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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 mirrorsu sc i4.g.c.xov, fxu( and lenses has been successful describ,4.vxgico fc .(.suu xed 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 incidenct6 u4oh b(54rmvx op2ue

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principle on which mirror icr*8pn2dypa cz1azca.5 ,n/yzv. qdxu02 k 2s 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 s b519rfhi72b--imjnp 6wjgs; swp8 pmj: z o7that 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 imageyz; 4tce:tm +q6g fn.b5/ yx zavg/n0rs 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 yoyl3g siy ;/zz k4 11izw e9k2zk1,zflight rays do not actually pass through the image location, and would kylk19siw kzz1 ;,2yi gz /4yzze1of3not appear 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 ray8wmdt- o9 rmwosr7w2l:z z:, 3tzug z;s pass through the image location, and could appear on paper or fr 3 tm;ww9zr2 z lz :-wmo7zgstu:,8doilm 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 imag:nor1 g.- y6 tfpg5ihke?

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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 place on the outer surfaco 4 85l6s8dkqxib5o6a006jadxx ib5l e p gm8qe of the spherical oixb45o qp g8i6 5 6dqd0 5lxxmse0aajl88bk6 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 r7.w2mn6)u mpd iaord- eflection takes place on the inner surface of the sphere is referred .)7d muipn2dom6raw-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 c35w3uf g: c..x/gzkmpssfn 6of 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 mirror's axil fey+j 7ofz:2s, strikes the mirror's surface near its 2z foj f:ly+7emidpoint. 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 tced,bdx5 4x2bup/m 8reflected

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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 :wvq xbua0.q*7stx8i.hxt0 rkm; p0l obliquely to a concave mirror's axis, crosses the axis at the mirror's center of curvature before striking the mirror'bix.x pqu 8ttw0q0 7hv:x;*0ask.l mrs 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 throuexg de ww;q4. * (ot-npl 8wpl:l9;czwgh the center of curvature is reflectw8wz; .(w4ctw; x*pqp nl9eedgol l -:ed

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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' xhnoe,0t6sc i2h-mza34 o r/ls surface, crosses the axis at the mirror's focal point before stro0e 3ir hzm-hxsol 2a tc6n,/4iking the 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 tsu+.hiuwu) klrd(9j a u1w3,a d2gs7nhrough the focal point is reflected2 us3 7 juuskrn)1la9,.hg(iw+ wdaud

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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 imaga (fsqw)tcd +cmp1r ;r ;4cvddq*x5xupl:b71 e position due to a curved mi4(t a 5rm1xduqbwvpq)c:sp r+ xd; dl f*7c;1crror.
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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 conc+2m,m3wi+bvw 1ateg s t7w ,clave 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 concave mirror's center of curvature. f tn4- kyoa:0x The image producey k:ao04t- xnfd 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 concave ;,rd5 v-s8k9lfgozav96 ct bwmirror's center of curvature and its focal point. The image produced by the mirror is located8,95-gsf6ko lv9dbav;wtrzc

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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 mirrzoj2 x- eom5t(tv d6uc(g;1mc or's surface and its focal point. The image formo-(tg mcc(xvtzu2m1;jde 56 o ed 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 distanca1m a8xgq/9)a)fgr4t x l eup-e from it as its radius of curvatura4pe/a xurlx )q 1gf) -9amg8te,

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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 its7y 1*anlh pql se(9a;h focal1 7n aephlqly9; sah(* 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 im+- grjx 7uq uclqf8o3c8 b;d5bage (a great big you) and sometimes you see a diminish5uxbg+ 7 ucqo8bj8r3lf;-q cded 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 mirrorsuslvab e kj*.;m7w /)q produce 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 pj4 xqa8mkfgeh /q-n)s s9tm 11roduce images which

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A single concave spherical mirror produces an image whig6d.ixdqps3pcn ;,. wch 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 mb. +a:wovqp7r irror 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 +ofwdnm i++c07s nc)v-ch n7cmirror 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 imagpl(j34qg faap;)x p m/e 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 np :e5jsr0 zi o 2bpnb1//o4mcaegative, the image formed is

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the magnification is a positive value, the 9fn34u8pjbl l n0 7lr,wd pil6image 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 nega*/ 6ntt oqpbi/ru: e2q2a7 hoitive 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 lacb/pv7qp pb,vt(+* qw rger than one, then the image iswpv+q7tv/bqb, p( pc*

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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 thaaxr0k sk 00kepd4h/*f n one, then the image is rks0 he0fa/ kxkd*40p

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the absolute valuu:9q awbl ;7 ipk.c0wme of the magnification 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 fastes oe6xu*k,nzrzk;51 eyt

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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 substde 1m k56j3q1twd8ict ances, 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 for a m/wb1dl +x .wd uqe:m)iedium 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 i+0vzimn6 380nq.rfmoo hc dz 56irk)ts $2.42$. 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 incidenc9v+ 4jo 16jtjar.s /v kga0aaie

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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 in +.zp3/b6 gb grayls1nto 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 wavhg/q1vet2 4 eter. The angle of refraction will be

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A ray of light, which is traveling in air, is inci qva q9urk-i4st(a ;i2dent 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 fiberhm/k; v3 hzja vq1,/ur optics is based is

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The critical angle for a beam of light passing from water into air is89-yf3r q pr ofs6a5f9u8coe 4 teuif* $48.8^{\circ}$. 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 wormz,:.5zyeaom qd+w k;)6jf w5:zod fnk 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 p )n7m5ymrfk,s nk* r)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 the edges kiaq: *ad2kl. 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 thic/od(u 27qzwao ker 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 exceal y-pvi) ihr(4 7m;mc(mj t0ept that lens B is rated at 20 diopters, whereas lens A is rated at 10 diopters. The fmp tm ir)hjmyvleic7 0((a-4;ocal 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 paralle:w,4 hd(ubq ajl to the axis of a thin concave lens, strikes the lens near its midpoint.ja( ub,qwd4:h After traveling 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, strikes the0 r rothj6rlq./5rv+j lens near its midpoint. After traveling through the lens, this ray emerges traveling r q6tv.j/50rh+jrl orobliquely 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 positikm,pr0osa; o)4kq t3 von due to a thin lens.0p;oq s3t4,kvoa)r mk
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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 focalfk ih1qa k51t5 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 focald8+soho 3)h xz uv*l vn.;p1hx length $f$. An object is placed at $f$ on the axis. The image formed is located

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A convex lens has a focal length p(i u(di)/dq*lxhv -3p ,rvwu $f$. 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 4 b;n cg5dhuqrlk68 (3l b(zmolength $f$. 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 ll0m n th07rze-ength $f$. An object is placed between infinity and $2f$ from the lens on its axis. The image formed is located

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A object is placed between a convex lens and its fo ey/;yfblr:o 9cal point. The image formed isy;o9 /lb ryef:

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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 th pyhd5br:x y*4. iktk+ll;.concave 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 mag x43vusw6t1tqjha -m.oc7p7 k nifying 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. Bet9n 2y v 0dfrh.q5wtm1bween the lamp and the screen is placed a converging lens of focal length 24 cm. 1.0 wrtfn9vd25 bhyq mThe filament of the lamp can be imaged on the screen. As the lens position is varied with respect to the lamp,

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two thin lenses, of focs)s6vfqh*4 q zal 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-conyubs:ma9c 72nvex) lenses are placed in contact. If each has a focal length of 20 cm, how would you expect the combination to funcm cu9sbyn7 2:ation?

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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 surfagts. .752juk sfs)nb wce with an angle of incidence of 5wt 2sbjk7us ) f.sg.n$52^{\circ}$. 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 mirr/m* r wfi6dc3mewy7 unbvp7+0or. The image formed by the mirror appe rmy+w7um ef73n6wv /d0i*bcpars 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 fro,mrobfdy /l8p e03l) znt of a vertical plane mirrorbop0z3),ry8 m /lel fd?

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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 mirror / :7mm d * ks7j/)tegk0ewvtcmat a 0:g ve7mscdtmmw/)jkt7ke /*speed 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 mirror has a radius of curvature of 20 cm. How far fdp( 9z+kyz;rbf z83 tarom the mirror is the focal r;z pfdzt3+ z(ak8y 9bpoint 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 of 20 cm creates a real image 30 cm from tzc j0r 7s.1htf ehu7q8he mirrcf 07 z8urej7stqhh1. or. What is the object distance?

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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A object is 12 cm in front of a concave (:u10 c 6hptqr ah4tw4aza6qkmirror, and the image is 3.0 cm in front of the mirror. What is the focal l1qk(6rqaha4act4 pw 0z uh:6 tength 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 juspqdh-.ud /. - m1lyconcave mirror with focal length 3 cm. Where is j p- duu1.qh /sy-dlm.the 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 l2*qf3-h y-unsqkenbq (z/0 flength of 20 cm. An object is placed 10 cm in front of the mirror on the mirror's axis. Wheren (n/ f hsu-qy-fkbe0*32qqzl 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 focal2l k)gs(+9 nj2eplrnf length of 20 cm. An object is placed 30 cm in front of the mirror on the mirror's axis. Where iln(p2e)l2 +k9nsfgr js 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 mirroht7jb/7 u;lm8orc u4pr. The image is 4.7 cm tall, and 10 cm from the mirror. How tall is the ort / 77mopb4;8lcujuh bject?

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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 objecxw+/,qtq ,im.h 5wj pmt is 4.0 cm tall. How tallm,hwq w5q /xj mtp.i+, 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 cmr8k q 1h62gzyb from the mirror. How far is the object froh861b y rqkg2zm 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 4qshjz g8j85 u)c:) ziu sv1w1h.0 cm tall, how far iu 81gq8c1wuh z )s:)jsz5jih vs 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 from0cn.s 6qg v+ok4v0odp a concave mirror of focal length 20 cm. The object is 4.0 cm tall. Where is the image located n+vod4vqkcg 6sp 0.0o?

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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 ofejxb/ e vb.::, 6b*6meiswkn l a cosmetic mirror (concave mirror), the erect image is twice the size of the object. What is the focal length of the ns.lmebi:,kxb /:w 6j*vee6 b 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 mirror. t8uc8 o/hv suk2es1c2 If the image is an erect image 1.5 times as large as the object, what is the mirror's focal l/s ue v2 schc8u218oktength?

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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 le l ;gt9buuc:su-9whw:ngth 5.0 cm. Where is the objl:9:s 9w-huc t;gbuuw ect?

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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 is placedyes98o oqo, :nx f9wij7 xj(b( 10 cm in front of the mirror on the mirror's axis. qes(jxonx i9j, (7wo9oyb:f 8Where 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 focalned6* s, ij26*n ltxax length of -20 cm. An object is placed 30 cm in front xsij6 n ed* *2n6a,lxtof the mirror on 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 convex mirror. The image is 5.8 cm behd4ip 4-eu1drnq k :qn*ind the mirror. What is the focal length of thip:q4d-nu edn*qr4 k 1e 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,dlw t99idf c2bz)0 lx6 and 14.8 cm from a convex mirror. What is the mirror's focal le6wdzfi9ll9cbd 2 )0 xtngth?

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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/jzgu+r.d r5w qzyu+ckn , 36m speed of light throd6uucyq.nj+z krm5 z 3 /gwr+,ugh it?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A light ray in air is incident on an air to glass pb9b9ow-q7g kt8xp); hyoa m5interface 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 +81x uffkisy q-ov; v2m 3a6ovfe(v- ec9h+buangle 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 incomi:49abdpd m :f0sw *rxhng ray is at an angle of $17.0^{\circ}$ to the normal. The index of refraction is 1.33. What is the angle in the water?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An oil layer that is 5.0 cm thick is spread smoothly and evenly over the sudbp3)c(o y+ ihrface of water on a windless day. What is the angle of refraction in the water for a ray +dcybhio ) 3(pof 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 .n aspu.ly2 +xstill pond of water. At what angle must the diver shine a beam of light toward the surface in order for a person on a dis.pxua.n s2 ly+tant 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, traveliacg04-b49 dqj.o: gf h*xowinng in air, strikes a plate of transparent material at an an -c4gxdfai:gbo9n . hwq*o4j0gle of incidence 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 ag+vs w ;ww; qtz95s*2 hxal:xuir is incident on a slab of transparent material. The incident beam and the refractex;ushwvl2 sqzwa9+w*;t 5:xg d 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 passing through it aticf/ 1g9l0od 2dfymp8 d/o10g9f c fplyi8d m2$53.0^{\circ}$. 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 fro ;2e81pyo 2rf rcsm3kx ng)rp-m crown glass (n = 1.52) into water (n = 1er 82 p;r1yxr23)mkocn-gpsf .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 refractionybyy,+ o da ;i7.u3y 8sx6rzra of 1.50. What is its critical angle of incidenauyry3 y+i;d8y7b.zao x6, srce?

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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 5g2osyviz(a g:s ( g07eubh6o 1.50. For what angle of incidence will light remain within the7iogvyhogs(g u052 :a (6zs eb 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 measured k3n7xw 9e cvl+bdit )nej98*t 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 ai5u3q0 tkk17b0yjgit f r 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. I)2 c ;f93ghqmwga ysk,ts ends are perpendicular to its axis. Its index ofgg,c2fmysah3q) ;kw9 refraction 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 focalj3hyf32;*k 3 lqn lbhs length converging lens. How far is the image of this object from the ll 3ljqhn b ;*fsh332ykens?

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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 leng fiw ffp3zz0z +v9m-*s with focal length 4 cm. Where is the if+v-3 mzp z9*fgiw0z fmage?

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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 q hqv gp;55,j+hlhj3kthe image is 4.0 mm behind the lens. What is the focal length of th;jhqhlp 5 kjh,5g 3vq+e lens?

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108#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-mm tall object is 4.0 mm from a converging lens. If the image is 4.d f /pwu;flg+ l;mu gvf4zip77(uo56k 0 mm tall, how far is ip ldp+fgkum7zvo;(uf li5 7fw /4g6;ut from the lens?

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109#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an object is 40 m in front of a converging lens the inverted image im6 u)amb4 :p:hc0 fsihs half the size of the object. What is tbsi a0 mh4pcm)uf h::6he 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 fronhjz5 b8pt/l*o; 2o pqdt of a converging lens with focal length 5.0 mm. Where is tot 8jpob5 l*;/pzh2 dqhe 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, a-f *cq3w+i+rkd*t-l rm. uscond 10.3 cm from a converging lens. The image is virtual and 6.2 cm tall. What isf tc- uq wi+ *c+rm.o3ldk*r-s 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 a*pi hjma d+1t7 zqy0)mm tall, and 9.0 cm from the lens.zypaha+j7q01t*i)md 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 pig0qr(j*.3,x ngis w a converging lens, 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 i30ji q.,w(*p gr gsxnfocal 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 k/c;kp:yx 8b1hug q-bdistance of 30 cm from a thin convex lens. The lens has a focal length of 10 cm. What are the values, respectively, of the image distance and laterak;xckhp 8bybu :/qg- 1l 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 au l;b+ 0(py, 2fgk/gs ceuale; diverging lens with a focal length of 10 cm. What+ c2lf (a /0gsep ,;u;lbukegy is the image 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 8v okapojl*8vqbp:*w 6:.xtz length of 10 p8*obk*a :ozxq.:jwv v t68 lpcm. What 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 nwvq m, o.i5a:ilx nv0ia;9(v cm in front of a diverging lens. The image is 4.0nm:voq ,vii(.aalx viw 09n5; cm from the lens. How tall is the image?

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118#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object is 6.0 cm tall,+gt6a5gpt;oxw:f2 3njuu x 6 o and is in front of a diverging lens. The image is 2.5 cm tall, and 7.5 cm from the lens. What is the focal let6 t o5f+axuxg6 :g;3wnp2joungth 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 atcg / u,j/ c(t*edrt.fd a distance of 40 cm from a thin lens. If a virtual image forms at a distance of 50 cm from the lens, on*cgj et//fctddur., ( the same side as the object, what is the focal length of the lens?

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120#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How far from a lens of focal length 50 mm must the object be pla j 4pvce4vxopcmp10- 1ced if it is to form a virtual image magnified in sizppep1x v4v4c01j-c m oe 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 pwbrc +2af )vw 7(6tgrin many 35-mm cameras, must an object be positioned if it is to form a real image+v6 tcbr7w2 p)(awfgr 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 lengol ga/qs4eu. .2:il.obep/ dmth 20 cm, are placed in contact. What is the focal length of this coboidee/mqllog. .4s/ :2. apu mpound 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, k l)6:d,4vhimhru)k p and is made of glav:lhrkkdp )i 6h) u4,mss 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 of glass (n = 1.50) has a7 i)bgdy/og.lfj ep4lsbf73* radius of 40 cm on the front side and 30 cm on the back side. Wlb p74loj) di7*gf.egs3y/fbhat is the focal length of the lens?

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125#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A biconvex lens is formed by using s/ s4s jw7hoifv*c- qi1pzg, :a piece of plastic (n = 1.70). The radius of the front surface is 20 cm and the radiusipf:4q 1-,* hizj7sgvs/ so wc of the 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 40 cm. It is made 93snpy8 y bh,ul0 e.v55rbv6gi nw 4bmof glass of index of r bv, 0nb.w3yb59gs54ny86r iplm veh uefraction
1.65. What radius of curvature is required?

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