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


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 expkn )r8x 053:j40ur+-zloz jynwj elsbosed in a camera is determined jybnkox+0j 4zn ljw :z0l5re-8u rs3)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
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The amount of light reaching the film in a came )trbet :9bk*4la+ thpra is determined by the

参考答案:    
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 may be varied by sliding +u59tqow f-p di1yf ,tthe lens forward or backward with respect to the camera housing. If, with such a camera, a fuz5, yopfq-t td1wfu9+ izy picture is obtained, 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 field (87ukq* bhe ksof view that corresponds approximately to that of normal vision is referred tk ue* bqh7k(s8o 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 images is wn(/+;dm zu kt j )dtdqih:s;1referred 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 wider field of view than that of ica :k)8pudgsm-7 :v bthe eye and through which objects apui:bmg- d)p:8 acvs7kpear 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 different from the human eymw 1n kkle3+ 4j-)hdame?

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
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refraction of light by thefph9jg m q5x g()4jmdxg2i0m-; ; ufmb 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 which8*q1,twsc,gesb a/i; ezwxr7 an eye can 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 3q ah -jgot,w)eye can see objects clearly 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 eyeball is too long from front tduzr nwc+ )hpjc4) ;/mo back, the person is likely to suffer from) jcn+pdu;wh/c )m4rz

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 cohw :l4qh0w(9 .bwebvtrrected with

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 too long from front *b o s.6gq; x4(bepg e3e/hmosto back, this gives rise to a vision defect that can be corrmso6(e3qep;bo*gs x/e 4b g.hected by using

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
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a person's eyeball is too shortybc 6)2 vk5jvt from front to back, the person is likely to s5 b2tvcyk )v6juffer from

参考答案:    
标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usually be corrected weu)x+ e; ncq0hith

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 short from frmqja/f3o pr9-;8 lwru ont to back, this gives rise to a vision defect that can be corm-p l3wu 98r/j;afrqo rected 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 isc. 3 (kiehys2p a magnifying 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 objectivn:lm63md a f3yvt o(0pe in an astronomical tele0ynvo p3ftl( 6ma3d :mscope 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 telescope. Suppose an ons-y7oxh .f9 fpaque screen is placed in front of the lower half of the objective lens. What effect willx.fhs 7fn9-oy this have?

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
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Assuming the film used has uniform nosg+lh2kw2( sensitivity throughout the visible spectrum, in which of the following cases would you (w k+2ohlgs 2nbe able to best distinguish between two closely spaced stars? (The lens referred to is the objective lens of the telescope used.)

参考答案:    
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 magnif .6(2xpy qgtqhication $m$. 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 tmqok:k9tdx. ts.(9n no see the greatest detail when using a 9:qxkkdn s9 n o.mtt(.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 suffer fb0)qq4d(hqox4 / owfprom

参考答案:    
标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffk6uya *swa+r 1b8 xumd569a rier from

参考答案:    
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 la((ln-qdqa(spp1llw60- c lrefers to the ability 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, what happens to its resolving powx2l9qhnv (:q asf-ub(er assuming that all other factors remain unchanged? Its- 9sb(fhvu nq2xl (a:q resolving 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*ig0ea): izqq j 2:p*zm6as lh diopters) will allow this person to see distant obia*gzqm:ia:l h* )0j2ps6 eqzjects 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 *kg( 2xjy9yu5uvd vc- objects more than 70.0 cm away. What power of lens should be g(9 j-yvy*xvuu kdc 25prescribed if the glass 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 wears glasses whose lenses hagbxdwx3c: /7 ei* 3qkpve power of -0.15 D. What is the person's far point if the glasses are very close to g*ewxc /xipk33bq :7dthe eyes?

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
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What power lens is needed to correct for9ix;g 1l gczv; farsightedness where the uncorrected near point is 75 cm?v;g;lz9ig1c x

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. She places rej4 xd*e41ev54hzy vqm ading glasses close to her eyes, and with them she can comfortably read a newspaper at44v*yj d5qemvhxz e1 4 a distance of 25 cm. What lens power is required?

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
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A farsighted person can read a newspaper held 25 ctlt)v*: h quna*j6f(mm from his eyes, if he wears glasmnl6)vha: t t*u( jqf*ses of
+3.33 diopters. What is this person's near point?

参考答案:    
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 vjnnpv2b(*mf 9 rque01 vrne,:(fzi(a near point of 25 cm. What is the magnification b(q(v0j*neez u9mivr2f 1, nf vn:rp( 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 a focal length of 10 cm. A persoz0 j 0dj,wf;m3 pq)p )(qjmvoqn has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused a fq) ,0v3;0zjq(m)dw qp omjpjt their 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
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 the magq*9*cw(d tyhnnification if the image is viewe9(*cwhqdn*t yd by 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 convergi8qjv:, .ac g;o efih;w .w,omtng lens of focal length 5.0 cm as a magnifying glass. What is th.c e;,;gqomwwho fvi.ajt,8 : e maximum 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 mag3 2s4,oqnppt gnifying glass. What is the magnification if the person's eyon3ps2 g4 qp,te is relaxed?

参考答案:    
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 focal lengths 2.0 cm, 4.0 cm, 8.0,d.aczlu4 g1p cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnification you couldd 1,a. cugpz4l 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 cm, and 16 m r0,wmi :4o1wo4p:1bdsl qje cm. If you were to use any two of these lenses to build a telescope, what is the lens separation for them1oe:prlb j:q,ws14 idomw0 4 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 b ef0pbi . o7bkf;3n)ilength of 200 cm and its eyepiece has a focal l;.be7 ofb0fpbk i3)n iength of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

参考答案:    
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 magnifigx :x1 27vloktv,l 5bfcation of 10. If the telescope has a converging lens of focal length 50 cm, what is the ,tx 2l5bkgv 1f7:xlovfocal 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 telescopem3m4 g fb;ph/m with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telesc4mhf3g;mmbp /ope?

参考答案:    
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. If the telescope tc td8*p4mio3d t, fn6ik +(gsis limited to a length of 20 cm, what is the approxip6+fcmki( t34*ntd,gt sid8o mate 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 and an eu/:qnob2zlf+h yl-o ; yepiece of focal length 20 qbnlfhz:2/ ;uol+ yo-mm, adjusted for minimum eyestrain. A 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 objective lens ofd+8c ,iqdcb8gjp.m.qi6 ae ,owpf*p : focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. What is the overalld,jb: .fe 6 .cco+pqp, pi*iw qma8d8g 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 3.00 mm and an ey .( b7emi8rwymgggv3u g*1r.iepiece of focal length 6.00 cm. If the two lenses arewvmugg3m gg*b.y ie.1 i7r8(r separated by 40.0 cm, what 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 barrel78.qow1dyu xkig,va - and an objective with a focal length of 817q,d x.8u- yavkwgi o.0 mm. 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 constellza ut899a h-e 4d,iaf zw qo.u:ur6jsa8ws*g7ation Orion 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:,*ue if8 sj.wh zgsu6a4w-q 89ta aarzdo7u9 (diameter) 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 resol qwrg *orr7:n,ve objects which 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 diam ,7rqrn*:rw goeter of the objective?

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
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 1.5 mm as 3 jp 37n6ugogwthe illumination is increased. By what factor does the minimum angle of resolutionngo67w gpuj33 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 Space Telesum:3s * dnkew+cope has been placed into Earth orbit by the space shuttle. What angular resolution could thisd3w m:uke *ns+ telescope achieve 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, 2026-4-18 02:01 , Processed in 0.295545 second(s), 132 queries , Redis On.