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

 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 ink:s7p /izex)n a camera is determined bs e /:)n7pzikxy 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 fi :-05hcasvpd jlm 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-j a6ua6sv77d cfilm 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 7sacjv76 dau6 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 filmusgq jhkc9.x 1: /v5od with a field of view that corresponds approximately to that of no:qsuxvg /d j 195h.kcormal 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 tesua4q m2 qw4 emc)f1+llescope 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 tha1 o;f6fps(o rht of the eye and through which objects;(1 hr6pfs ofo 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 different from.3* c 57sfrvyvsnppx8 /3gjwakl,px+ 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 byby:e9gwz 8vk+uka *9b 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 objec921a7bzh ds+urp+oy tts 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 0jbg9i 71,swy mf- sfgeye 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 fronb/ m, *+9bkkc6rsz:9qtq5ao .si ebv59y ih eyt to back, the person is likely to suf*b9rao:,b 6ic5 9ys 5/yk+sq.zv9hbtqiemkefer 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 usuali a- so23u-0ek zdnsyy3.hi4fly be 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 long from front to bacu57 jc f/fiql(k; /xrwk, this gives rise to a vision defect that can be corrected by cjir ;lwx//kf(uq57f 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 likely zu9edayky, nrq0)9 0ee9fw)p to suffeeuwf e9rzqa)0 9 yk)9n,0pdyer 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 cory/mkg v7- 05nvgrp;s xrected 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 give xcxn1 eti 5q1/g.avq;s rise to a vision defect x i .nv5a;e1cq 1gt/qxthat 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 glax g0.jj bholn-gyai791.l; 01qym edpgth f:5ss?

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 usinzvt(*/na(mscjr9s jqt 0w )v4g a very large diameter objective in an astronomical4wsvjmvnt cj( * q9(ztr0/sa) 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 a refracting telescope. Suppo:w i)6qaurwzba(4 ua.se an opaque screen is placed in front of the lo4uwu rw()q6 a. a:aibzwer half 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 ++;x4uzr qbtgiform sensitivity throughout the visible spectrum, in which of the following cases would you be able to best dr+;q4+z txbg uistinguish between two 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 telescope hm e8u (c(mznqwp br(3dc*5h*r as 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 be able tzfte w)y76 :fxo see the greatest detail when using a:wtf )f xy6ez7 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 suf7eg4sb1yk8i+ sp m a)vfer 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 f4-v6dm p/gpribn9z+ b .k b5qnrom

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 refersq0kxxjqdfb 1rzl() ksr1 dj61 n/u7 7k 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 its resolving *f/ao2-izji l mwep58power assuming that all other factorsjilm25zi af ow8-/*ep 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 personnf po 3c7 )fz1iwyag-( has a far point of 18 cm. What lens (in diopters) will allow this person to see distant objects clearlfoi1p gc) yna- zf7w(3y?

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 do1zcj frq/3+away. What power of lens should be /od rqf+1zc 3jprescribed if the glass 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 wears glasses whose lenses have power of -0.c f/iv3k0yemqg -a.b;15 D. What is the person'se-;m /0a qkygbvic3 .f 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 fan+5t. w s6q,uw:gphearsightedness where the uncorrected ne qe as.pw5+:t6wu hng,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 10c+ b 56:mojinz pz07cs0 cm. She places reading glasses close to her eyes, and with thec0jns5i7pcz: b+ o mz6m 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 , mx;xc c+)-sjzl,au q25 cm from his eyes, if he wears glasses ,+,z)cm;qaxlcxj us - 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 nea:c) cdj *(x2fb6jn jzar point of 25 cm. What is the magnification of the lens foz2 nf*(xcbc: d6)jajjr that person when 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 focay:w9 ucr4wvx44i1 llz ssld;: l length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person whsl:c4s;i4 w:v1 9lylzw 4xudren 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.wij,* zln9e p. What is the magnification if the image is vpe*jzn.l, iw9iewed 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 converging lens of focal length 5.0 cm a ldscv-dpmzx9x48 )p(dr/ t6 vs a magnifying glass. What is tl9vp 8dxxcm p)ds/z(rv-dt6 4 he 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 at1f2u.bl8enh:fjy xrxof. gp6bds *5s7 1 pw ; magnifying glass. What is the magnificatiosj1bdfo1tu5r lx fn xe .pp8.; 2y6*hswg :bf7n 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 lensy7lws z+k)7x8 c mk-wqes of 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)7wkzsk m +-cqw y8l7x 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 lengt//4 +/wa51sps 3lhd x ovrumcqhs 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were ou c54q s1p/hmxw r+v/dal3/s to use any 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 200 c6f-xxdq: f/ a+paw9v;jxj ;tlm and its eyepiece has a focal lengtf f:v-+/ xlatqxwj;x paj;d6 9h 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 f nwbqk.znp:7pj ,i+(telescope with a magnification of 10. If the telescope has a converging lens of fb,iqp n:nk + (7wpzjf.ocal length 50 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 en cgjk4d f/fjtf -vs6bajh 77hl.td*4 .)2clastronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telesc /sj 7n)bvg74fhelk4*j .c-ddfh.fc l2atjt 6ope?

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. seu*gtr.n1dpq p:iw1i 0w 9m,If the telescope is limited to a length of 20 cm, what dpqr:,*seit.n1umg1p 0 9wwi 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 obja1.qiiohvd wr ;xo-41ective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eywr 1ox4.;d v iqoi-ha1estrain. A blood 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 of2jj qp,.0 f 5rfubz+xjg+y*kbjective 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 ,gy+u fbqff j*.x 2j+rp5zjk0mm 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 e csx83x r f(ruvk.i.;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 total magnificatv ( kicuresx.x; f38r.ion?

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 objecmru14gl :e+hg04 xbtptive with a focal length of 8.0 mm. What is the focal length of thg14lugm rh+p: t0ex4be 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 thex9b.y3,e0ese (sa fte constellation Orion has an angular separation of 10-5 rad. If the wavelength of the light from the system is ( 0be3.ex9asetef, ys500 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 objex ;;lmte,w/y kb hu( 0ov/ifv5cts which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the waveyx ;wmoh fev, (/i5bkv l;0tu/length 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 o/llb,miw;z mp*b j55ff 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution chanf mzbp5*bm5,jli ;w/l ge?

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 Hubb 1a /jsx3o4+r4:ot tzuf fjip7l,wbi)le Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelengt3or sil ipb/47j,t j 41:uf txofza+w)h is 500 nm?

参考答案:    

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

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 0.282655 second(s), 132 queries , Redis On.