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://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://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 wa s6 r,:mf4pex;j4et shutter is open and the film is exposed in a camera is determ at;:f,x4m ee6rw4pjs ined 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 reaching the film iqeehcr:yf7j5 w j+*,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-film distance may be varied byyjnzfx(t9119a qa ghp0b3 mj 3 sliding the lens forward or backward with respect to the camera housing. If, w193y 1n 9pgbj x0m jafhzt3a(qith such a camera, a fuzzy 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 of v)c,0e nk;zygb iew that corresponds approximately to that of nor,g0;k zcyne)bmal vision 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 t kmhzg 4nk,/g8o magnify images 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 wider 5s h97j*whf hyzeusi- .d9pq 8field of view than that of the eye and9 -diyp5q8fh*es97hszw.hj u through 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 2 (4yekbm6k+wwq,zzk 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 light by the eye occurs pt7 -i ni.wz/;ewp6k (jit5byat 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 can see obj.v82dy:bh nbmldy+st+ px) 0ek0(yob ects 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 obj:9b.p ptou g2vects 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 to back, the person is likely to suvppox0l 66-qsffer vpo q60sp- x6lfrom

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 2 h tth r0rpnpv)rm8i2m1f91vusually 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 isd-e7zm2 *gh6d 4eor4cwne v0d too long from front to back, this gives rise to a vision defect that can bedde z7vh -2grw e64nmde0*4oc 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 g48fi51 b mr- olbcm/bis likely to suffb 1gfib- 5r4o lbmm8c/er 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 correchyiu:- rk5dyldwfya 7 2)7p+cted 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 shod a+rf9cnclg d2/ 0x)yrt from front to back, this gives rise to a vision defect that can be corrected by uy+dxgd cr)0/ 2f9 nlacsing

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 magn8n-1,yy lstz jifying 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 objectivejm7 mgv )e)dc;m vcu8x/wol.qdr,79u in an astronomical te)v8.m)/ c,wxjd;elgmd9c rou um 7v7 qlescope 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 te (twec :r;nx ; y:ov7mh,knn1elescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effe m:wv7hn:net,ox; 1kr(yc en ;ct 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 throughout the visible sp9tbzig .c(n. jectrum, in which of the following cases would you be able to besti9n(..jz ctgb 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 magnificatio 17ckei m:tz-g7hala*wa4o8 an $m$. 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 ,*tbn.x, taxu the greatest detail when using xt ,t*a,.uxnb a 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 suffex j x4:r ronup(jc-h:wq+)(:e:pg cgj r from

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 cbg.l-t6e-sms m(d+rom

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 tk;s .8ku2sa wto 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 resolvinghv p15cjfpo-8vd *q2s 63yyjx power assuming*683dxy-yq vjjc sp 2v51pofh that all other 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 7nvf6p 7 g8f:k5cru lzhas a far point of 18 cm. What lens (in diopters) will allow this person to7u pfcz n7g:f568k rvl see distant 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 cleojbudgbaf 19(b4bzs0 q*m5 j6qpn-j3 arly objects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm ij9jdbqzmg3-an 5 p *qbus0b61 bj (of4n 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 y gji1cyce/ju-n:d ; ,lenses have power of -0.15 D. What is the person' c1g;yn,d jiu-/ e:cyjs 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 correct for farsightednesjufbg 0(e95s4yiha* js where the uncorrected near poinbi0*9eg4ys 5haj j(fut is 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. S,u s / rt-rspio3s/m0uhe places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a dist0s,pru 3-s s/t m/iourance 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 newspaper held 25 cm from his eyes, if he wex+ p*ks .xspr)ars glasses ofk)rxpx+sp s*.
+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 hokxia 06 x-lui7 06fifocal length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes al66 xii0i 70hk afox-ure 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 person has a near point of 2htk u(jcl 47y;5 cm. What is tycj (4kuhl; 7the 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 o7/af c,;nves 2gta 3rmxjs 24focal length of 7.0 cm. What is the magnification if the image is viewed by a relaxed g 27vt, a3/mxscn a e4ojrs;2feye?

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
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person uses a converging lens of. z*mpz,7pz vz7i5 tjz focal length 5.0 cm as a magnifying glass. What is the maximum possible mz7z tmi, zpzp.jv z5*7agnification?

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 o;p4 ruhm6b1 jv-cinpm((u ct0g cnd /x2l.a+r f focal length 5.0 cm as a magnifying glass. What is the magnification if the person's eye is relaxe ucmn(l6 cgv;i+b- p21.x(n0/t mjdpu4ch rard?

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 focal lengths 2.0 cm, 4.0 cm, 8.0 x vt.zenr+lw9zn8os ++a6: xqcm, and 16.0 cm. If you were to use any two of these lenses to build a tez q:n8+ntzleaw .os9+x v x+6rlescope, 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 ybdsn5,w4dr ; of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you wrynb45sddw, ;ere to use any 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 telescope has a focal lengt.15 * ttgewphwh of 200 cm and its eyepiece has a focal length o t 1wth*5wgp.ef
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 magnification of 10. 043k xxj nfzx,/1 txqmIf the telescope has a conver,n/xjx 0 4f31xqxmztk ging 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 telescope with a magnificads 2j1f0m *usqgh2 a*ition of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telescopemqd sui2fg2 j10as**h?

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. If the telescope is limited to bvnb dag6zb9l)hg9vq: +(x49e2q euwa length of 20 cm, what is the approximate focal length of the objectivv9v2b:q 6 eh 9ga+eb x9 uz(lg4nwbq)de?

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 o n1vk,nc(0mgan eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is p, 0k(omcngv1n laced 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 luwsy5/ll b(*xxb0 /uoens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A *l/ub/ 05xyoluxsb (wblood 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 3.00 mm and an e2 -a0- z7hk8tenw0r-0*myuzs wxzfy qyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is rsfwz8 -zqt *- 7h k02mzuw0 enxy-a0ythe 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 objective with a fn5gc z kj8w6/e rl(w3m+u 8fhuocal length of 8.0 mm. What is the + gljmch/kufu 5rzew6n8w3(8 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 anmb,l97g6mu s6zng +fqgular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest aperture (diameter) telescope that can just resolve the ,ub6nl gfg69m7sz+ q mtwo 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 which a k) tz5p4l5jmpre 0.010 mm apart. If the focal length of the objec 5tjl4k ppmz)5tive is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter 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 mnzqo(ye6u v z 9vm,79xm to 1.5 mm as the illumination is increased. By what factor does the minimum ang 6vn9x, zvy(m79q zoeule 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 Space Telescope has been p7hub( qn*22scbd uvq bl0 .3pilaced into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength 2b q hlib3.*sp0ucbd2 q7(nuvis 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://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, 2026-2-22 10:40 , Processed in 0.463193 second(s), 132 queries , Redis On.