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 th6 h(r7qj6c+r4qkls+b 8nddnf e film is exposed in a camera is determined by the6nf c+jbkl7 q q(4rds+n dr6h8

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The amount of light reaching the film in a came/wk9rzv3+.kn/vdhy jdv)+,v phioz. ra 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 lemc6acdj+yjw3-r7+jrw m3 x 4g aw,0mt;p n;qens-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camejmxa ;,t a cm3 rp w7gw0y-j3rd4wm+c;jne 6q+ra, 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 fieldii1*o )jw4 buw of view that corresponds approximately to that of normal vision is referred to as 1w b) i*uwo4jia

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that act/e;adwc)d -s, tgh, b/l tc0ias like a telescope to magnify images is referred to as a

Correct Answer:    
Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that covers the film withh-kjg7m kc50 y e0e98rsk -la m7ev:gwdt2j0j a wider field of view than that of the eye and through which objects appe02rjvkl hm 0a7jycjg-e: wedm7 9 ek08 -ts5gkar smaller is referred to as a

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In which of the following ways is a camera different from the huma h zrhei- jkm2rwlb3 *; ugyvu0q p*s+a9pi106n eye?

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
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refraction of light by the eye occurs be +q wv1;9vtwat the

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The closest distance at which an eye can see*vg ;ev 4t5iu;jlh o3k 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 clearly m0qync .. qtp)egkk55 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 back, the person is likeye,6xzjlh p 42*1pfgxly to sue64p zxf1x2p h gjl*,yffer from

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be coryh:wx 8:)ylynv j(w 9 b7te;oorected with

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
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too long from front to back, this gives rise to a vis5**b,w l ,o k hvby vyntfs5ma,its153ion defect that can be cor, invbt55y5 s t bf**oylv,h1aw3 sm,krected 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, bf- cuo9n1i)* *ms7 ssh xm1sythe person is likely to su1m ohs7ynf19-*xssmc ibs)*u ffer from

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can ussa0scybo+qdcyv(-)cn ayl( 7 ./4hw nually be corrected with

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too short f 0x wgsq zzni+j :/vx-gt90fs9rom front to back, this gives rise to a vision defect s0ijx wqzz- xgnt / +v0:f9g9sthat can be corrected by using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magnifying glasn;yeu + v 0m .)yj,omkxzw7l9ps?

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
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very large diameter objective i;zqg t.bq4fk1 n an astronomical telqzk4t.g ; qfb1escope is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a refracting telescope. Supp 0 .rlobtpd gul22k4. -m0k;qvzd *lbdose an opaque screen is placed *4zbd.v kd .02 l-p;o lqbtur2mdkgl 0in front of the lower half of the objective lens. What effect will this have?

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
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film usek5y hp s1-:bkvd has uniform sensitivity throughout the visible spectrum, in wy 1p-kh5:ks bvhich of the following cases would you be able to best distinguish between two closely spaced stars? (The lens referred to is the objective lens of the telescope used.)

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
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A refracting telescope haswser 2u.jjoov- ,;x*f a magnification $m$. 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 expect to p3d9a z5;f2 xojdtilrnz rx/986sk9dbe able to see the greatest detail when using fp5ztzoi jd/9kld36 d89x 2 n9r xras;a microscope?

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 froevr e7j)ex6 l*v9s4e cm

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffer frwnr c)c, p7in;ge2v+(pohf 15p h:svnom

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microscopxqx v(:n)gom.yi e( 7oe refers to the ability to

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
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the diameter of a tvkgt ez .z6,a.) ehk(radar dish is doubled, what happens to its resolving power assuming tha6kt.t)a .ve,eg zk(hzt all other factors remain unchanged? Its resolving 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 ir2hckp+fw, v41an8 a (in diopters) will allow this person to see distant oc18k rvp4hwaf+ ai2n,bjects clearly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly objects more tltm)nuwid3/,: l3pj k+ agjw1han 70.0 cm away. What power of lens sho tgljnw)j umapl:+3 ,w/31kiduld 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*e:-bh skcbp)iyk , nhir*2aluav6:l5 k)o(g lenses have power of -0.15 D. What is the person's far point if the glasses are very close th his klby *aa2ugc)bl,rkv p)5-*n :o6k(e:io the eyes?

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
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What power lens is needed to correct for farsightedness where the u-(h8mdb-;ob3ut cslg ncorrected near po t38(mouhb-;gc bsd-lint is 75 cm?

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a farsighted perso zdh)rsp73r4 qx2g cixz 7k1(fn is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance 3 g1qfkr7z z srcx 7()ixpd4h2of 25 cm. What lens power is required?

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
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A farsighted person c* ybe+*n f42awlbg 3htan read a newspaper held 25 cm from his eyes, if he wears glbh*3nf4t w e2l*ga yb+asses 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 pe 7r8dtqajo**k rson has a near point of 25 cm. What is the magnification of the lens for that person wheq*jrdk* 7t8oa n their eyes are focused at infinity?

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
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal length of 10 cm. A person has a near point oft0uy* e9x)p yr8pml gmif k1d,.ag -;t 25 cm. What is the magnification of the lens for that petg)x -py ,9e;ypm mfl8 tak gid1u0.r*rson when their eyes are focused at their near point?

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 er tw:w3 ct o7fnu-0b) 0ldc8w1zkd 2ccm. What is the magnification if the image is viewed by a re1ew)tuf 2ccdw3tk r8 c7:d-0lbz wn 0olaxed eye?

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of focal lendtj*,jh2- vgm1 clus ,nudjrf+o*x3 0 gth 5.0 cm as a magnifying glass. What is the maximum possible magfvt*r no+,s-clmh1g0j*2 u ,3ddj xujnification?

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
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of focal length 5.0 cm as a magnifying glass. p .cn9htu/g4 txap2dilr/+h: What ipgrnu +t.p cih l:d92h4/xta/s the magnification 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 lengthsvcp,cgllyu- gt,tq,2+/0 s la 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 magnificl p y/u+l gac-0l,v,t2ct,q sgation 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.kft m s,+to3ypj*a7g, 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 the lens separation for the maximum magnification telescto ,g .jat3y7f*kmp +sope?

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The objective of a telescope has a focal length of 200 cm and its eyepie/*b sjxkr0lz. a5drz7 ce has a focal length5dzxa/ b rsk*z70 .jlr of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

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
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs ; a2vpnqlf5o.6 4ii1urx 7 1uewgeg7 dan astronomical telescope with a magnification of 10. If the tr p ilwv6a5u ;g7e 2417o.1qgudenxifelescope has a converging lens of focal length 50 cm, 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 astrono:( +4m3zk6aumhxs zm.: radtk t(+pn rmical telescope with a magnification of 10. If the tz n6t: rmkk sm+(xh.m(p3td zau:r+ 4aelescope has a converging lens of focal length 50 cm, what is the resulting length of the telescope?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person is designing a 10X telescope. If :oxn0sd ;,p 5puow;lc the telescope is limited to a length of 20 cw ;ox;onlp5c, psd:0u m, what is 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 objpf9eqdtti pvq.;8j *6+t .lx xective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum t pd8t*+je lxp fi.v.txq9;6 qeyestrain. A blood sample is placed 1.5 mm from the objective. How far apart are the lenses?

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an obj;palv.lgs6i s53 v+m sective 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. What is the ovps ls6+ lamv3vg5i.;serall 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 and an eg-rn :iv93 s ezzuup7.mq .o6gyepiece of focal length 6.00 cm. If the two lenses are separated qgsmug73.:pi-9o v 6nzr ez.u 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 bar)p1xi rnxr3 w8a3) mo;m 8foyxrel and an objective with a focal length of 8.0 mm. What is the fo38 orx xma;ixon)ry1wpfm ) 38cal length of the eyepiece to give a total magnification of 240?

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A binary star system in the consztjsno ) cff)/v +,)yttellation Orion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, wh)zoty j c)fs nv,+/)ftat is the smallest aperture (diameter) telescope that can just resolve the two stars?

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
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope is d juh9 ,hu+uo9fesigned to resolve objects which are 0.010 mm apart. If the focal length of the obj 9h9jf,ouh +uuective is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter of the objective?

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
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The pupil of a person's eye changes from a diameter c afa;..l3afldm, ,d) yq(d xtof 3.5 mm to 1.5 mm as the if3 xd,ad( cm; dallq.y) ,fat.llumination 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 Telev/- si(obn uj0scope has been placed into Earth orbit by thi n(v/ so0u-bje space shuttle. What angular 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 00:44 GMT+8 , Processed in 0.180997 second(s), 114 queries , Redis On.