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 cam57nu8(fh .scaoc bxd9era is determined by ds5f(9hca.n 78xcou b 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 camera is determyft)o v34jek5z n,vglz 9* 2wwined 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-f(cgo) g52wr * +zj (kzqp4ycdvilm distance may be varied by sliding the lens forward or backward with respect to the camera housing.5*c ok qdg(2j z+)wyvz(rc4pg If, with such a camera, a fuzzy picture is obtained, this means that

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
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that covers the film with a field of view that correspwj m91e4p1zr kaxt-2 xonds approximately to that of normal vision is referzja29tw x1ek p 41r-mxred 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
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that acts like a telescope to magnify ib76 hxzooiouc06f. 42vii0jzmages 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 film6jkfp9 o6j s5w with a wider field of view than that of the eye and through which objects appear smaller is 6sk fjp5wj 9o6referred 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 diffe6y7n y qrsly-6c )b3wyrent from the human 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 xkzb/) hfta-q .+ipe2 of light by the eye occurs at 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 -hxp72 n8bowk objects clearly is

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distance a r 5or9qhx*f556a0 ytwdi7nkat which an eye can see objects clearly 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 likelygrwkxw 176-gx4sq6 uo to suffer f 6gxo uwr6s4-wq kx1g7rom

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be correctyiu/zm cc;6k ja)/( 3 o0vtpired with

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 03 9hkp7webm tgives rise to a vision defect that can be corrected by mp b3e h7kt90wusing

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 pwm t, 577igm:rqa49kcb *rysperson is likely to suffer froqr *, :pbtkm7s7ci4gy9 5mrwa m

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usuamr lyj h .l/+azj: -mkdtjwz5l/uy ++g936mmblly be corrected 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
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too short from front to back,wo i30s3krj1lp8r 4 ; -itogz -lglwy) this gives rise to a vision defect that l;lg)0 3tklyo1o jzigr-rw- ips3w48 can be 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
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magnifying glass?x8m;s/; sgvbi

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very large diamet cz)c+ qn6ff r1fyr(b1dxqn7 /er objective in an astronomical telescopeq zyb rcff1)f6d(n7n r+/x 1qc is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a refracting telescopewk s7((sf(f:q*gkrpxrh5x, a. Suppose an opaque screen is placed in front of the lower half of the objectivefga((rss(*rhx , 7wkpf5k: q x 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 used has uniform sensi3h6k 0jt3jxw5bdrc c- tivity 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 objective len 6jdhr5kt30cc3 b -wjxs of the telescope used.)

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A refracting telescope has a magnificati h70rsd d;s0xeon $m$. 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 be abl)w, p1wc je5pay(nemag02, bue to see the greatest detail when a,a(cn0gmbp e pwe,w ju2 y)51using a microscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer npke2 s0a- oxcaq u85;from

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suf4l nv hwl)2(whfer 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 the abilithg)fop5k 8 t8g+bpa 0 ): rhcc-cgfk6ey 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 radari 5u co8ex3+ej :sl7jb dish is doubled, what happens to its resolving power assuming that all other factors remain icb o538ue l7exjj:+sunchanged? Its resolving power

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
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 diopteq;of:)mc )ke2qa v a: :e*:f nd1qzxh suet3.ers) will allow this person to see dist ek:tv:: maeqs3a.:q c ond2zu e*)qfx1e)f;hant objects clearly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly objects more than 70.0 5o s3me/o8lvr2a gs x1cm away. What power of lens should be oe 8 sr2g5l3a/1xvmos 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 wearymj-cx+xlp :m q,;j5 -ps s:lzs glasses whose lenses have power of -0.15 D. What is the person's far point if the glasses areqmml:;-zp syj p- lc+xjx:s 5, very close to the eyes?

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What power lens is needed to correct for farsightedness where the unc/ wyfoj;-(r crorrected near pof(;jcow r -/ryint is 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. Sh* its hqinwt n.uk8,+8e places reading glasses close to her eyes, and with them sheis+iq tu k*8n.8n,htw can comfortably read a newspaper at a distance 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 read a newspaper held 25 cm from his eyes, if he wears g k9/dt8* rvhzc+qs:a w2rfaq2lasses oa a9 t q:kq/vr*82hs fz+wcrd2f
+3.33 diopters. What is this person's near point?

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
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens ha4x: dthf,tvg/s a focal length of 10 cm. 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 infini:txh df/,4tg vty?

Correct Answer:    
Mark Problem
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal length of 10rgfs.)(a4 s*ni3w r3gj moy5n3e ol/gxsf p/4 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes aasxi ggly*3 rfgnsfopwjo/( /)n5 em4 3s.r34re 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 cm. What is the magnificapz0,ttj ne , zc(.vn8jkie*s3tion if the image is viewed eksij, vt(nzp,*.0jtzn e8c3 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 focal length 5.z6p9i/5kod*oz j b f,r0 cm as a magnifying glass. What is the o ,ib5f6j9 /pkrzzod* maximum possible magnification?

Correct Answer:    
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 magnifyibfgn.)..sd ny ng glass. What is the magnification if the perbd n .y).nsg.fson'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, 4.0 cm, 8.0 cvep,c i-xej3fgi)/ms8x/fq my.s:* xfyru 7.m, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is .xc )sse,/ry -x mu7i.fvyx ge3p /fm:i qjf8*the maximum magnification you could achieve?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lens-xzd/c;.fz v res of focal lengths 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 tvc;fz dx -zr./he lens separation for the maximum magnification telescope?

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 eyepiece ha01x7)xv yln ucs a focax1c ul0 7)nvyxl length 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 telescope with a magnification of 10. as v2yjnpy(rz9q r ;p((,)a wbIf the telescope has a cos ,y a9 n;q)(bpa(vpz(jyr2 wrnverging 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 astronomical telescope with a mag0gx55hdmjueg/ kb6,u nification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telesco, umekgbg0uhx 6/d5j5pe?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person is designing a 10X telescpn)/t-z(xb ef ope. If the telescope is limited to a length of 20 cm, whzp)etfbx - n(/at 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 objective lens of fth0d 5m21wtsiz.y4k docal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed0d htyd.m251z twis k4 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 objective lens of focal length 1.4 mm and an eyepiece of g:xa fim7li rw-n-+os ta440afocal lengtax4-migwfi4- t 0on:+ aar7s lh 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. What is the overall magnification?

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
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has an objective with a focal lengthwwrelh)toy0:b:h 1 m; of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separah wwohl1 :;m:)tybre0ted 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 objective with a focal a oha tujul70inl5wn.h ,27u+length of 8.0 mm. What is the focal length of the eyepiece to gint025 ,+luu uo7wla hnih a.j7ve 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 constellation ,:ae*mh sc 4lf sllresb5*) .sOrion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest aperture (diamet 5,*eels.4*rsl h:b)c sl famser) 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 bmfe:d r0n e5-,f/wqf1spg o;designed to resolve objects which are 0.010 mm apart. If the focal length of the gebfwfq /0fr;snpd,o :1e- m 5objective 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 changes from a diab qs5zcw5bv3;meter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolut53b qwv;z5 bscion change?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The 2.4-m reflecting Hubblhmq+yf1 egicl5fs+h kz ,5b-e / 5joi(e Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telesym,q5(fge/+ fishci l -k j hzo1+e55bcope 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 01:57 GMT+8 , Processed in 0.157992 second(s), 114 queries , Redis On.