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://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 camerajgi+j1i vw3(y+ wejsgx.u0l : is determined b +i wwl .y+(3j1uv0:ijsjgxeg y 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 camo/iode(1;16 p hd8x 6jbyyhai1g 1 xttera 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xxxxxxxxxx，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 len:fiz(zy+m cj4t b 4u/bs-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, au+b mt :ycz4zb4(i/fj 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 view that corred4 jqm*5pt5hk7r 9 t hasr3w;fsponds approximately to that of normal vision is referredts7fp3mw a *9r qjd545hktr;h 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xxxxxxxxxx，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 is4(c0fq *rcoc,ibkq4x 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 co,mn6lj zz: 7view than that of the eye and through which objects appear smaller icm: n6,zj7 zols 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 th( u50u kxh, nicvh5e+y0ttg/ hey 7s6n1acg-xe human 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xxxxxxxxxx，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 the a+w,e (l7aqohonsi6-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xxxxxxxxxx，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 whfl.hoq i qa 9* j12)drmkr8:lhich 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 cleagpd e6 h9dobtnvu)* ,8rly 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 i. rogmp zt-3vuzf)7h3,; j r6vs:ygizs likely to suffey)m. 3h36uztvviz rgr,gp:7- fj z;sor from

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 a9eopv3 h2yjr,y9/lrbe 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 o+h5cqb.e5 xilo8u g*-tpu-d /t.jkvlong from front to back, this gives rise to a vision defect that can be corrected b teudixl.kpu5g*oj+ /hvo- q t58 .-cby 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 persm t06qpwy4sf/04 bk rlon is likely to suf l4 4qr0m0fby ktp6w/sfer 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 correct)syy p, t6kry)ed 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 b3bgb7 q.g4 orfront to back, this gives rise to a vision defect that can be corrected byrb3.ggq4 b7o b 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 magr+rb :nt6u+ss +,xpahnifying 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xxxxxxxxxx，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 using a very largvys8 w.f2l :wsu8 zin.e diameter objective in an astronomical tyzn .:v88s2iflwswu .elescope 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. k ,3km w0a;elnSuppose an opaque screen is placed in front of the lower half of the objectivel;w30 k ,anmek lens. What effect will 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xxxxxxxxxx，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 sensitivity througholub/*7qihm:lu *nk *hh+y3z1wh or s*ut the visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The lens referred to is the objectlh u3 lh*s bni m**hrzuh*+w /:y7k1qoive 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 magd/b 1 1h)d b1eatm(vcknification $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new 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xxxxxxxxxx，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
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;bxkti th0 f55m-gsl: able to see the greatest detail when usingtbxshi;m l g50t-f:5k 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 suff: tcpun:ux2x)g:kv umjp*c (;er 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 from k;x5smv1rgmd6 u+w,n+ wvvsta ,z8 a;

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 ability to)afxb:4k za2 y

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*dv06d i3tqxr53 dd xw happens to its resolving power assuming that all other f i5 3d qr6dtvx03wddx*actors 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. yn43sk (l2np sWhat lens (in diopters) will allow this p2sk n 4lps3y(nerson to 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 clearly objects more than 70.0 cm away. What power of lens qd 7jnyiu:r 6/k0ju0uke4c*g t6 op+f should be prescribed if pi4rt+67/6:0jyukq duf ec*kj o gu0nthe glass is to be worn 1.00 cm in front of the 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xxxxxxxxxx，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
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 x sm8)80jblanof -0.15 D. What is the pers) 0n sx88jlmabon'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 correct f- fo, kdsb7+lgor farsightedness where the uncorrected neosd-,bl7fg k+ ar point 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.bbo6(b mp:/r+ d kvc:b She places reading glasses close to her eyes, ap+vbbcd bm:k6( b:/ornd 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 can read a newspaper held 25 cm aa;dtod6l6a2be ,1k2ei- lg e *f6yyp from his eyes, if he wears glaae 26lfdaky;2dyplo 6g *i6t be1 a,e-sses 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 /bfo ,ug8 (n:uu2u+rr: jjydva near point of 25 cm. What is the magnification of the lens for that person when tvj 8r,ruu2:f(b: g+ udnoujy/heir 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 c ;g :gh,3vq9xb4a1ydyyv d 5gdm. A person has a near point of 25 cm.ag:ddv y d93x1g4q g ,yy;vhb5 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 hag68v q4qa1id62dvhw bs a focal length of 7.0 cm. What is the magnification if the image is viewedqgw6a4v6h d 2qi1v 8bd by a 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xxxxxxxxxx，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 magnifyin9b6 seyq; i rd8n/vi5;qymo w(g glass. Whaiqnm6/ebw (d; q y95os8yrv i;t is the 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 a13zo gvkp g(f4s a magnifying glass. Wh3p( 1 vkg4zogfat is the magnification if 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 oo7 aa :kr:t*ntf focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of thesk7rt:on:a *t ae lenses 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 lengtheps. qpen r- w *il.wrt7)a7wp-u. n28qy3b rws 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two of these lenses to build a telescope, what is thel.2p38s* atwew u7b.er.qn y-7p p -w qrr)niw 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 length of 200 cm and its eyepiece 5h2-naj;aqm j has aa;j25 m qaj-hn focal length 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 magnification of 1 ,3mvjad5 xav:*di 4ww0. If the telescope has a converging lens of focal length 50v5j a,id34wx:va*wm d 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 magnification of 10.0i1/h6, 5ebx ujxy1ri: b mlst If the telescope has a converging lens of focal length 50 cm, what is thiu 6y0: mb5s h/lrb,i1 xj1xete resulting 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 telesco (5 pfs :dxgfapjqu.k,9-z4 zbpe is limited to a length of 20 zd ks94f 5u.gbf z,pj -:ap(qxcm, 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 and an eye 2zvdrhxfm6f 0/tx+6k 38pxufpiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far apark phfrdt3z+v8 x6um/f0x fx62t are the lenses?

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xxxxxxxxxx，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
45#
 
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 eyepiece dyjr)x-e bgrlh8. /hs 7()tnmof focal length 20 mm, adjusted for m.rr (7e)nh s ygtm/d bh-lx)j8inimum 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 obw).u wuyvb c 6b; 2d9qd5d3enujective with a focal length of 3.00 mm and an eyepin)wdvbweu ;yc2d5q 9 6u.du3bece of focal length 6.00 cm. If the two lenses 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xxxxxxxxxx，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 barrel and a)+,qk0omlr ro *lem a/x1-hrwn objective with a focal length of 8.0 mm. What is the focal length of the e*r o)wx/l kqlare,hm om+ 01-ryepiece 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 th,r y jmp1kjrr doqlc.*6l)9;le constellation Orion has an angular separation of 10-5 rad. If the wavelength of the light from the sysl 1cq;dmrklo,r *r. 69jp) lyjtem is 500 nm, what is the smallest aperture (diameter) telescope that can just resolve the two stars?

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xxxxxxxxxx，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
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 are 0.010 mm apart. z z(j66uk*y72uoe tgszda8 ;m If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the dkg *8 yjz6z6o d2;m( ust7uaeziameter 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 yjhqtji9 0-) uq)udhk-:9f s sdiameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of res9tj9q ) 0ku--yjq suhf:i dh)solution 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xxxxxxxxxx，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 Ee v1*fa38fk vtarth orbit by the space shuttle. What angular resolution could this telescope achieve iffv3 t*1fve8a k the wavelength is 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xxxxxxxxxx，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

    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, 2026-2-18 05:54 , Processed in 0.545298 second(s), 132 queries , Redis On.