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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 mn9qe0 dfvez n/r5ylh4x:l,atrig:* 51xl0 ph irrors and lenses has been successful describ 5egdalf::in51qhlx y, 0z 4el/xv nht9pr0r*ed 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 inciden 7do;on :ixa/fj/1sywce

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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 mirrors work isa h09k uyc/v2b

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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 tha/ +c 3g cwvilh*,beo87ast8f it is

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Plane mirrors produce imo +sch-o:4/dwno uw- oages 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 r1d01taul /cysays do not actually pass through the image location, and would not apy/d1sc01au ltpear 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 light rays pass t i2gan *3g))bhcm.ydy0 b4yp through the image location, and could appear on paper or film placed at the that lhgd yt*4gy2nbcm p0y. ib) a3)ocation 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 virtue;qj g9la ng3srf 0fj8jm;0x 1al 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 reflection takes plactdl1 /b9:/1w7j s zirjt*f siie on the outer surface of the spherical shape is rer7 * 1 lss:/ijbi/ti9dt1jzwfferred 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( .mrey8unk g(yok/0axrk )(z inner surface of the s(uy/mryr.ko e( zan(0 kx )k8gphere is 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 foc;j8 jz v9q4tqf1 xzmn+ q:ivv m zd4yt*10gkx:al 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 the mir6posi1i2atrw uci2 9,ror's su2io,61ia9ct pw rsi2urface near its midpoint. After 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 mirror on a path parallel to the axis is ref7xyhgg g9r7lx1e 6fy ,h -92noaqqcj-lected

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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 concave mirror's axis, crosses the axis atb kbxa .o:w np.5e;e:m,/ uzie the mirror's center of curvature before striking the mirror'bn: kb,p. 5wu/;:. ioemezx aes 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 hvvux e9x-b)6 the center of curvature is rex be)h6-vv9uxflected

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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 t q7kd 8y)vrd* r,wy..g6lbo vzo a concave mirror's surface, crosses the axis at the mirror's focal point before striking the mirror's q8w*6 g. z)o.b,dv 7rylkvdrysurface. 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 on a path throu d w(5msrxeo5)u -)pp;;z-af j qncb5fgh the focal point is reflecte5mcorwf55( zeb)p dunpa-;qj)sx;- fd

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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 uj lthrajt. lj 1b3r 16v78 o.hfnyg:.for finding the image position due to a curved mnfgo.. t3ahubry68v 1hljjtl .:jr17irror.
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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 g;iw4pjexo(( fvd vq+*wt1y9of a concave mirror, 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.+ ah+w9euj ph concave mirror's center of curvature. The image produced by the u+ hhwej.p 9+amirror 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 concave mirror's c .xko9-1m9in9xdft moenter of curvature and its focal point. The image produced by the mirror is locateo9mtmod-x 91.nxi9 kf d

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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 between a concap3zy cayz+* ji,opm11ve mirror's surface and its focal point. The image formed +,1ma3 c y1ojzppyz*i 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 sam1qwvxs l82b8 ke distance from it as its radius of curvaturev2xq8s l1bw8 k,

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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 conv1 --w)y fv4wc 1ehjk5/yurcdrex mirror, at the same distance from it as its foc1y-5c4k1 e c- w)ru/yjfwrvh dal 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 curved mirror you see a magnified image (a gr gzvag4.r7n i7eat big you) and sometii4 .nvrga z7g7mes 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 produce images whza. nq11 +py7if)s epdich

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Convex spherical mirrors produce erxs)n neg-3-s6.q sgimages 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 prv,l;l-ulr-( twwc * rdoduces 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 spheric eb-eh1(rku* nal mirror 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 mi4pn1 d2r gek1z2uslk*rror 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 positive, the image forlpn1w hzi7dg+v nv3(7med 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, the image formedu+-3g w9oubhw fj 0e9n z.sm8l 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 positive value,z2 dskt+k qi8 4,duzs: 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 ne cw5jv0 ez u d:muu:17txgl0(vgative 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 lar+4/uzgz r*nr3q e(fyy ger than one, then the image isz3u*g4 +r/fyn(y ez rq

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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 magnifica7gzjn+jn l6f i- ,r.tvtion is smaller than one, then the image is lr f g,jnn.7tizj+v6-

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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 to oniwv . 45mm(dewe, 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 fastes;bf 0 018ithfl ;vmuzit

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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 substan .+m0ju 5simspces, 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.hro:2+vd od/r)d kl i than 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 diamkf4yr co e+z*,ond 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 incidencxb43 k6.eauov e

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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 into a denser medium .t,yaleg c: z.p7 ovv0is 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 refracti bb.y6ftp ldq(kca-s: 8z 1cfjjv/ 2.ion 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(nfsay-- m3 ii is traveling in air, is incident 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 optics b xz y8zpy-v6,v.,( t gyrz*ccis 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 ncy1ajw)r/k5iy o++ginto 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 whichi;pr -ke4 ths/k8f n0c 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 thickea m;wf5 dkphcom /1f5x ,bx-*fst at the center 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*ecrm mu9xc0fo8n; l qv fa1wh-f55 0f 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 thickw7;4b+f ycqowtq nn41er at 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 that lens B is jyb,8gd kifuda+0.bs * p , 2unj7p2xtrated at 20 diopters, whereas lens Absb8fd tup 2jyn 2,k0.igju*,pd+7ax is 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 to the axis of a thin concav5rqpp7n ej4 0p0uh*oze lens, strikes the lens near its midpoint. After travelingopjrp0 u5e0ph4q* zn7 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 con xhs/gtz6 u50cj4fzt) vex thin lens, strikes the lens near its midpoint. After traveling through the lens, this ray emerges traveling obliquely to 4ctjht)z/ su05xzf6 gthe 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 ray9 :tmj8btonu -s for finding the image position due to a thin leom b:8tn9u-jtns.
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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 ltpr/fo w k/ts qmaz)w-. +6m.08qj bmzength $f$. 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 lenqlc,se gw+z h)( pp 9b.nn4wn:gth $f$. 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 lenga jl b2bycmhig:8 /pi9;t0+0a bf4oazth $f$. 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 leng lr5 /+clvs ewgt169hmth $f$. 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 fy)sczx dntio 8t07h: ut2k3m:ocal length $f$. 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 a convex l5c.3w mc tc8xmens and its focal point. The image formed is mw5xmcc.8tc3

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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 lej,h e(eqocqo045(i -o x 2qfllnses

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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 hrkn a:t)srb w/(v.r-:-yk w ustamp you see through 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 , yfs.p+q ioe9ohpn) ttpwa; 4(a;,va screen is placed a converging lens of focal length 24 cm. The filament of the lamp can be imaged on th+ eip; q ,9(ph,4y sw.top;an)faaovte 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 lelrc- 0s6xpc+angths $f_1$ 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 are placed i+1je kzry9t*p n contact. If each has e r* 1zypkt+j9a focal length of 20 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 withqhz 5) m.zr7j: 5ohgf io(3sqx an angle of incidence of ) qfz (.gm5:hsjohz3ro5q7ix$52^{\circ}$. 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 pn0ui4h9cim * ol+np 9blane mirror. The image formed by the mirror appeao4hc9unl+b m9p ni0*i rs 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 stand 0.75 m ino6/o da h t,cq7(t2dtm front of a vertical plane7q(6tm/td oh,c d toa2 mirror?

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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 appro :dxx4( ;keozmach your image when you approach a vertical plane mirror at a speedx; (mo:d4zekx of 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 mirrort )m:3b53dt j2 pcm jueacytbl8 lmoy4/8-,iy has a radius of curvature of 20 cm. How far from the mirror is the fadtl 2)jiyy tp, u3cymem84 m8bl 35o /tcb-:jocal 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 radius fy kdo n)+tz0n2gu3x 4of 20 cm creates a real image 30 cm from the mirror. What is th3zn on4y 02 g)xtf+dkue 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 mirror, and the image is ibm*gtb.r-(m3.0 cm in front of the mirror. What is the focambm. rb g*it(-l 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 ::pxw8gn2knm (ooi5 8jdua*lfocal length 3 cm. Where is thn8 npx* 2jo( :il5dm8 :ouwkage image?

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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 cm. An object is pbq5g g1t 9uk1pvz/ mq;laced 10 cm in front of the mirror on the mirror's axis. Where bpk z;q9vumg/1 15tq gis 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 o9tq0lc o47xbo x,;oklength of 20 cm. An object is placed 30 cm in front of the mirror on the mirror's axis. Where is the image locatet9o x 4koc xoo0bq;7l,d?

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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 tall, an*)guluzfukm lw +4 *c78xc y6kd 10 cm fromulum 6 c cug*zxkw+y kl*4f87) the mirror. 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 cs.)2v ezmxf n/ksoe/c kh 687xl -0jfzm from a concave mirror of focal length 20 cm. The object is 4.0 cm tall. How tall ie sz/l78j k-x.f2s zh0x6mo cn/k)vef s 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. The in*vws((5z zd ka-7 ioimage is 38.6 cm tall, and 14.8 cm from the mirror. How far*zk7a (os vwiin- d5(z 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 frx-9lqi: ys/g),g9wbxpha t aj r(;dh;om a concave mirror. If the image is 4.0 cm tall, how far is it frogplajb ,;-9qxr)s9 whyi/( ;txgh a:dm 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. :/eb uxzaq2k-The object is 4.0 cm tall. Waq- uebx2/zk:here is the image 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 mirro(2yhrr0ug1,a jjlslr 73l4b5 m kwqm:r (concave mirror), the erect image is twice m5ll0mhgr 71 rylb kwj:us4 j2(q ,3rathe 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 s /n7xfzf; .f1ju 8mtt tz)m3mbbnb19mirror. If the image is an erect image 1.5 times as large 3f.t )ztm7m8um;1bntb 9zf1 /b sxjnfas the object, what is the mirror'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 mir99 h4bvc7 u(zfnuo kk-ror with focal length 5.0 cm. Where is the objecon(u9vu hz4k9bk-c7 ft?

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86#
 
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 /cs*+*ek mrc5vw. *sqzc vi-h1y)tf iis placed 10 cm in front of the mirror on the mirror's axis. Where is the ir)iwq-t*/fcc es5cvshzym k+ iv.**1 mage 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 ltkmq -y (j8 cn)g)li0fength of -20 cm. An object is placed 30 cm in front of the mirror on the mirror's axis. Where is the image locml )t8n)jq f-0i kygc(ated?

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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. Thet c-o 4sevfm6 l e5hme0x0ev., image is 5.8 cm behind the mi,eml-e 0 m.ehvtsofc640ex v 5rror. What is 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 tall. The image is 7.80 cm tall, and 14.8 cm fromn,v/ n 1;k2fysuvd8au a convex uv;2, y1udvk/f8n nas mirror. What 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 of 1.50, what is the speed of light th - ds hh06 iii.;krw*tspc)fr/rough it.i6cpkr*tsh/rfshwd-i;i0 ) ?

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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 tofwi::zungpk:j0kqp c9homh9( rd ;7 ( glass interface 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 air at an an+i+sd t jum()tgle 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 qcp4zqn:( tjdk4oz:9ray 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 nx,.sstq;p . sis spread smoothly and evenly over the surface of water on a windless day. What, ..n;tqsxpss is the angle of refraction in the water for a ray of light that has an angle of incidence 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 of a still pond of))ozg 7hin9dp* cfh b5 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 refractni f*7 cdb9zg ho5))phion 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, strikes /g, vxg+.p3dfudcs+8oe xl.k a plate of transparent material at an angle of incidence of l8s,+. coe3 dxku.gd+g vxf/p$56.0^{\circ}$. 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 incident on a slab of transparent material. t0jn+cuzre;5,hxm: n The incident beam and the ref:t xjezh 0;nrm+cn u,5racted 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 of 1.46. Light is3uz7gwk /dlsv3ia4( 6njtm l) passing through it at 7klw m u34s(nadi6 / zl3gtvj)$53.0^{\circ}$. 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 fro5.0/vk 6sh ,oj/avjnmr+n35se ptakh m crown glass (n = 1.52) into water (n = 1.r/ evjjkaostv.kn3m hhsp /na5+06 5,33)?

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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 9c0)nxqkg8 is ma0wzmt81hj;of refraction of 1.50. What is its critical angle of incidencex n0 q1gmm hs9)k8tji za8w;0c?

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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 n2c 7ezecr) 3kindex of refraction of 1.50. For what angle of incidence will lige)c2kz rnc37e ht 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 i.uj)c e ofo(t h6fo6x-s 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 substance frowy*b s 5su+ oeyxs0b(:m 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 a diameter of 20 mm.*vgmy )qvw7e3b v8pcvn lr*-3 Its ends are perpendicular to its axis. Its index of 7cyq) **wgnm83r3 -evbvvlvprefraction is 1.30. What is the maximum number of reflections 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 in front of a 20 cm focphk:0 1tw-m :f0 73jbh xnuydual length converging lens. How far is the image of this object fro7 hj1u-0 bkpmhy0wnt3:d f:xum 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 lenst8 .ok +uqj5ae jdyh5kx6)5 tr with focal length 4 cm. Where is the rh 8aq5.k yktxedo) 5jt56ju+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, 4ry2)lkfaofx0n2k /p and the image is 4.0 mm behind the lens.xa0y)nlk/kpfof2r 42 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. c35ywm qrsq 2b;2 zk,h3j n:kxIf the image is 4.0 mm tall, how far is it from thkycmkxj q2 z3,3h:5nbwsr q ;2e 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 fronfoz3x3 to 2*2h-s iiwvt of a converging lens the inverted image is half the size of the objecttv2oi3x* ow z3 hi-2fs. What is 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 fl/ c39m eajjxap6(af,a 3nz*socal length 5.0 mm. Where is th* ,lz3 c/fmxa (3sejnjap9 a6ae 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 10x7ehopc8*m fgj/ a4 0f.3 cm from a converging lens. The image is virtual and 6.2 cmpg7x 8 c/oah04*fef jm tall. 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 q0v )dylio omdi/n9),f mde53jwg+;x 4.0 mm tall, and 9.0 cm from the lens. Hone dvd/0i9+) olqi3 jfmxg 5y,d m)w;ow 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 lens, it fortf;f8euj. 2pdx i-, tsbh.y 9mms a real image. When the object is moved to 40 cm from the lens, the imaged-b .etim2u,ftj ;x hyp9f8s. 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 ano qatcjxn3*qyw -fq016j t./ thin convex lens. The lens has a focal length of 10 cm. What are the values, respectively, of the image yown3 / -cntjtj* 6fqa1 q0xq.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 with a navb kgcqa7e-z/bl b7) 6p; :dq-ke0xfocal length of 10 cm. What is the image di/0qb7k:eqzd6vxp- 7cgb ea)ln ka;-b stance?

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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 foczc:e k.nm*- abal length of 10 cm. Wh:n-ezcbm*a. k at is the magnification?

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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 4.8np+ 0:*1r,9l qsck mqemznb +e cm in front of a diverging lens. The image is 4.0 cm from the lens. How talls*e: n+0qcr1 nkpb ml,eqm+z9 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, and is in front of a :uv yiina8 1d3y..eox diverging lens. The image is 2.5 cm tall, and 7.5 cm from the lens. What is thin d.yeo 1xa.y 38uiv:e focal length 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 ima0yzx 95xvtqm0kg xus;. 9xk+vge fost+.uy9kq x0 x0xk9 vz;5mxvgrms at a distance of 50 cm from 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 obw m7/t(yrva8t ject be placed if it is to form a virtual image magnir7y 8v tw/mt(afied 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 used in many 35-mm cnjp4dlp a591 bameras, must an object be positioned if it is to l4dpa5pj 9b 1nform 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. Whao a+3s(tpc51nc 5 ci.tb5 c nn7x5(efe oeus7it is the focal lengthb3ane7+tt ienu5n7o. c((scpoxce 5csf5 15i 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, aok/:0h3ovcez;ict -v2 zw. uxnd is made of glass of index of refraction n = 1.60. What is thex /vziuvo2 zkh:oe-.;t 03 cwc 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 madepsm( ;lbbnl721td 1xb of glass (n = 1.50) has a radius of 40 cm on the front side and 30 cm on the back side. What is the focb1x7np1 ld(bstml2 b;al 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 usi6nlp0;:r 4tjtax987r ,foey q chgfp -ng a piece of plastic (n = 1.70). The radius of the front surface is 20 cm and the radius of th;j7aq cfge t f po96y-l 0hntxr,4r8:pe back surface is 30 cm. What 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 focal length of 40t2as.e 7m78dia/n zg l cm. It is made of glass of index of .iaz 2nadg m 7/sle87trefraction
1.65. What radius of curvature is required?

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