51fly国际课程 (51fly.win)

 找回密码
 立即注册

手机扫一扫，访问本页面

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp，上传完成后会在上方生成预览，用鼠标连续双击缩略图，或拖动缩略图，该图片就被绑定至本题，显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片，绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别

Switch to Full Screen

习题练习：Physics Unit25: Optical Instruments
本习题练习试卷来源于51fly国际课程 (https://51fly.win)， 为试卷打印版，您也可以在网站平台(https://autodiscover.51fly.win/)直接 访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。 访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 120，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://autodiscover.51fly.win/test120.html  教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。
 作者: physics  发布日期: 2023-05-01 10:00    总分: 51分  得分: _____________

答题人: 游客未登录  开始时间: 23年05月01日 10:00  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The length of time the shutter is open and the film is exposed in a camera is d k d+*uhtm8uz97/(qjyoyn zch/zb7e9 etermined by the+zy/7(qz*9ukbe7 o dchh9u zn 8jm/yt

参考答案:    
标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The amount of light reaching the film injd ,8o;v1 gkwhy 451xlndpjs/ a camera is determined by the

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a single-lens reflex camera the lens-film distance m xyxfl45n mi+5ey* e4k 5.psmkay be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained,pm s ky54x e*.e 45xli+n5fkym this means that

参考答案:    
标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that covers the film with a fielzw ohc8ey1.5 3plcd8 biv.gb5d of view that corresponds approximately to that of normal 5 ciew1p.bbz5g3.8ch 8lo vdyvision is referred to as a

参考答案:    
标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that acts like a telescope to magnify im2ior./ fn/. 4)kwjgnr px w9xfages is referred to as a

参考答案:    
标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that covers the film with a wider1omg:p 1g ju*v4rn1f e field of view than that of the eye and thougm*e1f1 jrvg14 np :rough which objects appear smaller is referred to as a

参考答案:    
标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In which of the following ways is a camera:o yec .jr9eve)68ujv different from the human eye?

参考答案:    
标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refraction of light by t zn -kt3vzdi:y ev5u;gre +sgt0d6o)/he eye occurs at the

参考答案:    
标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The closest distance at which an eye canxz ,,n(tor+ 65:oo1cn7xwipgnd h+iq see objects clearly is

参考答案:    
标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The farthest distance at which an eye can see objects clearlyd+v7 a2vqrkjb (61u8-up kzue is

参考答案:    
标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a person's eyeballtj9p6,ej3 xym0z5 udh is too long from front to back, the person is likely to suffer h6j,z93tpedy5 0 j uxmfrom

参考答案:    
标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usually be corrected witt-jx:apa, b68s:dgak h

参考答案:    
标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the human eyeball is too8(vs7 vxclz1 n long from front to back, this gives rise to a vision defect that can be corrected by usis(zvlxcvn 178ng

参考答案:    
标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a person's eyeball is too short from front to back, the wi)u9-zio* x-cnb73 v:pj yw operson is likely to suffer from*-zp ww)io93onbv yujci:x- 7

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usuall *99 ielmroizof) +fa6y be corrected with

参考答案:    
标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the human eyeball is too shox6 9;ig) hdqyf0r uqg4rt from front to back, this gives rise to a vision defect that can be corrug9y4hf xrq6;q )dig0 ected by using

参考答案:    
标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What type of lens is a magnifyuhvj8 1rs+t v: ;7z7jx1lxlsying glass?

参考答案:    
标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An important reason for using a very large diameter objective in an astronomij gx6kxf9xo8q ;h1a4wcal tel6x1o kha 84wgxjq ;9fxescope is

参考答案:    
标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider the image formed by a refracting telescoj:mdqiah m+0 d8ey9 3ape. Suppose an opaque screen is placed in front of the l3amdm+0q eidy j9 :8haower half of the objective lens. What effect will this have?

参考答案:    
标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Assuming the film used has uniform sk d 3ygzz/y .pp90pl;mensitivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely sp z0z39.ydmp p; pl/ykgaced stars? (The lens referred to is the objective lens of the telescope used.)

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A refracting telescope has a magnificatiole6 ki( 7vbw2in $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification?

参考答案:    
标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  With what color light would you expect to be able tml )d*5l2 wrkdhicrgc75i/ y .o see the greatest detail when using w *lmk.)2y55dihil7rccd/rga microscope?

参考答案:    
标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffqvp*h, qzf9 .ser from

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer f)ko74 audnk d(y* hiz3rom

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The resolving power of a microscope refers to the abilitye vf(w2 w97elk.c:(zbbgps*l(cql( *tjl( ui to

参考答案:    
标记此题
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the diameter of a radar dish is doubled, whaal d9a prc1c/9ho;cu 2 nr.;gdt happens to its resolving power assuming that all other factors remain unchanged? Its resocadrpuc; n2;o d1ah .cg9 /9rllving power

参考答案:    
标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A near-sighted person has a far point of 18 cm. What lens (in diopters) wil (+*dj1fpcr jpla l04zl allow this person to see distant o* a1pzc+lrldfj p0j4( bjects clearly?

参考答案:    
标记此题
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person cannot see clearly objects more than 70.0 cm away. What power ofjm hz/ox*uqel3n9f43 y5yr y/ lens should be prescribed if the gla ymq zf59e 4 ujnlo/h33*xy/yrss is to be worn 1.00 cm in front of the eye?

参考答案:    
标记此题
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A nearsighted person w**ybd ;r9wsz7u-u c fzd 0of6bears glasses whose lenses have power of -0.15 D. What is the ;b 6ud f-rz byod7*09fw*uc szperson's far point if the glasses are very close to the eyes?

参考答案:    
标记此题
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What power lens is needed to coaaf5e6lm h8r+dv62 jory9 : tdrrect for farsightedness where the uncorrected near point irfhrlyot6a5d6davm :8 e+j29 s 75 cm?

参考答案:    
标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The near point of a farsighted person is 100 cm. y+(pgqa ( hes +gn6j*lShe places reading glasses close to her eyes, and with them she can comfortably read asl*j q (nga+(ey6hgp + newspaper at a distance of 25 cm. What lens power is required?

参考答案:    
标记此题
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A farsighted person can read a nel.m-kt3g6kjiz2*:87 mn fl :hsatmkh wspaper held 25 cm from his eyes, if he wears glasses:mhma2zlj*fn: hi37 s-8 ltmt. k6gk k of
+3.33 diopters. What is this person's near point?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A magnifying lens has a focal length of 10 cm. A person has a nel 31jrr;pt2s far point of 25 cm. What is the magnificatip sf t;1j3rr2lon of the lens for that person when their eyes are focused at infinity?

参考答案:    
标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A magnifying lens has ajp:5m (icot*h focal length of 10 cm. A person has a near point of 25 cm. What mi:j c p*(th5ois the magnification of the lens for that person when their eyes are focused at their near point?

参考答案:    
标记此题
35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A magnifying glass has a focal length of 7.0 cm. What is th vfmq5jvzzlv (7;/e-.fp/n + gk jq;qxe magnification if the image is viewed ;( v7/qg k+nz/ x ;pqqevmv.jf5z-lf jby a relaxed eye?

参考答案:    
标记此题
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person uses a convergin27 mnf:brw9f ja,o6whitt a 09g lens of focal length 5.0 cm as a magnifying glass. What is the m,69 fj 2 nam:thw0abfiwr o79taximum possible magnification?

参考答案:    
标记此题
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person uses a converging lens of focal length 5.0 cm as a magnifying glass. *dd ht ,)brqh,What is theh,b) qd rh*dt, magnification if the person's eye is relaxed?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You have available lenses of focab z;zwude r(/(c u:d;zl lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a teledez(z wzr( ud:buc;/;scope, what is the maximum magnification you could achieve?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cceq.z sfw+: h8m, and 16 cm. If you were to use any two of these lenses to build a telescope, what is the lens separation for thfehws:+.cq 8ze maximum magnification telescope?

参考答案:    
标记此题
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The objective of a telescope has a focal length of 200 cm a,nue s .2d5 9s1boqzg+w kkb3xnd its eyepiece has azqe 9n.bo3dx us wgk1s b,2+k5 focal length of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A student constructs an astronomical telescope with a ma1 nuw)whf,s;n gnification of 10. If the telescope,swf n; 1hnuw) has a converging lens of focal length 50 cm, what is the focal length of the eyepiece?

参考答案:    
标记此题
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A student constructs an astronomical tele(x2kebsv2,eg8s1z hk ( fz+l ascope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulezhf2k2s1 (zxv g(,lea+8skbting length of the telescope?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person is designing a 10X telescope. Ifg.g mstg yn18erbu6 zsg() dh-,,nwb( the telescope is limited to a length of unhg t(.8)n,egs ,wd(-gbsbyg zm6r1 20 cm, what is the approximate focal length of the objective?

参考答案:    
标记此题
44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A microscope has an objective lens of focal length 1.4 mm aqz/ia9qn32ks c /z;p0pb4n ttnd an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. Atp49 t;20z sqb i/p a3znkcn/q blood sample is placed 1.5 mm from the objective. How far apart are the lenses?

参考答案:    
标记此题
45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A microscope has an ,l;w7kl45 .uwbj rexdr.vlo -objective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for miniw.4 7xr5dok e.jl;vb,w lulr -mum eyestrain. A blood sample is placed 1.5 mm from the objective. What is the overall magnification?

参考答案:    
标记此题
46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope has an objective with a focal length of 3.)hpfg9*y; z pf00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, wh )9*gpfyp;hfzat is the total magnification?

参考答案:    
标记此题
47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope has a 18-cm barrel and an obqz pq 4*a4f79phs 9mi4:fvjw8o k7mchjective with a focal length of 8.0 mm ho :zkf8497aw974s vpcqm h mf4ip*qj. What is the focal length of the eyepiece to give a total magnification of 240?

参考答案:    
标记此题
48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A binary star system in the constellation Ore.(aebuigik *6 3 opl(:12u y /n.tgkgvync7pion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest aperture (1enibvoinea3*7/u6yk(2p(ug g. cyl pg t.:kdiameter) telescope that can just resolve the two stars?

参考答案:    
标记此题
49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope is designed to resolve objects whiga. )3u a auz.rk0plfs) 1ud;7/kagqbch are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter of the ag .u0rba1ap fs7/.)u;g lda qzk3ku )objective?

参考答案:    
标记此题
50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pupil of a person's eye changes from a diameter of 3.5 mm to 1.fl q q:xa-zb+u xdim;jm-0*b2 80gfql5 mm as the illuminatiolx+08mqi-l d mafbbj 0q*f-; :qz2xu gn is increased. By what factor does the minimum angle of resolution change?

参考答案:    
标记此题
51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The 2.4-m reflecting Hubble du5mz 9ctd4 k5Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope ack4mzcd95tdu5 hieve if the wavelength is 500 nm?

参考答案:    
  • 姓名:游客(未登录)
    •
    总分:51分 及格:30.6分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题，此次习题练习共有 51 道题
    本平台(https://autodiscover.51fly.win/)支持练习，作业与考试(自动评分)三种模式，群组成绩统计排序导出，题目动态变量实现同卷千人千题。
    如果您对本系统感兴趣，想加入我们或者想进行任何形式的合作，请加微信 skysky1258

    试卷内容到此结束!   © 2026 51fly国际课程 (https://51fly.win)版权所有

    浏览记录|手机版视频|手机版试卷|使用帮助|51fly国际课程 (https://51fly.win)

    GMT+8, 2026-6-6 08:36 , Processed in 0.454561 second(s), 132 queries , Redis On.