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 open and the film is exposed in a camera ie6w xs7+cheqa/ 2 a.det(e+fw* ns1dws determined by the c+ d*xds(7.+t2fwahs1w e/ a 6wenqee

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 determineth3 vvt4(u:p g .c:aaid 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 tr;w+1n,8w 6j *.igumyfmle.dv jc:e lhe lens-film distance may be varied by sliding the lens forwgu:lr*.je18+.c nw ,6 mef ;wid jymvlard or backward with respect to the camera housing. If, with 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 cove.hw )4y, kxnznrs the film with a field of view that corresponds approximately to that of nor).h4zw nky,xn mal 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 te(c ;kuih1x ou+lescope 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 cz6+tfs .71b1 mjrz oxzovers the film with a wider field of view than that of the eye and thro mzt16zo x.r17sj+f zbugh 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 is a camera +ld d-2lrb58avtd r:g7z9y y tdifferent 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 vds:. e3 ,j n0hoa:ffpoccurs 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 att4u k qo69oam w6s x 1xwqao(io(,*h+s8zzjv* which 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 objec m*y+lv+ a)vrrts clearly 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
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a person's eyeball is 0dg;ksx )(9)hnuho/u.fdn iqtoo long from front to back, the person is likely to suffer qgu() ddn.nhu i;fko)x h/s09from

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 wl jylaku:0/z+v4 1sy 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 fbjde/iv144 twrom front to back, this gives rise to a vision defect that cv/ 4tij dw1e4ban 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 shortvs;pa mz8w.0 w from front to back, the person is likely to suf.0wz;swpav m8 fer 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 usua jpj-e98 b6kb j6vfrd6lly 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 bae1bck 7 (a ucp)be)ff+wds 8h1e2 tbu.ck, this gives rise to a vision dbc)eu bfe sauk7t(fhw+ d )epb8 2c11.efect that 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 magnifying glass?/xrl qwd( w6sc-vzp;(

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 objbbh9 v int;f9:ective in an astronomical telescope i9:v 9ihtb;nf bs

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. yoqurf9;bqns x2u 5dr:/ *7mg Suppose an opaque screen is placed in front of the lower half of the objeo9 qgb mq2fy:/uusr*d5n7r;x ctive 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 sensi nbjt t1nkv9v()7.pw cq b+ig3tivity throughout 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 ic.t )3ng 7tw9jbp1iqvnbk v( +s 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 hwdkc8023h+hj lsjg3 zs,f 6t qas 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 yme9e 4( 5jx1goy2hg fyou expect to be able to see the greatest detail when g2o(4eyj 1 hmf9xge 5yusing 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 suffer fro1f utk6t8m: dum

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
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors sufw-cn3z +3zo3:smj agvq 0* nxgfer 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
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 as( piudz3 5.0jb94+m r sx)*uy ghofcxbility 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 nrry4n3 +eh:xq2z+redoubled, what happens to its resolving power assuming that all other factors remain unchanged? Its resolving 4:2rqern eyzrn3x +h+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 (g1p(zxwskp40w y3j q 0ti- 3odin diopters) will allow this person to see d 1w s 0xzgy4(ok-pqwip0jd t33istant 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 cdw :qg bp407yklearly objects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00kp 40y7wg qdb: 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 wgv0 zqkj 6r*w6j6e t+pears glasses whose lenses have power of -0.15 D. What is the person's far point if the glasses are very close6+ wkjjrpzt*6eg q 0v6 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 farsi ud8 rqhnzg6wpx,,:m q-.fg8nghtedness where the uncorrected near point w.nxhqq gz:,, mrpu-n8d 8f6gis 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 farsig 08*vi keltu, ysbha/4hted person is 100 cm. She places reading glasses close to her eyes, and wi 8,4 vl*/tesayhk0bi uth 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 cq6m0pv*bvk8 pm from his eyes, if he wears glasses p bv86p0vmk*qof
+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 oo-d),nooocl(1 o* dd(1l jj /wkky;bzf 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focusezydwl,)- ;b 1oj/(kojcdo*1onl(od kd 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. .os.6*lv f cm.kw737 qgtnf; -ojqaqf A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are fq7 cn .jasq.v *o3- gtfoq6;l.7f wfkmocused 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 idyl468sl t +wa focal length of 7.0 cm. What is the magnification if the image is viewed by a relawlit8+6sly 4 dxed 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 magnifying gl 29g*huxy2xz iass. What is tx9z* iy xh2u2ghe maximum possible 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
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(;l7h s hggiuwzu,-w; length 5.0 cm as a magnifying glass. What is the magnification if the person'h(wzsl;u7-g,i;gu wh 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 l8cf eg2nzc/d;3cntwi cd;lu *dew p9c6 sq85-engths 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 ; 8tpndc ;*cdicw 65uwe38nz 2 fcceq-/9gdsl 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 focark9pld/ c3 (m azt6l5tl lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use an mad3c9l56rtpt( k/lzy 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 length of ()aon0 owmi vb)t/1ik200 cm and its eyepiece has av10 (w ii /manbtko)o) 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 magnifica gahdhnm *( ksl+ctz,* p)nxw /;re*r1tion of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal lengnlr *zxhcr/kmnd;thea1( sp+)* wg , *th 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 of5sx*hd*j0 gg lv+4c 4lsg8wy d 10. If the telescope has a converging lens of focal ledgyw xl 5vgjs *d+08l4cs* g4hngth 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 i sti2(k4mf t/v-1ykla s limited to a length of 20 cm, what is the approximate focal length of the object( kt/-2l4syfvitk1m a ive?

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 len; k qlq,o1ym,ns of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A bnklmqq1,,; oylood 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 objective lens of focal length 1.m:tch(pn ( tvwsf,) rgp8-fjkg k56x.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 magn-k5wng8 )mfhtxkf .jgpt (s,6v:( rpcification?

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 mw+nzfe v.;6c7 t.t*c 3l iewlfocal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses art+67ce. vnl 3.iwctlwme;zf*e 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 barrel and an objective with a focal length o:g3,j im* 5y:w)+/y czxnplz bougn9 uf 8.0 mm. What is the foc/unmy5 :iocguz,+yl :zp bxn* ) 9wj3gal length of the eyepiece to give a total magnification of 240?

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
48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A binary star system j;rldq9xs m g0m 8rqf7uc52a/in the 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 fr/s9 jlmrd;xa8 5 7cq0gqmu2two 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
49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope is designebhg 0.bj ai lfd:,y)+td 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, wh g: 0hiy,j+lb.d)tfab at 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 chanrfimrsad49n818. oqqges from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what.81f8r q4sq mo9idnar factor does the minimum angle 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,u 6cd 7lguhvme .+q:u placed into Earth orbit by the space shuttle. What angular resolution coulq76c:due.u,v+ug mh ld 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://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, 2026-5-25 19:49 , Processed in 0.486599 second(s), 132 queries , Redis On.