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://autoconfig.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://autoconfig.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 camer/j 17k5h4 xiydmeyun.yl2j- xa is determined b -d7kjyylxey. j12 uxh/m i4n5y 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 in a camerk-nq( j s2:xita 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 distanctz+/qh v* s7mve may 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, this meats7hvq* /m+vzns 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 ofc:v( tkx1+pz7rdfm rb lm2;w( view that corresponds approximately to that of normal vision is referred to as kpb:(vlrzmrx+ 7 ; wdm2c1tf(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 k7cz l 1osh(,ax)o-ss like a telescope to 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 field of view than thjicuig24j8 w1 xbzg+4goi5p tn( z1w4at of the eye and through which obgcg44+bi25 tx4 wjiwiozupg1n z18 ( jjects 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 different +p,g)4m0tl u o5w(o+lf ndpt ffrom 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 refractio3t i jdc0)4sd-m1gqnby que 22n of light by the eye occurs at 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
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 objects cj/0a)+vxc l1z6h q0 geb)al. fip;msv learly is

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
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The farthest distance at which,cfj)imzx g -:u+ld f0 an 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 to back, the person 6yciqcx g +fd1dy6 86ris likely to suffer 6c cdyyq 1r86dgf +ix6from

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(fo8jhj2no : ,(kz9,dxx uc up 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 to back, this gives ri+q*d /ou uf:du g+d2cnse to a vision defect cnu+ gddoqu2u f*+/: dthat 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 p;33cqxbycvl1z o/5rr rb y44d1f .ur rerson is likely to suff3rr4coy r r3q.b1cvu l;d5x b14/yzfrer 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 16n no jw-1twcwith

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 tot(d*k0f/b 43ejjon*b k jfiy * back, this gives rise to a vision defect that can be correcte4dfio /fkbbnjte * j*j(y0*k 3d 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 magnifying.y 7tn nvec46f glass?

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
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An important reason for usingfuy +.7 dupej-t)s; jw a very large diameter objective in an astronomical te.j) tp7fe-jdw+; us yulescope is

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
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 opaque xr mdn3d4hp56m, y wn9screen is placed in front oxdh rm3m6n ,dy5pnw 94f 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 sensiv4kfv e;p um/8s 92zmztivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closelym vz428f e/kp;v9smuz 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 magywbzrx3vg,+ a 6zr4i8 nification $m$. 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 thc8gaty*2,+mpf5 m uvy)wt :lve greatest detail when using a micros *w5)cp+lygt,t v8a y:2m uvfmcope?

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(v 5yqc e8cc.pl8si 6r8mhjk1 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 fr- o3pj9imiyl;om

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 microscm+(peq+kr9alv phm8 7b ; pu9iope refers 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 doubledv)7p3w obztizp2 ir27l7c* ry, what happens to its resolving power rzp *i 2i r2w3zyt o7cv7lb7p)assuming that all other factors remain unchanged? Its resolving power

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
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 di1 k3odq.j 6vpm wk4rbtuc z53+opters) will allow this person to see crm+4t. kpzv3uodb3 5 6q1kw jdistant 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 away. What power of lens ruecwv 0gg b/6n+wl( (l5azv6should be prescribed if the glass is/50b(wvnl6eva(g ucz lw +gr 6 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 poweuf de*ob703)aeyov l :r of -0.15 D. What is the person'so f3ua:v )le07bd* yoe 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 farsightedness wheree8ry:9(a9 qvoxsu +icn )ze ,k the uncorrected near point iesnok99vaqz cy 8ex)r+ u(i :,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. 19 29/xcbj+e*etaubb q; xk udShe places reading glasses close to bj ;k+q91xt2ex /u9ubcab*ed her eyes, and with them she can comfortably read a 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 ca5qzkf tw))k b sz;vh:pexi-m 6c k::e:n read a newspaper held 25 cm from his eyes, if he wears glasses of t :b:-ze wizxspkvkm)f5 q::c6 k;h)e
+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 hmhlb3.,zj g2lr9 x,s::ognr * 0v4kwhyhbd q9as a near point of 25 cm. What is the mag3brh 9z40*:jmg:y.wl,,92d kg vh bronqxh lsnification of the lens for that person when their eyes are focused 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
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 perv5* du: 1-sib*4 xy;x xoekq f3yg0vtrson has a near point of 25 cm. What is the magnification of the lens for that personvydo igu1 x53f-:;q0ry ktb**sx4vxe 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 the magnification if t78uuzkiha:90rxz 7o r he image is viewed by 70u 8r xh9:7uzzro ikaa relaxed eye?

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 focal length 5.0 cm as a magnifying 6h)(m3 kbmr jyglass. What is the maximum possible magnif) yh(6kmrjbm 3ication?

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
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. **xh e6hx1wpa gqw1q.a* z-wchld/8n What is the magnification if the personcnhwxza lh*a 8dw1p- .*h /wx6* qqeg1'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 cg j7flz9yxfw31 ea/v- m, 8.0 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 could a we/jgyfazv 9-l3xf17 chieve?

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, and 16 cm. ;e0,p5ck/i8 px cmetd9r*bps If you were to use any two of these lenses to build a telescope, what is the leb9rspp, x;cp/t 08 c5k emi*dens 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 length of 200 cb 4ijzhmu ;r3ix/ ,/ 2 wzrqbscm0m6j5m and its eyepiece has a focal length omw065,;r / /zm2isbrucj mhijx q3b4zf
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 magniyulhse-:k) q+ *:5, htgoe xaf.. fcxtfication of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of the eyepiece? f g)yfh:l5hs-kqt+, .e:c*axeu.to x

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 magnification w2x3wu cd 9)3i8)y0vi pxu /v :1fszdnorw*fpof 10. If the telescope has a converging lens of focal length 50 cm, what is the resultwv / ufwu dxr9:v*fcp3y ) in3p 1odwz0i8)s2xing length 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 limi: 2 gh;avxsx(vted to a length of 20 cm, what is the approximate focal length o( xv:;gxa sh2vf 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 le f-l bf1h;.bein ,/ftength 1.4 mm and an eyepiece of focal length/i.e,-f l ;nb1etfhb f 20 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 objecm0p civ8/,9cmb pa2 dftive lens of 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 overall magncpv 2m ,bmc9a d/0i8pfification?

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 ha87m t( l z8+wb+ guesa3cigc wtk:v/y8s an objective with a focal length of 3.00 mm and an eyepiece of foccy c:7bmgu+ tzktw +8s 8v/3gil8ea(wal length 6.00 cm. If the two lenses are 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 bam 2 hx* u+ynj+ va2k01q)ygseyrrel and an objective with a focal length of 8.0k2+e m*ys+ yq)gj20a1hvuynx 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 constellation xq7sb2 ;o vt4zOrion has an angular separation of 10-5 rad. If the wavelength of the light7v 4s 2qz;txob from the system is 500 nm, what is the smallest 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 resolva4z(4sr/bvk f jh3fnrl9j(n3 e objects which are 0.010 mm apart. If the focal length zhl afn s v((n94jb3/3 4rrkjfof the objective is 4.0 cm and the wavelength 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 eye changes from a diameter kjs yl65y1 z-s:hla4tof 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution changj5y - tlyks 14ha:zl6se?

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 S4pdiwukk uktil*jag3,zj6/ ; :mw :y:pace Telescope has been placed into Earth orbit by the space shuttle. What ald:utajkj,uk zpw:;ywk /: *m43 gii6ngular resolution could this 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://autoconfig.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, 2026-6-11 16:02 , Processed in 0.315508 second(s), 137 queries , Redis On.