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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 images by mirb86.t hlw5tj:fltpta.b m/s. rors and lenses has bee5 jtl8.bf:. t l bw.ht6mas/ptn successful 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 6- qb- tiplkgghl+j1 3p88ova

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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 totv:byowzmg :rn0g dj5 e62s 0i 74-uwork 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 t( imw-s;an9od ,mpe9yhat 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 images whichc(qa g/nfop2:kh 8g p 5d;4awc

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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 u6 tw9hupd7u(pass through the image location, and would not appear on paper or film placed at that location is referru9u76 twhup(ded 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 iw*we6f+l7svcsyq;ua gb 5 45m mage location, and could app+5uyv;7wb* amcl 5wq4g6s sfe ear on paper or film placed 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 virtual i:-9qi vverho5ro(pn3,ch.8 oi kk u8m mage?

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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 r ,ti gv *ev5kw3 ikdb70 q3yiprr:l4)weflection takes place on the outer surface of the spherical shape is referred to awp ri k)kr57vydt0:qw3 4*3iiev l gb,s 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 plq:9u4sb kjo 0wace on the inner surface of the sphere is 40wu 9qoskb j: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 curvatut,rx f64q q8wore of the concave mirror is 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 r4m5+0je9lh d(na xtsmirror's axis, strikes the mirror's jdx(et4lm0 rn ahs95+surface 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 thel j)ym74rac yqg9ia3r *bpx 00 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 obliquelyh8wyh8*w9 1*wmwr usr to a concave mirror's axis, crosses the axis at the mirror's centmhw1w9w8*r* wsr 8yu her 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 th:l o.at/hty d2nx b-5ae center of curvature is reflecno:dx-2ah yt/a tlb5.ted

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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, (3 f iqntlltu 58h817hini5k ncrosses the axis at the mirror's focal point before striking tkiti5i3n qth7 nu(1lflh8n8 5he mirror's surface. 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 through the focal point is refw ) ry(te7fr sol+-powf1v ,a)lecteetws ()1r w,o7)afpl ryf +ov-d

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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 position due to a curv qe4i z7jmd ssi8/c8x5ed mirrorm /sxdc iiq7e5 48jz8s.
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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 mi ;kl+jkf6-u btccw /u4rror, 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 center of curvature. Theh 6eopav5dh m,*1/koi image produced by the mirror is locatedokvm/ i6a*, ho51phe d

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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'm4qwm uafd*z:+2n2/k *hap nws center of curvature and its focal point. The image produ m +ka4 :/zhanf*2qp2nm*wwduced 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 between a concave mirror's surface and its focal poi:guu7/gpn5or hw11hlvu+a/ y nt. The image formed in thu 7a1ghvu51ghu/lor /pyn w+:is 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 distance f1+kp 4thg4t fxlvo- j:rom it as its radius4tjvhgt + lp oxkf14:- of curvature,

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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 it as :bvex;3urps 4d;- vkbat 87cmev x67zits focalax6r :-bk7sv34tze vex7;cd p 8m;bvu 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 curvo;v: 8 6tlei da:u+qaped mirror you see a magnified image (a great big you) and sometimes you see a diminished image (a little you). If you look ;aap:o+8 u:i vdt e6lqat 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 itwqjt 00v*- pzq uf,js .54rbfpqd) 1vmages 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 produce ie1k sp ndf;c-6vy,h3 zmages 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 whichf k,2 urzgv0l5 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 ,.ab h/z .xnq, crevw k b7g-vuj-9uk3hyc g,.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 magnificati0ffa aho12;m3a 8i furon for 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 positive, the image formedvvx*u d j.lise-6.f j: 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 ima4/s2vzh jezex9u k, .wge 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 positive value,1(m 6jtlgp8eb1u )5a* kupd (r b7fwpc 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 negative valu6z +qyvay0htboxu7 *:e, 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 magnificatqpb8x ru(-s+bion is larger than one, then the image is+b-rupx s( bq8

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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, then0q5mg bn :4ijkey zcu3s:j:.o the image isj54 gq ::sybj0noeiz .c:k u3m

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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 magnificatio/azuj6r.2q 9;onzrqlxvk, c/ n 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 fastestz mbmfbr,bu7;v vy:c,t.cou jm*(7p 1

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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 substanceerh 7me,vki/1 s, 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 than one f3ave oyf:ep ) 2 wyn9dqw34x7+i2ardl or 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 ini(1.8( (hxufkcl ruk yfy w;8s $2.42$. 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 incidencefzab1a.q o-k7

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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 ijx.gngz8 wb /rp2xi26nto 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- b dun19nv3nzp ka2s9 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 traveby+3ys41r9y k ajs (mbling 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 ia*rf0 wtvp,+r uqf9f:s 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 watej-.9r dapkqs3 r 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 which lenses work u25ff:y utl (ais

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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 q2o+:a. ah2(xkz-2sqvw e s ayh-m aq7the 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 the edges+ ni6-s 6c9)cbxbpvup;y 9hh k 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 centfvpr .pb: exjgwt 7-p(w-8z;ler

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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 rated at xq 1xq1 c 4bap1qu),di 9wrxb720 diopters, whereas lens A is rated at 10 diopters. Tbr41baq),1x x17iwp cu 9qxqd he 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 f8i4 o (6pqm1ermv 2tfto the axis of a thin concave lens, strikes the lens near its midpoint. After traveling though the lens, this ray emerges travel( ot2f18mfie rqp 46vming 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 t,zxjz1 o5k z:rhin lens, strikes the lens near its midpoint. After traveling through the lens, this ray emerges traveling obliqu1,: xrkzo5j zzely 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 fin)nrkdj)en8cgf8; 5 t t p79snjding the image position due to a thin lef5k))d;j cennr p89tgn8 s 7tjns.
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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 l*yiy,nt (7p ppength $f$. 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 cqya5j :l- cwwsp:ar9ft6.c,qo/(uxlength $f$. 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 le mh109.6,p wrsz6zk 3brvr zuz0mtt e5ngth $f$. 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 fz2r n .pxs wdqnff(4)3 s60efhocal 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 fwoo6;yx w-r t9ocal 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 lens and its focal point. The image foc ud;z :m0 5izabpnlpz)yy*2- rmed 0bz) y y*zz:cu;dm-25alpp ni is

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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 concafky0y0. xf l*dc)/*o fs/rroave 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 spvcu )44qg)qsz1:w/t;h gos cee 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 lawgsm i06 g-ng7mp and 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 6n-0i gmw 7ggswith 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 fx+kt+4kv 5idtd+ddd 7ocal lengths $f_1$ 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 argr b*atoc; wk0fu a: j9qms25imvtg z *:j0,n5e placed in contact. If each has a focal length of 20 cm, how wou ti mn5 ofmrzjujg:k0* 2t9g:ba s*wq5,a0cv; ld 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 refle m,/kur/qu d 3(jskbf4cting surface with an angle of incidence of mj3kqr, /(u4d su/fbk$52^{\circ}$. 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 ofb*xywxm/ nh. + a plane mirror. The image formed by the mirrox hnm/y bx*w+.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 stand 0.75 m in front of a vertical pf: 8y3nqm/)1 is:nh 0ef9vo fr.f5wnp-f jlv tlaneylwnf:s3 i85j o vh:tff9r0 q)em1f-nn./fvp 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 approach your h/(g ksqx26 nd5v(fm r.vrgn/image when you approach a vertical plane mirror at a speed of 2r s/rk nq vvhdf.x/g 6(gm(52n 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 rad1;t :c+hgi(giupp,y olo f9 *yius of curvature of 20 cm. How far from the mirror is the focal po9y1 *fotl:igpigop, yh c;+( uint 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 ax /cm k8han*o3 radius of 20 cm creates a real image 30 cm from the mirror. What is the /*h8mkn3xaoc 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 imo(kh/if) )4j wzibc m0age is 3.0 cm in front of the mirror. What is tfbw)0c zi/ im oh()4jkhe 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 c wrzvq z69(is7lu* /nfocal length 3 cm. Where is th9wc7(rz * quv/slnzi6e 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 lm5fd mzql5 rw )5xx01qy28kal ength of 20 cm. An object is placed 10 cm1)m 8afrxd 5q zml5y qkxw05l2 in front of the 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 mirrorfv -vkb4j tw;dz/gku+j m.1:r has a focal length of 20 cm. An object is placed 30 cm in front of the mirror on the mirror's axis. Where it vw/z:k vj ujfrd4bmk1.+ g-;s 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 4.7 cm talwl f 8q5uavd3;l, and 10 cm from the mirror. How tall is the obj8 vwfql u5a3;dect?

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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. The obje jvdj(nwzmy8d837oj9 f9qm- x-ku9 dt ct is 4.-x9d(d3tm9vkm wq -8jz8y9n7jfdoj u0 cm tall. How tall is 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 image is 38.6 cm tall, and 14.8 cm from theqpux5z.be1a2+ e:v:ve u 5 emv mirror. How far z :ue:.ev5v abqv5xeem+u21 pis 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 mdm.p+too)+tat/ sx2q irror. If the image is 4.0 cm tall, how farado s) t2t++/q t.xomp 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 mirzf(h*y;)vbil(s* i u9n*n go hror of focal length 20 cm. The object is 4.0 cm tall. Where is the*sn*ifvhnz 9u*gil y(h o;()b 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 cosmetic4iyd(h9oi 7 ua mirror (concave mirror), the erect image is twice the9yh id7i oua(4 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 shavij 9orjm0g2s,h5wt 2ekng mirror. If the image is an erect image 1.5 times as large as the object, what is the m2mgw ,ro0je29kts hj 5irror'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 conca).tmp+g-y cn1nmi9 sozmc)c)ve mirror with focal length 5.0 cm. Where is the objecyc)i ct+ 1mmnmn-.p)cz)sog 9t?

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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 d nv/h*ukq0j.5rdty 6a focal length of -20 cm. An object is placed 10 cm in front of the mirror d 0hjvy/t q56kr*ud.non 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. uv.h14fa3 s k jrg7x:jh/x4vm An object is placed 30 cm in front of the mirror 4mhxjj4 gv7f13 :/.hakuvsr xon the mirror's axis. Where is the 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 conta:zn r v 387uys ele+e**sdo:( t-fwbvex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirve -ur aew7y * n st3(oe:zfdbs8l:*+tror?

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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 from 0) p )lmhfk/:p fsbh,na convex mirror. phf hfbls 0 p)n)/:m,k 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 spe;3mtuxqe+ )+twa fh7rp9 + mvtxr)w)vx 5jnt7ed of light througmfp)vurmv; wexrw9t txtjq a +37hn+7t5 )x+ )h 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 an4e)dnl9 r -i6 k ogj.7lwtzq/w6qswm2 air to 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 nyzi63;qazq0wclprpv,88k 9 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 awm7 8wdqh o+/xgfril as0.+pl up(.z;o s,0san 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.gmf tmdk x74b)sgqn ) 1/(d3hu0 cm thick is spread smoothly and evenly over the surface of water on a windless day. What is the angle of refraction in the wat(m1h s k)t7 fxbg3d)/nmu4gq der 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 stilrn/9v9 veyn6prmc. 4w;4o iyel pond of water. At what angle must the diver shine a beam of light towardnerpnm/4;ec . w49v 6yv ior9y 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, strikes a plate of transparent materi0rs+,5)liwn sv c/wcmal at an angle of incidence oln5 mcwc r,ssw)/iv+0 f $56.0^{\circ}$. 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 i.c yib)p,w s6ys incident on a slab of transparent material. The incident beam and ),wyc.6 spiy bthe 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 of 1.46. Light is pasl 8u+pirwo (6ising through it at (luoriip8 +6 w$53.0^{\circ}$. 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 tbhz+npd+3)wtw 6ac4 2a oi*kfq:lkw + raveling from crown glass (n = 1.52) into water dk+*36tpbwaz k)+:q hwoi2cfna+ 4 l w(n = 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 anga 8k7ga wp8 -2px:jljrmea*;cle of incidej8;a j:-apxp7ec 2lm k8gaw*rnce?

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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 wit nw ekk4j7+b8eh index of refraction of 1.50. For what angle of incidence will lkw b4jk8een7 +ight 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 meaddox xw1w3el h666ci8 k)tgaf n11dq2sured 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 from (wepxply fw+*tr0y*v btn4 )6air 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 di-b ,k(ko h3;ukup2el iameter 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 ku2bh 3ukkp- ;oile(, 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 r hly6 i,lo.f:of a 20 cm focal length converging lens. How flho6 rl ,y:.ifar 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 convergin3xdv9q5 yb5yqwy kb3.g lens with focal length 4 cm. Where is t qbdbk.5y 3v yxw593yqhe 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 :y30bygt/eyiq+ dr o kv:l+v-is 4.0 mm behind the lykg: ry03l/vq:vt edb ++yio- ens. 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 l(lqs5 i 1exdz:*2e 7l(j(1zerxs fmdr5,ikm4.0 mm from a converging lens. If the image is 4.0 mm tall, how far is it from the l:2 7xld,ezll1(ejzski1 mm(rx(i q*5de 5sfrens?

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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 invern4b0 19s pcvb3up-ctu tkz6 ,hted image is half the siztbcpsb 4 03n9 6vu-upzhc1k,te of the object. 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 focal length 5.0 mm. 6 7r5xus udfn(Where is the obje(d6ufu ns7xr5 ct?

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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 ckf2 ksrgdmn6f8vg 7-( m from a converging lens. The image is virtual and 6.2 cm tall. Whatdg vfr-kkm6f(82g 7ns 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 tay69njq3ds-0tzj9 tmp ll, and 9.0 cm from the lens.3n- pt9jmyjt 09ds6 zq 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 lens, it fogr8ipv 0x 1*unup+r;*lr: ouvv:*a bcrms a real image. When the object is moved to 40 cm from the lens, the image moves 10 co p ;b8:x lvgvv*uur rpa*r+ciu n1:0*m 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 v) x m1 vgo+jgf-nitqg 0-cg1:30 cm from a thin convex lens. The lens has a focal length of 10 cm. What are the values, respectiv1:g+-)g tx o v-cgv0qgj1ifmn ely, 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 wiby4i*8lklsi s: gs n85*ey/fith a focal length of 10 cm. What is the ie l5 f*8i snys*8gi/y 4:kilsbmage 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 -jueyw7 (i ;iqdiverging lens with a focal length of 10 cm. W -yiuqi(7 jew;hat 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 4.8 cm in front of a diverging l1y. yi3aufi-aens. The image is 4.0 cm from the lens. How tallu a- iy.ai31fy 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, lx2sp p.k-*mtand is in front of a diverging lens. The image is 2.5 cm tall, and 7.5 cm from th ksl. pxp-2m*te lens. What is the 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 . ebsz1(kjmz 6-wol( wdistance of 40 cm from a thin lens. If a virtual image forms at a distance of 50 cm from o.w swm(z kb-lje6(1zthe 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 v-c;::r e3 - 6j np(zzrodn ie.zlwv-ufocal length 50 mm must the object be placed if it is to form a vo-c v wr-v (z:p-e; 3i6zz.rue:nljnd irtual image 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 focal length lens, suujpj 5vbi86;s um( bu6ch as is used in many 35-mm cameras, must an obj6 pbj5siuu( vmbu8j6;ect 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 covnelrrqv.8.w d35* h3za /fa intact. What is tha n5rdieaf.v3wq*hr v/z8l 3.e focal 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 hasuw dptmb1,uaku)5r +)yh / ka8 radii of curvature 46 cm, and is made of gydbu+)k ru )ta,ph8 /5wu1akmlass of index of refraction 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 or5k imzi+9p1q w 7:icaf glass (n = 1.50) has a radius of 40 cm on the front side and 30 cm on the back side. What is the focal length of the lenqaip k7:w9+ m1ciz5ri s?

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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 fo;rsssl/lo/mp .r 7 k;)v 7gilxrmed by using a piece of plastic (n = 1.70). The radius of the front surface is 20 cm and the radius of the.oip r 7 lksg7xr/;lv;ss)l/ m 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 len qcd mg9bj4o53gth of 40 cm. It is made of glass of index mco4j359bqgd of refraction
1.65. What radius of curvature is required?

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