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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: 匿名未登录  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 imh4a1e8kc*dsb ages by mirrors and lenses has been successful*bhs 148ekcda described 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 incidence g-i8cst0x:n g

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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 mirr iq/rq8a4cj *kors 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 ivi 8 gget3wf0ct hztb*.qt ,w- g5nw,9s

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Plane mirrors produce ima*w)evgse 7 3p-1dhir iges 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 rays do not actually pass through )lv s ,a-wh 3t0p/5x9yrq :k5meuosqn the image location, and would not appear on paper or film placed at that lo ms/v aq9yk0 t3uo5p5-:nexsl, )rh qwcation 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 light rays pass through the image location, and could 0jgr-u z 9+ /l1je)6arpq wbudappear on paper or film pla+1g0-9zj )alq pwru 6u bdrej/ced at the that 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 virt2 i r7sj+uzvyl r0 yn5qqsm)nz)o, ;x4ual image?

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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 reflecy99 d hn0m;p bcpiv6ftz,0 vl8y q;:notion takes place on the outer surface of the shq8npy9f;tdbc0v , l:np; vzm6y 0oi9pherical 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 inner surface of1n 6dbeo/t h 7/t bsfre,hg,+y the sphere is refer,t fbdh tbs7 61gny eo/,+eh/rred 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) 9n:og r., ftb/trle0dsgb9l r, the focal length 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 concave mirror's axis, strikes b5df*;hbo1) +8 5 vcjrfxmjxm the mirror's surface near its midpoint. Aftef 1mdx fjjbc+v5m*obh ;)5 rx8r reflection, 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 mirro/ nol3m) mkmwv2ww98ygnq. - fr on a path parallel to 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, travelis w4v17i0,)yquc q rjeng obliquely to a concave mirror's axis, crosses the axis at the mirror's center of curvatquis4w, qv 1cj0 7y)reure 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 tkpqua6z ib, elhf;1 3:i2mdp .hrough the center of curvature is reflh1a:.mufe6qbzp, pi;2l k id3ected

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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, /j 8 phfjk9pdjrf x:)ex,1+1txudu -hcrosses the axis at the mirror's focal point before striking the mirror's surface. After reflx-1,e:jujx9hpfxh+ kdfdrp j1)t u 8 /ection, 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 on a path through the fo rlt1f 9 pk 3mqtmctu-btu )+.c7*nu/vcal point is reflectedm3tt)9nlb+ t7 .cu*vuumcf r/pk 1tq-

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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 6 k og4:7-dbgjwcdp6 xthree rays for finding the image position due to a curved mirrdj-xb ck4dw:g 6p6o7g 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 mg yf chd/wk/-r/- ww4*gz :kguirror, exactly at its focal point,

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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 centelramv gj.,r, 9r of curvature. The image producedr 9mjgav,lr., by 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 between a concavuqs ur/ q-cyz99-/orme mirror's center of curvature and its focal point. / /9uqozqu-mrr-y9cs The image produced by the mirror is located

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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 betwybo77t* *d nvgg/3dozeen a concave mirror's surface and its focal point. The in/3g vdozd77o* *tgby mage 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 di(vlx6jb(5dqqbqh:v7zm r1g+nwn8 ;vt7q b 6jstance from it as its radius of cuh7vz vvl87qm5q( b(nxgwj6n6 r b: +qdbtq 1;jrvature,

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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 n/4ce vi9q5m lvq*ch :a convex mirror, at the same distance from it as its fovh5c :c in q*e/vql49mcal length,

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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 into a cur b 6x+mt:o3cpa1fhph:ved mirror you see a magnified image (a great big you) and sometimec to+3:1bhhax6 :ppmf s you see a diminished image (a little you). If you look at the bottom (convex) 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 pro -codz5rub+r5 duce images which

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Convex spherical mirrors produ/9 tt7 1r2k lteme5xhnce 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 mir.1pok xe8zps 2u57ucb htr x1(ror produces an image which 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 mirror lx:.:k6ff cu1w anav2 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 y bzp*dpc+kzn9f8oo 2c3(l+w a mirror means

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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 posif7 mi+ws3g vgp/r2m+59cryw ctive, the image formed 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 negative, th f.s3 inx94cvuyuc0.ue 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 zxf/guj- sm9i.v:x0p a positive 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 n cqs8ya .ljq*7egative 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 imajgl e c xq,tlcck-058,ge is,j5ccgtx,l -e cql80k

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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 tohwb m vki:bk3y4)g u:+:vyva g1 ssaq20,qr(han one, then the image isvh+2034 busy:,vbi: swy )v:a or qgkg1mk(aq

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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 magnification is equal t+* lpiyv 5e/ycb9lo )mo 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 fastesq*y k4rdl -n)tt

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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 substan0 nhieqdzk7* -ces, the index of 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 y:me cl- *y j 3urvsyx):a+ sg4od,8hsthan one 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 diafz.vy:/ eh7zbmond is $2.42$. 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 incidenc g s/ s frfvjq23kx0sx3xk2du :2tui+4e

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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 angle inpcn u 5*-biki 8g:nf)kto 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 water. The angle of refraction wiq,zn.s 8zfn jqyn/;y2ll 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 incidlkuzdn0tp58. o; 9aig ent 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 opxp/ ljle7ass/tvm b8(:p+ f3svi1sd7 tics 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 bwdz0io(:k t*bm+j2 xms9b q6peam of light passing from water into air is $48.8^{\circ}$. 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 whichne.t ;,:lnkyk lenses 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 wvud2c6kx;cq54 )zhy 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 the center than the e kmj8wlkqk+-aq(t1o c5wd5h 7 dges 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 at the cenxwj/x)lyvxkk3 zp; d.h r7:m*ter

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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 that len v5 z3mw*y ysby 13;5dp:oktgrs B is rated at 20 diopters, whereas lens A is rated at 10 diopters. The focal lengtyg3 b1r w yovz*:ypmk 55dts3;h 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 tozesn;da- (d78r.e ymn the axis of a thin concave lens, strikes the lens near its midpoint. After tr d n;ay8men- (d.zesr7aveling though the lens, this ray 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;h r0p 0bkdtmnp27 wo), strikes the lens near its midpoint. After traveling through the lens, this ray emerges traveling o wnbkh0p;) 0r7p2mtdobliquely 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 positwhixt/2kz nhk-6m46mdv5v( kion due to a thin lensdmv2wk i(/x4v th5z6nkk-h m6 .
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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 focaluu:e(;x; b;k euww )(ahtlfn3 length $f$. 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 focal le-.n7nrizbco0 x y4fc ,v/w-jw ngth $f$. 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 lengthq7 ;rtwuo.)22 h-6xzs c6rosew0vw s r $f$. 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 5lc kci87:8ee ira5amoc5a:zfocal 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 legof b.d)cut2d cc 96s)hm i8k-ngth $f$. 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 azey: (1bi ww, .)jxz2bvco 8jz convex lens and its focal point. The image formed i)i.wwjzv:1 zz 2x(8 ,ejybcbos

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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 co ( 0+w qsceau5ufj+ay5c*7jmlpk -*ikncave lenses

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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 through a magnify/+66 tqcmu,wy rtmy/iek y9m4/.xxc qing 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 az74jsy;zfch 1 nd the screen is placed a converging lens of focal length 24 cm. The filament of the lamp can be imaged on the screen. As the lens position is varied with respect to thhj4sz7 1f;cz ye 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 le*gak*tpp1; j: 9klv lnpb;x3l; nc/ bsngths $f_1$ 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 arp4owztuub1fgv xc-1sx -7 02 ee placed in contact. If each has a focal length of 20 cm, how would you expect the com0w ex1xucps14t bg-u2o- 7fvzbination 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 incidenc: a kt1mzp4slfabg64*e of sl t4gz:maf1kb46* ap$52^{\circ}$. 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 image fr 7q 1o-rqqfi7ormed by the mirror 7-1fr 7qq qroiappears 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 imhby/ l e:3d jdmorm/s3+7, rdvage when you stand 0.75 m in front of a vertical plane mir7 3 ,r3/m:b+ord/m vdeyh sldjror?

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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 approach a vertical plane mirrorrq/exf1xdp1n 7px 1n u6rnu8 - at a speed of 2 rr nx-/xp8nqepun1u 71d6fx1m/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 of curvature of 20 cm. lk ru(y.q7 zgpz,c(m3cdx70v How far from the mirror is the foxl cyz3pz(u0 gdrq77m.cvk,( cal point located?

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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 razs +;h3dw,k fidius of 20 cm creates a real image 30 cm from the mirror. What is the oidwh ,f3s +kz;bject 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 mirror, and the image is 3.0 cm in frontsp p: 4bggaj5l- c/+os cjp +g5 b:oa/ssl4-p gof the 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. Wherv;0h xf /wal2ne is the i0 f2 nahw/;lvxmage?

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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 lfbrchv .d x cd*yp q70-p*zx2-ength of 20 cm. An object is placed 10 cm in front of thecp q02b*cy dx7f z hxrd-*pv-. mirror 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 le* m sd:cw,bvn2ngth of 20 cm. An object is placed 30 cm in front of the mirror on the mirror's axis.sb2:dvnw mc *, Where is the image located?

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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 4.1uyxkg3m 2-rv7 cm tall, and 10 cm from the mrvuk2 -3 xm1gyirror. 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 concave mirror of focal length 20 cm. Thel(ba pwd0: o 7+lurg3v object is 4.0 cm tall. How tall is tvg+pb w(a roudl:70 3lhe 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. The image is 38.6 cm tall, toj /k6)y)x,fv4 werydp-fy 6and 14.8 cm from the mirror.6ffrkoytwx/v-yd4 ,y6) ) j pe How far is the object 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 mirror. If the image is 4.0 y77*fsux -b gacm tall, how far is it from the mirror7y*- sfb7u gxa?

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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. The kz9qbi (jabap6 ; dr4l2,scm5object is 4.0 cm tall. Where is the image located,25 iz4qd6; pj lr asbbacm(k9?

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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 (co/s p k4x34gyddd)-hjl ncave mirror), the erect image is twice the /d- xj443dhgpy s)lkd size of the object. What is the focal length of the mirror?

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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 concave shaving mpa a:f ot3pm,x fpk +jjf4m6*-irror. If the image is an erect image 1.5 times as large as the object, what is the mirro -tkmf+3a*6 jmopffapp, :4jxr'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 focal length 5.0 cm. Where r5nxlcu * 3qj)is the object?urc3)5j xl nq*

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex spherical mic+1xftu; .83ww nplsm rror has a focal length of -20 cm. An object is placed 10 cm inlt c;w 8xsumw3np+ f1. front of the mirror 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 focal length of -20 cm. An object is pla12o 9d/2-(mgrbwowlh o jjv+ dced 30 cm in front of the mirror on the mirror's axis. Where is the -9gm+hj b1odwr2v/o ojl2w (d image located?

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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. Thhj.bq ej57) bse image is 5.8 cm behind the mirror. What i e7j)sb5.jq bhs the focal length of the mirror?

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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 talao14in6pmv+xc o+xw t-f v i4/l. The image is 7.80 cm tall, and 14.8 cm from a convex mirror. Wx opn/o- w1vc4+4ax+vii6tf mhat is the mirror's focal length?

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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 4fk :x-kppj c 7e)oq+h:p kbt:of 1.50, what is the speed of light through it?+:fb ekh tcjk -x:qpop7k) p4:

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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 interface at aa lw bib6:8wy4z3i zw8n 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 h(b 4aht62ksx 0.bnezfrom air 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 to water. The incoming ray is at an anm n:fa yv yeted:is 8 +t6t4w:1zha7q3gle 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 thieg(: kuai+j6 4ay n4gjck is spread smoothly and evenly 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 iyaj :uan(kgg64ji 4e+ncidence 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 surluc+oi6z lte,p5 j7z i +cf)+vface of a still pond of water. At what angle must the diver shv e)lzo 76+ p5cuzf+i,jci tl+ine 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 is 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, 7f )hlid/m* )l sxj(dhstrikes a plate of transparent material at an angle of incidenchs/7dl d) (lixj)f* hme of $56.0^{\circ}$. 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 8i9cwf 2yj :zjair is incident on a slab of transparent material. The i 982wyij :zjcfncident beam and the refracted beam make angles 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 ofvviq/1n bf01j z 62qut 1.46. Light is passing through it at fv 6vub2iqt1j0q/nz 1$53.0^{\circ}$. 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 li,7;yd sc63:2ob1lcn/gi w s a q:pgbabght traveling from crown glass (n = 1.52) into water ( 3/ggc2 w7d bn ay6so1,pqsbl:cb; :ain = 1.33)?

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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 o5s rx )v*nr m qxc7x2c:h(n2nlf incidenceq2x*lmcn xv(5cnrrx )2 :7hs n?

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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 index of refraction of 1.5s* 1wdyb.; h4tebzr(3x6 kths0. For what angle of inh1tx*e swsykb;.hb6d (z34 r tcidence will light remain within the 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 substance is measurtespaz 6,s(+cly*)ojw9z xk7 ed 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 substanc,s 5+y(w oijvy h+lwl7e 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 vygk zwym9) /cd 5h)tza i49(ahas a diameter of 20 mm. Its ends are perpendicular to its axis. Its index of refraction is 1.30. What is the maximum number of reflecti5dyz)zmc/y4k 9a9 ti hg(avw )ons a light ray entering one end will make before it emerges from the 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 iez14o (kj-j abt4az5awm+ h.g see1)hn front of a 20 cm focal length converging lens. How5bzsozhag(ea )k h+j 4at j 4w.em1-e1 far is the image of this object 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. Wherp(if:og ;6vgve is vvip; :g6fo(gthe image?

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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 is gzu ,flh tkp sq74-us.jz i3o wg.*.-w4.0 mm behind the lens. What is the focal length of the lenl ozf.ktgsq.3h u,.4iw--*7uzjw pg ss?

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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 .ue;o 4*4qt7lrlq tvy65o stt.0 mm tall, how far is it from the lenstto q.*el;o 6sy4tvqt r45ul7?

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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 image ig aew+y+v2ne 5 opa-d0a90zvps half the size of the object. What ivvp agy5 +0w+d0a2zo- 9neapes 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 20hia4u ngu.x43ph0u.t sm dqconverging lens with focal length 5.0 mm. Where is the object4it2qpn ug.00dm4uxs hh.au3?

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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 cm from a converging lens. The image i2n28xy8o9tyhanqj7 z*0 zjqgs virtual and 6.2 cm aj2xjy 8oq8 gh2 zn0yz*9n 7qttall. What is the focal length of 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 image is 4.0 mm tall, and zb uoas8p5eqz2ca83) 9.0 cm from the lce3)sz 2zb8quo a58apens. 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 60 cm from a converging lenf/hmt 1 kg rd4i0y6l;4g3loxds, it forms a real image. When the object is moved to 40 cm from the lens, the image moves 10 cm farther from the lens. What is the focal length of the 0l44 1g3dtri k;dy/om lg6fxhlens?

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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 convexmspc. eo.d5gukz)v62 i p5qp o 1:bt7o lens. The lens has a focal length of 10 cm. What are the vap cp 5igv .6k5pq7uo2: .1emobd) zsotlues, respectively, of the image distance and lateral magnification?

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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 cm in front of a diverging lens wi*fnx8q- kpb )foz 5(k-irz *nlth a focal length of 10 cm. What is the * 8o qbx k)fn l5-f(zin-kzr*pimage distance?

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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 diverging lens with a focal len-o,j+ n/w-oxi gipn +jgth of 10 cm. What is the magnifo- n+g-jjp, w+ xi/noiication?

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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 frok yx7 k9 5-ulb9 whc0y;vno3dtnt of a diverging lens. The image is 4.0 cm from the lens. How tall is the 9yn3cd-w;59hyb kx luvo70k timage?

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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, and is in front of a diverginik3 kk426 ot 0sgejo:rg lens. The image is 2.5 cm tall, and 7.5 cm from the lens. What is the focal length i 6o4k3gs:t02rjk ok eof 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 imanl l12:0l18oc ndawzg/y 6cil ge forms at a distance of 50 cm from the lens, on t6l:i1c lyza w8 02nnd/clgol1he 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 objnxpga8qv x7 b0yhz/7 /ect be placed if it is to form a virtual image magnif0xgpyaq8/hv 7nx7bz /ied 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 focal length lens, such as is usedr+exon8i9q1 s in many 35-mm cameras, must a i1ns98qerx+o n object be positioned if it is to form a real image magnified in size 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, are placed in contact. Wqmu gzz;5pc g)qp ,:v-hat is the focal le zug-qzqm;g:pc, 5)p vngth 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 radii of curvature 46 cm, and is m5oh*ha;q;r 6a+ s) p8ujsvv-ccelo*h ade of glass of index of refraction n = 1.60. What is t5q s)v a;*levu6oh;o+*8chpjcsahr - he 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 glass (n = 1.50) has a radi3dmx)z( z u,bzunxs3p1 x.oq 7us of 40 cm on the front side anzzxo3) x n1b.quxmp(7du 3z, sd 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 bymjerkq1,h.g1 using 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 is the focal length kh1,mg qjr1.e 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 focal length of 40 cm. It is made of glass of g :-q1hie:fquk *sxn2 index of -*e gknqqhusf1 xi 2::refraction
1.65. What radius of curvature is required?

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