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 jm25-fup n-r0apq+lh in a camera is determip5u-fm- +rjh0 a 2pnqlned 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
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The amount of light reaching the film mp)ru0 /vqa+fxvzdp a3:v84y in a camera is determined 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 the lens-film disd5pgj p9 u.4l 8s9wxyttance 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 opx4pw5t8 .9s 9j ludygbtained, 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 o)r3gr7(;urlo l2 u ickf view that corresponds approximately to that of normal vision is referred to a32c ) rig(lururkl;7 os 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 telescope to magnify images is referred to as pk vf3md;*+s ftz, 2jva

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 viewbil .bxf t ;)lg/k)ux8 than that of the eye and ktl b)u.lfb;i8x)g/ xthrough 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 diffe (hx-jt qrzbl:/o7)k nrent from the 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
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refraction of z9p5q)7qja amd8*72gtq ic qam.) olqlight by the eye 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 cleaaz: a 3c.nt0 94bupk/s.4 myoyxowwj 5rly 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 whic6kqr m 0 a,ypr,j 3+ko9w4vitch 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 ba hx z qi-fpipn17im- 2c1.fq(lck, the person is likely to suffe xn1pf- ih(qzficilm2- 7p .q1r 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 correctk u23zvvzj6 5xed 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 fro3y s6+ c11r dtceecyb0m front to back, this gives rise to a vision defect thacer t1s0+ c 6cyd3yeb1t 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 peryhb9 majq; 1f+son is likely to suffer frqmf hab1;j9 +yom

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 w:iimd5z/ffl v2g,lz5ith

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, -l4gq5ur/tq ma+ sjeb j24x:zthis gives rise to a vision de-e 4:2/rmgjb4 jla tsq+5zqxu fect 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 glassh5c --zl h2db;*ewtpcbqj6+ h ?

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 .5znn)2yw-*v tfebj):a olc 8rql1q, j eu)pn a very large diameter objective in an astronomical loa c n ju:15eqr-l bp )n)v*yz.qwe8,n 2jtf)telescope 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 . y;zr+ad ags-a refracting telescope. Suppose an opaque screen is placed in front of the lower half gas; d-r ya.z+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 un: zw30wbvng* xiform sensitivity 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 obj*3wg:x0 vwznbective 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 stx + ;;kk*tf ui3l02ckkwpp)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 ln5i8 u-ig2 aq;he*gwthe greatest detail when using a micro52 qie ug*8a;n-iw hlgscope?

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 q x/u,ze8prnjg) 6*uefrom

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 f*oi-thmm8x2 b rom

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 t l*v;c/p9 xqmho

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 radar dish is doubled, what happens to its resolving 0(6pf6njh3m )x znb;zzilrz+xkd8 nw4 e1c5 fpower assuming that all other factors remain unchanged? Its nz8bz ;zxzmwnr65n4(p )+hfkl6 1fjd3 c eix0resolving 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 1ool5;p /phr qk.fn*tm-rs+hhas a far point of 18 cm. What lens (in diopters) will allow this person to see distant objechr5+;r*on. m h1/ost-k plp qfts 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 than 70+7ywc)hfqi1gf,h )ysx ); ez3jzkr n,.0 cm away. What power of lens should be prescribed if the glass,k;ryq,eh+1i x zy)ffng)hzjc3w 7)s is 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 5(;m y *ov vjrlx+b.col9w9 iywears glasses whose lenses have power of -0.15 D. What is the person's far point if t mrw(yv.b+ ;oclvl9y ji* o9x5he 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 tomct17tc) wuj - correct for farsightedness where the uncorrected near point is 7 mtc1w-tj u)c75 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. She places reading glas4pqv6dz+ jh+i/;us ldses close to her eyes, and with them she can comfortably read a nvjq +l h/u;spd4zid+6 ewspaper 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 hej-mva ;6 s;e,cc7xhng ld 25 cm from his eyes, if he wears glasses7j x,ec;ch;gnvam6-s 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 a neaa(.4s (gb ubkir point of 25 cm. What is the magnification of ba4b(.igs( u kthe 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 person has a near point ox 8qv c18q(bpxf 25 cm. What is the magnificatio px8q8bq1(xcvn 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 has a focal lehm,pahy .db0+gv)e .t ngth of 7.0 cm. What is the magnification if the image is viewed by a relaxed eymht.) ybevd.h, 0+ apge?

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 glassik0y1h -1q s6lpjsicxp09 ul(. Whayxl-ii(00 khjs1l 1p 6pcu9 qst 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 as a m y mk(vkb*a7s/agnifying glass. What is the magnification 7mkbv/yk (s a*if the person's eye is relaxed?

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 lenhl q6:0rb ;avzgths 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 mq;:zlrbv06 h aaximum 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 len4t i3 jm n0llu,;bm6mngths 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,lnm3mt64miulb; 0n j 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 bj2sa y58est 0a focal length of 200 cm and its eyepiece has a focal lene yt20bas8s5jgth 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 10. Ih:hqqsi*;7v 9 nh +qzlf the telescope has a converging lens of focal length 50 cm, what is h;+qsh nhi9l:zq v7q *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 a *ct: )ol igycxsh 4h,1xlj;r7g;ah9telescope with a magnification of 10. If the telescope has a converging lens of fl, c* a174hroylg;i9g:haxc j;xs)thocal 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 isj3v di*f4 cltcmm/ i(9 limited to a length of 20 cm, what is the approximate focal length of the ob(/itmdfm3* ic9 clvj 4jective?

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 o as2;m*:x./e (5lxe4gbq1u g upkkcmfbjective 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. Hokl asx*/muk5u1mqgb4 ef: (g2. cexp;w 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 1.4 mm and an eyemoeyw3y5 .dl d ,o znxgio5x +,sp.6n,piece of focal length 20 mm, adjusted for minimum eyestrain. A bmn.+ldwpozx nx5o.3esd,5y6 y, g,o ilood 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 focal length of r( gibg)q+-4 f) gcrlb3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is th r +ib)f-cgl(q4g)gbr e 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 c4futdbmbjc9j z 68dshu7.a 40r- 5x gobjective with a focal length of 8.0 mm. What dtm.ch-9j 7x6 bjsf5u4 4zu0rag8 cbd 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 Orion has an angul49mu owxvm* w0ar 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 c4wxv m*omu9w0 an 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 0.e7tj)ue4s0 1c m7 ia2 xaju4np010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of lijps m2ci1a 4n0 uxe7auejt 74)ght used is 550 nm, what is the diameter 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
50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pupil of a person's eye chanaxl)4f0gm fo1 ges from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolutf)of14m a 0lxgion 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 Space Telescope has beyi yb6au 7m,-gds+;hcen placed into Earth orbit by thegba i6 7;d -schy,uym+ space shuttle. What angular resolution could this telescope achieve if 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
  • 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 10:40 , Processed in 0.439642 second(s), 132 queries , Redis On.