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 shutter is ope)rmxzyd n662o0g+dv .af 5xj an and the film is exposed in a camera is determnfoy26d v+x za a.g)5rd6m0jxined 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 in a camera is dvvpkp a,/)d 406jsyyketermined 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 th 8/6wcsntr,v+,sbmy i ,;fkhme lens-film distance 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 obtain ,whvmbc/ kn;, i 6,+frstms8yed, 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 cd18tu u1.wa wa field of view that corresponds approximately to that of normal visiowtua c 81wdu.1n is 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
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 refe sa89zcb; h1tprred 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 viewo+vt zi0oi7m. than that of the eye and through which objec0tvooi 7zim .+ts 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) u3ablo/i 2n 7nxddr.d.8 nyo 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 occrlu w; olks00:urs 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,;jd m7n60mphy02dc i*wq eb j 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 ob ppeig1/zbw;uams41 *jq0 ju0jects 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 tooxzzyy)/ f bb7i 6:oeuo3q8(j hyse(b7 long from front to back, the person is likely to suffer fr/yx3:fo7iybsq o y( b(je8eb6 z)uzh7om

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
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usually be corazz80v ve -9kzrected 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-2bu t ittuu4s c((.li too long from front to back, this gives rise to a vision defect that canl ibt c(it4u.(-tu2us 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 b)if9f- fu1*rbo:btbb n1d+hhack, the person is likely to su 9nr+f1)u-:h b1fdfbb tio*bhffer from

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
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usually be corp fw/gvo )e.+z;prw7:yi jbf(rected 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 giv ,6fya trd+rq+es rise to a vision defect thatf6 a+dytq r,+r can be corrected 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 s.fqo0.8 xqdd*j .rjd magnifying 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 for4 w1iobxw3kw ) using a very large diameter objective in an astronomical teleww3bo1k wx4 )iscope 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 fnhvc/qi v8)t -1qvxw97i-jiyl( iz .aormed by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What enz.89 -i y(qv7wlih 1vq)i-cx/ita jvffect 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 visibv z (.3ptqremesqa;p2dpp +:9hx;r :vle spectrum, in which of the following cases would you be able to best distinguish between two 9+tpsrp p eqdp3;xr2azq.( vehmv:: ;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 telescopex8tjtcar(0gyjh(bx-mly6i :3 1d . pc has a magnification $m$. 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 be6tp9n/3 qw2xvikwyi+ able to see the greatest detail when using a miv2w x9ki6qwnt3p+ iy/ croscope?

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 froszi/ mroja7v; zmzd5 36nl6dz8kt34f m

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 fro ahj)hpz*35i dm

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
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The resolving power of a microscope refers tooxpsh.by w 0feqd;nx8* 1)u;w the ability to

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
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the diameter of a rad) fek1vb; wi7lar dish is doubled, what happens to its resolving power assuming that all other factors remabw v );fk1lei7in 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 hu n30umgadvwfcf*n 70u 0* +d)g,pfqsas a far point of 18 cm. What lens (in diopters) will allow this p0m0faw*g3)q uudc vsuf+g0p ,n*df 7nerson 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 ayv(n4 ho;j7+1mngwr 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in fro7o(nh1rm 4y a;vgjn+w nt 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 t;r+ wloeje )0-0.15 D. What is the person's far point if the glw0te r+;lo j)easses 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 whg1zt2uc.u wj06 t5jtkciv *6lere the uncorrected near pog 160ultw tc5ku6icv .j*2jtzint 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 165kjg d(y(t79 ,:nbe e2ymzqg l btzk800 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newsp2z6g 7q 9:tg(me ke bbznkld(,8tjyy5aper at 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 newspapuu xw9( 4ke jv*00aomjer held 25 cm from his eyes, if he wears glasseeuj v ujao04m9 x*(w0ks 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 5y-hk 0pn2ukq person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at i02h5 quny-pkk nfinity?

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 person has a near point shg36ywy-4(t+o inj q of 25 cm. What is the magnification of the lens foy4 shn+j(iq togw-y63r 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 7.0 cm. Wh8 yibg0 3ywt/w1(pyxsat is the magnification if the image is viewed byg0 ywty(pw 8i xby/s13 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 converging lens okfzvo nm1 0r(nwqvi.ew/ uw+n6 /s.s( f focal length 5.0 cm as a magnifying glass. What is the maximum possible magnif0sn nwo r m +/q(vfv.sen/.i(w1uk z6wication?

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 foca iq *k)ip8avdtv3c r9hr 9qk 5po+ktz* qa75p:l length 5.0 cm as a magnifying glass. What is the magnification if the person's eye is relkarq 8r79)i+t z*diqo3c 5a v*5ptph9: kpvqkaxed?

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 oo0leo f yw5m,4f focal lengths 2.0 cm, 4.0 cm, 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 achievew,l 4ofoey50 m?

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 leni .nsvap7.7 ijetu1d.ses of focal lengths 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 the lens separation fn.ap7i t.uvd. je1i7 sor 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 telescopn2n amdzf,+wz5 j,6:8 fvocahe has a focal length of 200 cm and its eyepiece has a focal length of6 8 cf+f2mao,njnazd5h zw:v,
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. bz i51hwzbmtx.hu6-sym9 0ik9,b o2i If the telescope has a convh2, 1bmx0wmb ok5 6yib- h9si 9.uizzterging lens of focal length 50 cm, what is the focal length of the eyepiece?

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
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A student constructs an astronomical telescope with+1eeco ix53b y a magnification of 10. If the telescope has a converging15e+yoic 3eb x lens of focal length 50 cm, what is the 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 telescope is limiwom2;msa(8 8 ul pri*5l* owjvm00sg gted to a length of 20 cm, what is the approximate focal length of theuwp8 ljvgsw5 l;mg*s0m(i o2 om*r08 a 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 sz xtz4jj;o e g wm(:.2-(yl6mivwvj4 and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How f2j; s6jgw (:tvwxzj-v(lo ymeizm44 . ar 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 of focal length 1.4 mm and an eye ;:.psutwnifa)qfh /3piece of focal lengtht.fp:nf/q ush3) ai; w 20 mm, adjusted 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 objectivey8cnx( wsj)i48j r (mey x4p:ot4k3* qnqyp*q with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the totjq(t ew * n*ikjr)y syx8y38p(xo:q4n4qmpc 4 al 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 hnk-9( ha jb,s0sr6en uwkc )0sas a 18-cm barrel and an objective with a focal length of 8.0 mm. What is thessa-sk0) (,cbn nkjre 0h u6w9 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 u 99rcfo-9fq tthe constellation 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 (diameter) telescope that can just resolve the two stars?q99 u-9ofcf tr

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 icj193g.e6e wccac mh twj)t64 s designed to resolve 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 diameter of tht )c6haeg3cc49m6wjc. wjte1 e 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:rxzsl+30 ,ftw f,yoh diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of rf :x 0 wzsyhtfo,,+l3resolution 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 th-gdn .2qqy 1i*v x9eplaced into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength is 50g t*q2n. xd 1y9hvie-q0 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://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 10:42 , Processed in 0.416530 second(s), 132 queries , Redis On.