https://webassign.org

 Forgot password?
 Register Now

 

      

Upload Images

Unused Images

Tips: allowed image types are: gif, jpg, jpeg, png, webp; When uploading is finished, thumbnails will be generated and shown above. You can either double click on the thumbnail or simply drag the thumbnail with your mouse, the image will be bound to the current problem and displayed below it.

Used Images in Current Log

Tips: What is shown in this column are all the images associated with this exam log. Those bound to a particular problem will also be displayed immediately underneath it; Deleting any images will make them to be transfered to the "Unused images" category.


PRACTICE：Physics Unit25: Optical Instrument
本Practice来源于https://webassign.org，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 324 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；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。本试卷的直接作答链接 https://webassign.org/test324.html
 Author: physics  Publish Date: 2023-05-01 10:01    Total Marks: 51 mks  Marks Awarded: _____________

User Name: No Login  Start Time: 23年05月01日 09:35  Switch to Whole-Paper Mode

Mark Problem
1#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The length of time the shutter is open and the film is exposed in a camera ik::6ztym 9 kvks determined :y kz:vmtk 69kby the

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The amount of light reaching the film in a cameraror6p2: jl(sqqlufi/337o5 5 (l isqdexc* it is determined by the

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a single-lens reflex camera the lens-film distance may be vd.o ): 33q.;tazzxx nkc;xw ,hs+pikiaried by sliding the lens3 ; x,dhkzso;3nkia xi .+xz. tqp)wc: forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained, this means that

Correct Answer:    
Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that covers the film with a field of view that corres+t+z8d3 elvlkzapb.af. an j ky8 lnsa859-) bponds approximately to that of normal vision is referred to azk+v5 8-.fs8+ 39dablpjztk.) bn l aaeyln8as a

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that acts like a telescop+fmaif3a)dtvd7 * /mvs l84hve to magnify images is referred to as a

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that coverse* l dzjv)x+h:60kdc g the film with a wider field of view than that of the eye and through which objects appear smaller is rjlk 0+gz:x6e* )hcddveferred to as a

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In which of the following ways is 4f1+(qwq h lik p- srnp s45w /oj:klygtaq3*7a camera different from the human eye?

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refraction of light by the eye occurs at 4*r h/hkll: mc )xylk-the

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The closest distance at which an ;leq f )5h9b0eaae9rseye can see objects clearly is

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distance at which an eye can see objects clearlyy3jk0nw duof12/dw-d is

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too long from front to baz3lr-h w 2yj4ick, the person is likely to suffer fro2 h34j wrylzi-m

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be corrected witg 5*u w,ad:ewqi99ozl6fu-nuh

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too long from front to back, this gives riset: l)u )..ai1uwgjukm to a vision defect that can bewu l1mj))..:taukg u i corrected by using

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too short from front to back, the person is likez zywe9-gq8uvhj++ gd*t* d8n ly to suffer f8 duj*dg*qy+g zhev+8wn t -z9rom

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually bxnu 3ild ,,igcma,7 :ye corrected with

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too short from front to back, 6s14i+jfxp90de94do *3oosiwh jvdz this gives rise to a vision defect that can be cos9dd jd 1ix*vw43p 4zshoo of9+0eji6rrected by using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magnm f6kts 2y2sv)ifying glass?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very large diameter objective in an astrono40 ,bcku2 d9 ushkmz)xmical telesc 9kmdb 4uk, cu20s)xzhope is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image fo.i8lfjcy:eu+l :-i1uovf g5.qatr6 z rmed by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will this have?1 ql:t y.zf.a igjcrivlo:5 u-e+u f68

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used has uniform sensitivity throughout the 7ce1a ym0 ;eeqvisible 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 objectivea cm7y 1;eqe0e lens of the telescope used.)

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A refracting telescope has a magnificatil23c svyc d-;/g9eo :aaeal,lon $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification?

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  With what color light would you expect4qa vrqb 7.hli7h 62yk to be able to see the greatest detail when using a micr ykahlbh6vi7q2.7 qr4 oscope?

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer frommkkj 30f khl+3

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors sufdpn5nd9ev:b 1s/hp0j, uu rusior)- g2z l,t 3fer from

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microscope refers to thc +yem(2u6sf ael7hf /6h n,hle ability to

Correct Answer:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the diameter of a radar dish is doubl sv5 h ,6g6czn vq;kpbi by*j()4mth(xed, what happens to its resolving power assuming that all other factors remain unchanged? Its rp(xv5bj 6,)*h ic t zbn;g(mk4h6s vyqesolving power

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A near-sighted person has a far point of 18 cm. What lens (in diopters) will udx/wx ,nmo1mhv49 a3allow this person to sxo /uwn h4v,1am 9dm3xee distant objects clearly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly obj3x5q)pfm) c1 8rfbh dgects more than 70.0 cm away. What power of lens mr3)c)xhp1gb58df qf should be prescribed if the glass is to be worn 1.00 cm in front of the eye?

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A nearsighted person wears glasses whose lenses have power ok * h3ep 2) dxsloxk(otnzn.yx//m 9g8z,sm .hf -0.15 D. What is the person's far point if the glasses are vs) /mnn lhkxsxd tkg82z o3/,ep.x .(hzym9 *oery close to the eyes?

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What power lens is needed y:19pqy 2m0 gsrt,bre to correct for farsightedness where the uncorrected near point isyq ert0grs 2 pm91:yb, 75 cm?

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a farsighted person is 100 cm. S*u +t rtr;l2rp0d f0azhe places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a di 2rrftpda00ztrul* +; stance of 25 cm. What lens power is required?

Correct Answer:    
Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A farsighted person can rea6 c9r:qn+9 nmku*oimq d a newspaper held 25 cm from his eyes, if he wears glasseu9m *mrc6qoinn k :9+qs of
+3.33 diopters. What is this person's near point?

Correct Answer:    
Mark Problem
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal length of 10 cm. A perswjr0x0+sc (hi(c2bj l u3fbc:yc95dk on has a near point of 25 cm. What is the magnification of the lens for that pe0j(w hfbd :bk c(j+9y23 sl5cc uir0xcrson when their eyes are focused at infinity?

Correct Answer:    
Mark Problem
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal length of 10 cm.49 hqvkic-1 jy A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at their near pov9y j ik-hq1c4int?

Correct Answer:    
Mark Problem
35#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying glass has a focal length of 7.0 cm. What is tc*o19 9+d m gmgbenbn9he magnification if the image is viewe+9 9d cn9g1mgnmb ebo*d by a relaxed eye?

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of fl1kh+2d ,2/zy/ u otwjmw 0ijdocal length 5.0 cm as a magnifying glass. What is the maximum possible m,wtdl0uy1h/w +2ij k2 jd mz/oagnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of foh4er,q3n9rc 8 s osu9vcal length 5.0 cm as a magnifying glass. What is the magn,c 3hq8v9euosr n94sr ification if the person's eye is relaxed?

Correct Answer:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of focal lengths 2.0 cm, 4g:m+6z( gkh5pi9yh zm.0 cm, 8.0 cm, and 16.0 cm. If ykgh(mi ph6y: g+9zmz5ou were to use any two of these lenses to build a telescope, what is the maximum magnification you could achieve?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and f ;ti j.ev/z,8uc, dpp16 cm. If you were to use any two of these lenses to build a telescope, what is the l.t p/ jz; evcifp,ud,8ens separation for the maximum magnification telescope?

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The objective of a telescope hake e*k;/- r1siwd .sgzpf;k5us a focal length of 200 cm and its eyepiece has a focal lengthzi1e ;rk* ;fk/ us5 pk-g.ewds of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical tery *40vi fss;eb;lhvrsj61( a lescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cms 1f4*rbys;;jehi v6(0r vlas, what is the focal length of the eyepiece?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical b v 0 fqh9ibvy:) rgb:2k;sh+ltelescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the t;vs l2qg yb9+k:):h 0brhib vfelescope?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person is designing a 10X telescope. If the telescope is lw 1 7xzr(vd3 qi6gut0.sra/ye imited to a length of 20 cm, what i6/w0dase3zrgq(v1rt i ux y7.s the approximate focal length of the objective?

Correct Answer:    
Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an objective lens of 5a6:0ty/ 86r;otvbjottsu gq p,8cy5kbru: pfocal 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 object6 c,s8/8tr p uyj6tb;tku5t:: ao0gqovrb5py ive. How far apart are the lenses?

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an objective lens o;edz.;zj olb )f 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 z;bd;leo. ) zjthe objective. What is the overall magnification?

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has an objective with a focal length of 3.00 mm/4 7hdo ;uhzl pas(ko4 and an eyepiece of focal lengtha4/7( hz4ukl odpso; h 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnification?

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has a 18-cm barrel and an obje, b mi+uit8jp3hb,6wj saw50tctive with a focal length of 8.0 mpt8, w3j+ibh,ws5imu tabj06 m. What is the focal length of the eyepiece to give a total magnification of 240?

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A binary star system in the constellation Orion has hst qf5 8go2*o+i5kft an angular separation of 10-5 rad. If the wavelength of the light from thh8 f it*5tfsg+5 q2kooe system is 500 nm, what is the smallest aperture (diameter) telescope that can just resolve the two stars?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope is designed to resolve objects which are 0.010 mm ji8 ae8zf1em. apart. If the focal length of the1i.8me j efaz8 objective is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter of the objective?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The pupil of a person's eye chan 8q)uy2mvn2a zzl mui8 cr74+iges from a diameter of 3.5 mm to 1.5 mm as the illuminatioz2lrv 8 qcy4i imu8nmuz 72a+)n is increased. By what factor does the minimum angle of resolution change?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The 2.4-m reflecting Hubble Space Telescope has been placexx76knyw 7 /jz(gr i-1 9rjunvd into Earth orbit by the space shuttle. What yj7z g(r/ukw-r1i6n x vj 7n9xangular resolution could this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
  • :
    •
    Total:51 mks Pass:30.6 mks Duration:Unlimited
    未答题: 已答题:0 答错题:
    当前第 题，此次Practice共有 51 道题

    试卷内容到此结束!   © 2024 https://webassign.org版权所有

    Archiver|Mobile Version|Jailroom|https://webassign.org

    2025-1-12 00:50 GMT+8 , Processed in 0.108742 second(s), 114 queries , Redis On.