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 ey;dg;a1zxh , film is exposed in a camera is determinedzhgaxy;e ;1,d by the

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 reacz;0s qpzbbr 05hing the film in a camera 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-fi 87/n72ps)ipaj d3xj+5aewi ona olg9lm distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy pi a+7jn9ppdn5 w oaio i3 /87sgea)x2jlcture 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 f*eq st3 bq;lc;ilm with a field of view that corresponds approximately to that of normal vision is referr;*q eb;sqc tl3ed to as a

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
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 iyy q+t l4r)c;vs referred to as a

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
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 y g5mt1h9-a c*ug7cd-, zblrn view than that of the eye and thrt1r,*-9c am57 lcbny dghzg u-ough 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 way u.-uldp,ri.-j*bot.a. xcnn s is a camera 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 lightlhssbg/2ehj,g+ z* hpy5v(p 8 by the 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 which1qmhaq p b*7r/ 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 eye can see objects clearltkn1 4d sf1q4 3zxt6t/m* ugoby 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 to back, th:pzn( v5ons;eedpp we0;h 2z.e person is likely to suffer from(po esdh;ewzp;nze: 0n 5p2.v

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 us;br9lbs r9jr7 ually be corrected 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 lonb0l,n28m/0u vchgg r2t:m dlj g from front to back, this gives rise to a vision deflt,8:2mdh0rg2uvn m j c/g bl0ect that can be corrected by using

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 person is li)p8oef l)f0bgbu x2o4kely to suffeuo 02)4pxbf)e obl g8fr 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 us;2/ 2qvukbto h8 l(ymsually 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 short from front to back, this gives rise to a visioxi-tup (sq(q+-q (stpqxi(+ un defect that can be corrected 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
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What type of lens is a magnifying d-i)pu svpn57 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 ast/1oig 3l:)km( v 0r*agnl4piu ef,nd wronomical telescope g i*w/ok,gfr ve(a)lp3n :40nim1 dulis

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 58 jm;dfxk:*oxybjhqq 1w(*il nu2y,opaque screen is placed 8,jyo xufhq;wiqkyl*mx21 (*:dj nb5 in front of the lower 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 sensitivity throu0.46 ditncz xkghout the visible spectrum, in which of the following cases would you be able to best 4nix 60.ktczddistinguish 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 md ) 3itsma1a,g0osp 6magnification $m$. 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 to see e-e4x s7 jjxn)the greatest detail when using a micr)7jxxe-ejs n4oscope?

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 frt6n)88k2(xbmkdd.u7ar08 y oatu e mh om

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 suffer fe 5/q- 6qnjsedrom

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 refers to the abilit +yinyuj8 *u2v m;p1okkc x)w5y 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 tocz1kg iq(07f tb:3uldd* m o hryx5k90 its resolving power assuming that all othdu:b 0 li91ohkk(3mrx7g f0ct5*zqdyer factors remain unchanged? Its 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 z:g8m xr 0w1q3:nlmi5-tfhtn90 lntfdiopters) will allow this person to see n l03mx:g1t-nlw0ff :zhr tt89nq5i mdistant objects 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 t 6, :gcpok,q3nh.oractr/d -away. What power of lens should be prescribed if the glass doc/at :.,cht,o p kn36qr-rgis 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 have power of -0.1j) z)jsnm )j-- )jfich5 D. What is the person's far point iz) jimj j-)) c-fh)jsnf the glasses are very close to the 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 for farsightedness where the uncorrected n phu(s6smm8g 5v7m.g)p rv(ztear phgvzm 6v rpm8u (ts.57gp(m )soint is 75 cm?

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
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The near point of a fars0mspm,5+ sv )qp rapa)ighted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. Wa5p+ r0mq,apsv )m)pshat 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 cm from his eyes, i-pdl9s(6h3j/ a de p6 o9qzkgff he wears glasses of q-dh aoep9 6l 3/9kzp6jfgs(d
+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 or ysfny/:+0s+ut qehy9(jf *a near point of 25 cm. What is the magnification of the lens for that person when their f ot0yy*ynqh+9:s /frj sue+(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 (gg7tjicv2dhf,o6( s3b,du kcm. A person has a near point of 25 cm. (gt suo,,b 7ki26gd v dch(3fj What is 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 t e +gheovqtno, r82e ;6id6( gunvc;.7.0 cm. What is the magnification if the image is viewed by a rela c(gt.q;d62tnev hnuvr8go;+ eeo,6i xed 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 converging lens of focal length 5.0 cm as a magnev9 45z i5bw kfy7z6efifying glass. What is the maximum possible magnificativfw9fy zk57ez e56b4ion?

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 glasj c7l,1s4pc fes. What is the magnification if1lcf cspej4 7, the person's eye 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 cm, and 16.0(/ l 5kuqbph:a cm. If you were to use any two of these lens(/pb kaq5 :ulhes to build a telescope, what is the maximum magnification you could achieve?

参考答案:    
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, an,l:b9yjr vn ))0 jovvcw; uss4d 16 cm. If you were to use an); wsb:n0jv c,l)sro4v9ujv yy two of these lenses to build a telescope, what is the lens separation for the 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 teles;vjt pq6-la1cjvglzo6): m1o cope has a focal length of 200 cm and its eyepiece has a focjq g6zj6olmtv;1p)-o: al v1cal 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 a8 r1,gm ru ffm1v;l+vq magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal lqg ,mrf81 +1 ulv;fmrvength 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 telesco3z bhq xhghf1-x: da40pe with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting lengx1d-zh xh: 04g3 bqfahth of the telescope?

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 is limited to a length h1,feib1ewz6 jp3wz 3( x)u drof 20 cm, what is the approximate focal3)rjzu(,xb6di31w 1h eez fpw 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 f18mds2ls -ud mocal 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. How far apart are the lenses? -msmsdl 1d28u

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 of focalkwsl f/7g b2ly xd74w w;w4ya1 length 1.4 mm and an eyepiece of focal length 20 mm, adjus4by y74wks /wwg;fla x 72lwd1ted for minimum 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 3.00wcx: ,w3glgujv7; oy1 mm and an eyepiece of focal length 6.00 cm. If the two len w 3gl:j c;yvw7uo1xg,ses are separated by 40.0 cm, what is the total magnification?

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
47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope has a 18-cm barr23dmy2g-envy+ n3fx jel and an objective with a focal length of 8.0 m +2ymvfn -gde3x n23yjm. 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 Orion has an rfk 2y f;q3fg2;9ctqm angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the sg;92 3 ktf;q2 qrcyffmmallest aperture (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 resolve ylyq44t./6 py9diww fobjects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavele.dqwypw44l6iy 9/f ty ngth of light used is 550 nm, what is the diameter of the 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 eylbb3d31dso -xd/8g **2 d 1hpsm )smqvn5dojf e changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of2s /*dhl d 5 ns3v3bddbmq*o-mpsj)xdfg8o11 resolution change?

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
51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The 2.4-m reflecting Hubble Space Telescope has been placed into Ea)mv qt( ds ng24ifq9*mrth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength tvq(ms24 mq*9idf n)gis 500 nm?

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
  • 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 09:38 , Processed in 0.366734 second(s), 132 queries , Redis On.