams form an angle of $90.0^{\circ}$. What is the index of refraction of this material?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of light traveling in air is inctfr)e 86f,o2c/g qgaulb/.nf(v9q j irqh 4d- ident on a slab of transparent material. The incident beam and the refracted beam make angf(utvf- ge l ,qa//94gd8jqrq 2r .ic6bo)nhfles of $40^{\circ}$ and $26^{\circ}$ to the normal. What is the speed of light in the transparent material?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A substance has an index of refraction of 1.46. Light is passing through it sxnho7.e+k h:at 7okhe.n h+x:s$53.0^{\circ}$. At what angle will it leave into the air?

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99#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the critical angle for light traveling fr;mjc2:ixz1ph3 rcj/vlp4)ddne * ;/s xjj i c+om crown glass (n = 1.52) into water (n = 1.332/edj /; dhlximsccj v;1+4czip)pn*jr j3 x:)?

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100#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Lucite has an index of refraction of 1.50. What is its critical angle of incmd+zybq+ hu96bo-9* b tmt9xkidence? + 9tmokb txby*9u+9qhz6db-m

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101#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An optic fiber is made of clear plastic with indeh -;a) re0ymgex of refraction of 1.50. For what angle of incidence will light remain within he;e)-ar m0 ygthe plastic "guide"?

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102#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The critical angle for a subste-awf26yjw* zk5zl. hance is measured at $57.3^{\circ}$. Light enters from air at $45.0^{\circ}$. At what angle will it continue?

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103#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Light enters a substancezpnl*(u i:g)+fh b ,yp from air at $30.0^{\circ}$ to the normal. It continues through the substance at $23.0^{\circ}$ to the normal. What would be the critical angle for this substance?

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104#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An optical fiber is 1.0 meter long and has 6( if-a, blcboa diameter of 20 mm. Its ends are perpendicular to its axis. Its index of refraction is 1.30. What is the maximum number of reflections a light ray entering one end will make before it emerges from ticblfo b(-6, ahe other end?

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105#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is placed 40 cm in front of a 20 cm frchj07 u o.yh;ocal length converging lens. How far is the image of this oyc.ohj7hu0 ; rbject from the lens?

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106#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 12 cm in front of a converging lens with focal length 4 cm. Wr vvri1qn 8;xg9xi (l g6z79tahere is the image?vvai 8z igrr1l9x7(6;gqt9 nx

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107#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 15 mm in front of a converging lens, and the image kmvph.8 (a-mbis 4.0 mm behind th p-amv.hk m(8be lens. What is the focal length of the lens?

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108#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-mm tall object is 4.0 mm from a converging lens. If the image is 4.0 mmtdm2ai3 tnx8a8hwub88x4n - 3u- kh1w pqurw, tall, how fu w u3 ,k8 4-dq prbutwminhna -a8w81xth82x3ar is it from the lens?

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109#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an object is 40 m in front of a converging lens the inverted ima/: c )uz gggmdie)c+r9ge is half the size of the object. What i r) :g9gmz)gedi/ccu+s the focal length of this lens?

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110#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An image is 4.0 mm in front of a converging lens with focal length 5.0 mm. Wherv kh(ermo0y.g 5er:u ;e is tkg0h5 v e( .e;mu:yorrhe object?

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111#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 4.1 cm tall, and 10.3 qxb,w*kjv 4mo 4qysb6x,p- gv 3uyj2 .cm from a converging lens. The image is virtual and 6.2 cm tall. What is the focal length ob6qy2q wk,gb vmxy*oj 3u4s-j4,pv. xf the lens?

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112#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 15.2 mm from a converging lens. The imaj vb/6( /01hn vf0q;gkhf onxlge is 4.0 mm tall, and 9.0 bohhglx6(vn 0 /f1/n0q ;jvkf cm from the lens. How tall is the object?

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113#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an object is placed lae7tmqf58 sf+tech0:- 0zme 60 cm from a converging lens, it forms a real image. When the obja0ml+eh ceqt7t -5 szmf8:fe0 ect is moved to 40 cm from the lens, the image moves 10 cm farther from the lens. What is the focal length of the lens?

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114#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is placed at a distance of 30 cm from a thin convex lens. The0vq)z di*nbu;8a 7o .:kzufjg lens has a focal length of 10 cm. What are the values, respectively, of the image distance and lateral magn;.zv aq nj)g f0d*u7 8z:okbiuification?

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115#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is placed at 30 cz.e1 g: z9l41n r4jz wuiz1s4uojhn5fm in front of a diverging lens with a focal length of 10 cm. What is the image 1ng1ju rous:.f jz l z94z4h45 wni1zedistance?

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116#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is placed at 30 cm in front of a diver3sbgiv 41kt:csce yh15zz-t.7 6 tdboging lens with a focal length of 10 cm. What is the magnifit-kzs4seyb: c7.6ttzv i15 c bod3hg1cation?

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117#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 10.4 cm tall, and 4.8 cm in front ofvl+lmsoakt/ o( 3*a: o a diverging lens. The image is 4.0vslm akla+:3 *to/oo( cm from the lens. How tall is the image?

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118#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 6.0 cm tall, 6lgnm5.t mcy iij 2hhhl2m0/ d(/ihh +s(x:zcand is in front of a diverging lens. The image is 2.5 cm tall, and 7.5 cm from the lens. What is the focal lengthlnl6dhm5 .mthh2j ccx/+ :sh (zi h(imiy/2g0 of the lens?

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119#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is placed at a distance of 40 cm from a thin lens. If a virtual ima y)dcowax557tp6z r x9v-jz8ege forms at a distance of 50 cm 7wx65- e8 zpodycr jav9 5)zxtfrom the lens, on the same side as the object, what is the focal length of the lens?

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120#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How far from a lens of focal length 50 mm must the object be p13g )y;78:d:oj sbqk isp.l hoy+ndgd(*r xxk laced if it is to form a virtual imxi(o p ;*g)1.kqdlksj yx7n:s3gby+ hd:8or dage magnified in size by a factor of three?

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121#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How far from a 50-mm foa,/mdfbm5j-pp3 z9 mtcal length lens, such as is used in many 35-mm cameras, must an object be positioned if it is to form a real image magnified in siz tm5aj b 9m,3zmdp/f-pe by a factor of three?

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122#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two very thin lenses, each with focal length 20 cm, ,jj8h*:dwu mw are placed in contact. What is the focal hmwu8j, j dw*:length of this compound lens?

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123#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A double convex (convex-convex) thin lens has z b+scxi26kcpl(ch- i :2 .qtij2b9ai radii of curvature 46 cm, and is made of glass of index of refracti2 2pi+tbchqskc i:ia.-z lcb(j6 2xi9on n = 1.60. What is the focal length?

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124#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A double convex lens made of sk4aatfew)9 xew 4bf1ik,x; :een c4;glass (n = 1.50) has a radius of 40 cm on the front 4k)tbea:,eefc1;;ke4 n wsf 49xix awside and 30 cm on the back side. What is the focal length of the lens?

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125#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A biconvex lens is formed by usingxijr5f aar;vr76 (a1s a piece of plastic (n = 1.70). The radius of the front surface is 20 cm and the radius of the back surface is 30 cm. What;7rf56ar vraj1 sa(xi is the focal length of the lens?

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126#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A plano-convex lens is to have a f;9izt c:rv:i ;xisx7focal length of 40 cm. It is made of glass of indexf; zstvc;ri : 7xxii9: of refraction
1.65. What radius of curvature is required?

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