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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://autodiscover.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://autodiscover.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

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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 k heb9,p7,r/y nu1 nipin a camera is depirk, ,h eypnb/971nutermined by the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The amount of light reaching the film in a camerazp*rtlxgh,9m+ q ,(9 3wx kuhi is determined by the

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a single-lens refle-qj37xm7 lkm h, ady8uw.:nnax camera the lens-film 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 obtaine qj:ndu3 y7-awkhl 7m.ax8m,n d, this means that

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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 fiel1 (k85nv 2jegmopr amvvlx8,1d of view that corresponds approximately to that of normal vision is referred tj2v1 ,18go v(xm8k vremlna p5o as a

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that acts like a telescrjp 9.v:1n kbyi 9gs/sope to magnify images is referred to as a

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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 fmebv- pd88i +1ei7rdrield of view than that of the eye and through wh8rr-ped+1 ibe v87midich objects appear smaller is referred to as a

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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 the human ey dmv*z0lsw8 v4e?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refract:u f/yjd fjf1v 0jj44mion of light by the eye occurs at the

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The closest distance al) nn4u jou;+t q(; avc.hm3tst which an eye can see objects clearly is

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The farthest distance at which an eye can see objects 9wbqwdj (r4 vyijfr3 0d +xa*4sf5f3dclearly is

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a person's eyeball 30q m: lpyaqxa.ejc,(is too long from front to back, the person is likely to su(qal3yac0j,e qm x.p: ffer from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usually be corrected9es( ;19 uvlquo6jd7pihwa l / with

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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 back, this gives ri1-j ltq40w zanse to a vision defect a1w40tjqnl-z that can be corrected by using

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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 frontb: hg9k49hyr0do: njz h(o)my to back, the person is likely to suffer fr:ngj )ozbkym:0o h9dh (yhr49om

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usually be c-iv(jy+6vak*w h.n vhorrected with

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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 gives rise to a mgjm/x;6kr (hvision defect tharmh 6 g(mk/;jxt can be corrected by using

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What type of lens isga:o d66f/ qe pem;hb(e+ fip6 a magnifying glass?

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An important reason for umuqb6 ppw;78dsing a very large diameter objective in an astronomical telescwbu 68pmd ;7pqope is

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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. Suppose an opaq5r5cn. gc ik 3jwmb98nue screen is placed in front of the lower half of the objective lens.k.cj 58n3mg9i5bn r wc What effect will this have?

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Assuming the film used has uniform td whim+v(b 0f0:cbbm.gnw r *x7f/6dsensitivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish r6b mbd +wih.d*/fbv 0f:w(mnc0tg x7 between two closely spaced stars? (The lens referred to is the objective lens of the telescope used.)

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A refracting telescope has a magn +zad1l zg-+ ikolat1o7tm *z2ification $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  With what color light woulu,z( qkcwn0. id you expect to be able to see the greatest detail when u(.i,un0zwcq k sing a microscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffei, zl)e5, qopo35o dgwr from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer .4 7 xzkaevew(from

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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 bqh+ 04ej8bu 6xlsp9 qto

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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 doubr :y)iuy0+ kfqr)) qkxjs6y/ qled, what happens to its resolving power assuming tha)kq) /q ri)s6j+f:ryu yxqy0kt all other factors remain unchanged? Its resolving power

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A near-sighted person has a far point of 18jnh+ 0hcbbsm mu*8;a0 cm. What lens (in diopters) will allow this person to see 8; mbchu+ h abjn00*msdistant objects clearly?

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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 away. Whapjb 2gbf+rk 8z ox+44gmmts()t power of lens should be prescribed if the glass is to be worngbt2bpr4k8xo++ jmm f)gz(s 4 1.00 cm in front of the eye?

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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 -0.15m5r bcz:qkwq -c bu842 D. What is the person's far point if the glasses are very clc 2 c:8bmkq45zrubwq-ose to the eyes?

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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 farsightedness where the unco*2k/ b*gx;osucv hde9rrected near point is veco2b 9 sdx/u;*k*gh75 cm?

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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 gl6c.t8 xkxa4q, kv 7kj9a*hoz vasses close to her eyes, and with them she can comfortably read a newspaper at a dista6azkqj ox ak *,x4k98tc.vh7vnce of 25 cm. What lens power is required?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A farsighted person can read a newspaper helddk pw n s0am6x:k,*1lu 25 cm from his eyes, if he wears gl1:mlx k*d,nk6spau 0w asses of
+3.33 diopters. What is this person's near point?

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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 near point of * 3p 6tt;ncopw9uu+p u25 cm. What is the magnificat3uw 6u tpp9ntuo +*;cpion of the lens for that person when their eyes are focused at infinity?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A magnifying lens has a fou5mowru,h/n g85vvp7rwn * 1a cal 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 vaur 5g8/vmwn7 wu *h1 po5,rntheir near point?

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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. o5xt7m.g9 dg.5;l caxjcr ;j l What is the magnification if the image is viewed by a ;5 j.7d glxmjtac9x5rc;og l.relaxed eye?

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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 glass. W3sb b3ej3q mz+hat is the maxime3 z ms+b3qj3bum possible magnification?

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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 lenapyt805/3k w wfw fdm hl7vb*dkln,/+gth 5.0 cm as a magnifying glass. What is the magnification if the person's efv0mlbw nty 87+fd *ldkkaph/w35, /wye is relaxed?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You have available lenses of foca n 3tr+d3iywh;zs2 aa;l 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 build a telescope, what is the maxim;32a+ni3hdr;ya z s twum magnification you could achieve?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8. ( q:ha4av c12bn1qhxa0 cm, and 16 cm. If you were to use any two of these lenses to build a telescope, what is the lens 1b4 acva( hnqq ax:21hseparation for the maximum magnification telescope?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The objective of a telescope has a nvmir7:*im;/nblt 0zfocal length of 200 cm and its eyepiece has a focal *z0 l/bnn i:m ;7irtvmlength of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A student constructs an astronomical tefjolu,f s 7/z1lescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of the euf/,js 17 lzofyepiece?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A student constructs an astronomical telescope with a:x 4q6 vaimw:g*igh y8 magnification of 10. If the telescope has a convqaw6:x:ivh 8ym4gi g*erging lens of focal length 50 cm, what is the resulting length of the telescope?

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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 is limit6yl ioj .oekn:8(4zhsxuqqk (-*enfo0 z q 14ted to a length of 20 cm, what is the approximate focal length of the l1noi:. z(sfe64n0(8jqtyk o k oqh* 4u-qzexobjective?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A microscope has an objective h ,4h6bo4lfa5,i6pfp ,uroablens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain,,,ap r66ouap45i4bob h flfh. A blood sample is placed 1.5 mm from the objective. How far apart are the lenses?

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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 anerevlf5vq;f 5b:4 zk/d an eyepiece of focal length 20 mm, adjusted for minimum eyestrvfkze l5;qvf:b 54r /eain. A blood sample is placed 1.5 mm from the objective. What is the overall magnification?

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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 33xbe)o3 c++ sznwn2uxsptxd*kp; i1length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separate+iz + ;nbxwx unsk3e1*3)pt 2xc3dpsod by 40.0 cm, what is the total magnification?

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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 nguqt7va-zz 7z 5*tegx e29:nf q2.et an objective with a focal length of 8.0 mm. What is the fo9 tvf-.n gt2q:5zzz27qntu exea*e7 gcal length of the eyepiece to give a total magnification of 240?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A binary star system in the cons wx e)33kzczosd-xy. -tellation Orion 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 (diameter) telescope that cx ysc x).- wd3z3koe-zan just resolve the two stars?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscopeqmpfi -l25y193ri6bk d1 cdqt is designed to resolve objects which are 0.010 mm apart. If the focal 6bc ir1ldq p25-9f1 iym3tkd qlength of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter of the objective?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pupil of a personkkqz2 zp13rigtlu, *7's eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is inc,71uk z2r iqkg3p* ltzreased. By what factor does the minimum angle of resolution change?

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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 been placed into Earth orbic/bo9 js2j meeobd.*-t :h a+gt by the space shuttle. What angular resolution could this telescope achieve if the wav.b-:o2ej*atd+omjbge s /c9h elength is 500 nm?

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