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+hwvj+8 n.: j)cuxp w4yhi:j r is exposed in a camera is determined by t4+h8iv:yc. jjwnx: uhj+)wr p he

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
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 determined by tw un urcyi))ux8 y4d50( mhir-he

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 tzjy/70g5xk icamera the lens-film distance may be varied by sliding the lens forward or backward with respect to the ky5tgij 7x0/z 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 covers the w8jy 4lc+ou kh*aiu +/film with a field of view that corresponds approximately to that of normal vision/ uo*hlu+ji4yc +kwa8 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 actu ;qoqd 1:ux.clebn))(+ifkn s 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 thakc4 6 jy+odn75lrl x*vvj03: k boflq.t of the eye and through which objects a05oq * 74yvln j6djrkc 3.+ko:lxbf lvppear 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 i e3rlxe57m d ubab49o5vgldn zn: p-,1s 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+z1vgvz *0vpg c*.t6 xp+fyxn occurs 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 at which an eye can see objects clearly h+ wg/.ckf7ar 0(kttnis

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 a,zvlmwoxrl(uf5h ; l66je75 at which 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, thjxp81c h6e )tqe person is likely to su8hxtpq1 )ecj6 ffer 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 be d is,kn(qhx +x3pj5:rcorrected 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 ried)de;9 ur:7 gw vkr1sse to a vision 7wderru9gvedk ) 1;:sdefect that 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 person is zc,, x ydmi,kd.mqv si6))c 0jb :*cpilikely to suf.ixmmk)bp,csc*0dc qv,ji 6y)z: d,ifer 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 usuap+/, j; cfqyyy,q s0cd,oajh-rpg/ t(lly 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 fr((yc dx f vx8ou)uo),hom front to back, this gives rise to a vision vdhocu( u)xy, 8()xo fdefect that can be corrected by using

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
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What type of lens is a magnifying glastx/8 oknd1r22u q .wvns?

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 objectivebh3j ;cwlv3(s+tg ju. hj3bz9 in an astronomical telescjhv w+zsth gjl j uc39;b3(.3bope 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/0cpynm /i,1xm :sp uh telescope. Suppose an opaque screen is placed in front of the lower half of the objective n su:1mpxc/y h/m,0pilens. 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 sensitiv z.lb46:;b m;jv)ioc9p t vrctity 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 is the objective6j4c t:.;tb v)i l;mbrp9ov zc 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 telesco9x4f9b r j+o+fwvy 3ylpe 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:    
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
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 the greatest dewe,ok -a t4cay2 ch:lx90 mt6ytail when usi,c9: ko- hat4t2m6lxae y0wyc ng a microscope?

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
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer fr(*rg 44un 7xcw rbvjn/om

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 suffezjv, o7*cfb3d r from

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 microsw yej52 t necq6x osfp,v(9h-,cope 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 doubled, what happens to itssqck,3+ p q214 msrq zy7:4j c,q0 pp:pajiwud resolving power assuming that all other factors remain unchanged? Its res,4urqq+,4m1jpk0ip wqa2:p7 3jd:cqp s szycolving 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 dioynugc 7n3a:i x )b27sapters) will allow thisn7 3yua 2a):7i xbcngs person to see distant objects clearly?

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
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person cannot see clearly objects more ts ca702n dn2 u*u5nf lpusa1,rhan 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00ufr2 uu 5a 1lp0n n*a2scsd,7n 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 power of -0.15 D. Whaw/6i/2ts,ih+ykfzdu(mp4w w t is tdw4/u,kihf pzy+2/s( iw6 wtm he person'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 for farsightedness where the uncorrected,9cgx2f**hcluut2 1ztqx5g o7id h l9 near pxtu* c9zt cg1hug2fx*qd9lh ,l7io 25 oint is 75 cm?

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
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The near point of a 2v9;di a/ie(p 1chmzzfarsighted person is 100 cm. She places reading glasses close to her e/2ph1v i9z;a zmd ice(yes, 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 can - x*q(+ajro6yn ,ddb7k ch(mgread a newspaper held 25 cm from his eyes, if he wears glxyq-b rhn*6k,7j+(d ogc(ma d asses 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 leo.o61 sxy zi1p;e3mj dqe u31)v4gj eingth of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person o je1id.1mv3j;yp14i eu3)6gz qes xowhen their 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 cm. A person has a near point it5.fsh or8 u+of 25 cm. What is the magnification of the lens for that person when their eyes are focused at hfou 85s ri.+ttheir 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 magnificati( xqg-)wqp wl8 9mdh ;-v0nm;pfok8nuon if thnfnmwxq h89)(goukqp ; l8d-vwm -p 0;e image is viewed by 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 convergakbst3za +z kqp2yqjgj22 )(/ing lens of focal length 5.0 cm as a magnifying glass. What is the maximum possibzktz /)3a s2j+jk(q2ab p 2qygle 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 ofwes c2cnw ieq,q)e i5 x-7/qk; focal length 5.0 cm as a magnifying glass. What is the magnification if the person's eye is ree 7qi2s, xq-/ )ek5qenc;icwwlaxed?

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 +xn3j / 3cmhcvk y4og18cubo/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 achio13 kbvc/gc4jyx83 h/un moc+ eve?

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 16ad*f( 2do0ngl(k,eu dmb v9s * cm. If you were to use any two of these lenses to build a telesn*ud 0 *a2((,mgo k febddl9vscope, 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 len +l5.2x7 ;v(dt 6ikpv3i*ale zq qlwrygth of 200 cm and its eyepiece has a focal le2 i35t r;yll(keq+px.vliqva w7*dz6ngth of
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 wih.c-qtic7/ puth a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the fotc.7c/uh -iq pcal 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 magni iv oe y0l2t17uk,0gbtn zoc:7fication of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the teleok7yobi2 z0t gn, lcu 1:v07tescope?

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 limitikxd2zxu / k i5(2z6oled to a length of 20 cm, what is the approximate foclkik d(izu6x25/2 ox zal length 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
44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A microscope has an objective lens9mh zj(f tg2x*-mjp) w of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. )-92mwj h f(xmp *zgjtA blood sample is placed 1.5 mm from the objective. How far apart 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
45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A microscope has an objective lk /xql6f;db v;ens of focal length 1.4 mm and an eyepiece of focal length 20 mm, /6kx;lf dv;qb 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 objective with a focalh7+x sr el5 tnc4of9a/ length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses a4cx /s5 7fano9 tr+elhre 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 18abax0 r, txm y6:mf5sm,-ch:l-cm barrel and an objective with a focal length of 8.0 mm. What iaf,b mt:xral,6cmhy-:5 mx0ss 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 Orion has an angular separa4 g6adl9 vl1e*cxh w,ition of 10-5 rad. If the wavelength of the light f e1a*6gldh ,viclw94 xrom 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 resolve objects which are 07q 5yms2k;9utwt 8rvf.010 mm apart. If the focal length of the objective is 4.5mkt 2 u 87qr9wsytv;f0 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 of 3.5 mm,*wxrvu ft *8- iz*isni.- dbf to 1.5 mm as the illuminatf n 8,z *u-iw*dtsf ir-xv.*ibion is increased. By what 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 placed into Earth orbik 8 pwgm4 55ltod5tegbg1 2f(ut by the space shuttle. What angular resolution could this telescope achieve if the mt15gwdlep t (uo2g55 fkg4b8wavelength 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 17:14 , Processed in 0.298421 second(s), 131 queries , Redis On.