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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 in a camera is px)wrmt3 kz5ry9n6 ab dy+ c8:determined b6kx8y)r+dp9 rc bay 3 twm5:nzy 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 c3p.5ie yj4c8d bq,aet amera 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 reflex camera the lens-film distance may bej,y;g9j f2 zdu varied by sliding the lens forward or backward with respect to the camz9fy;,jjd2 ugera housing. If, with such a camera, a fuzzy picture is obtained, 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 thee*oa* k./j q w2kkt)ni7k; dqd film with a field of view that corresponds approximately to that of normal vision is .eq nqt*akw kk)k*2 7/doji d;referred to 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 telescope :hu8 /lwrd jl lxx38qat1i8;sto 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 ther.nrbn2o w m0j0bfx51 film with a wider field of view than that of the eye and thwn1 n0 m0.2orbfrb5jxrough which 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 thv+)if*c prc , 1-piiqhe human eye?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refraction of light by the eye occurs hw/b -k.m11r1ot7egs/)wq 7oodr nw k 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 at which an eye can see objects clea 9(y-wmec(tjb rly 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 p wfr.b5os+c 9see objects clearly 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 is too long frp j 7mmsv6drk:q*/ /hp.dgu,rom front to back, the person is likely to sufferh*:sdr /vj/. m,gdpupm q76rk 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 c1iyx)5ge/ss ) )-mj5x jyiarkorrected 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 rise to a vi/tj0x5m2hum9jl+aq hajb ( .qsion defect that can be corrected by using2x0ubqmjhtm. j 9 +l5ahj(q/a

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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 eyeball6x r 750k;xuap7tj yki is too short from front to back, the person is likely to s5uxpy76ar itjkk 70x ;uffer from

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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 cov955h vwyqglpgz el-kb r9:e5y6h j(8rrected 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 0reg05our88ia9e8 2uwgu - frtgd r+xrise to a vision defect that can gu -argt8r +2ogw 598 8frird0e0u uxebe 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 is a magnifying;6 kqm;o;il hd 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 using a very large diam,i+uwulbe+nd0a(mz c zx4*lf e t*f6/ u(k 4doeter objective in an astronomical telesco+lo (k*0tm (fwc,+n6d4/ d bau4l ei* xeuzzfupe 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 telemie2 3i+)h tzd,yohq*nn s( g.scope. Suppose an opaque screen ishn*hiidqnos+2g .m3)ty z(,e placed in front of the lower half of the objective lens. 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 sensit(0h1,q t kime.jy.sz iivity throughout the visible spectrum, i m0iz ejqh .,ikty(1s.n which 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.)

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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 magnification kf5 3w7bvkz-g $m$. 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 would you expect to be able to see thexw :q,k(4f3 t;m a3verfw a3ml greatest detail when using a microscop:(; tf3 v3xaf,3wlkmmew r aq4e?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffi;v7*2jv10 y- r t;6nza dgrqskru (koer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffe x7c56pisraf1c fek;4r 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 mic zq84a bl x+l02tcppm1roscope refers to the ability to

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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 doubled, what happens to its resolviog2yz7462qsu 8f/s( kldu.y-el /kw;al of ukng power assuming that all other factors remain unchange wo(squyok6ld. 28ze;4ks ukff g l/2uy7/-lad? 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 18 cm. What lens (in dio.u 7oko*h ) 5rxq.cyidpters) will allow this person to .x yuhc ki*)57o.qrd osee distant 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. What power of le pmq y4)mb5a;n-+g sin 42a4f:xkqehnns shou)na shb-4;m+kqn:5ym2gx e4aq 4fnpi ld be prescribed if the glass is to be worn 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 -0.1 3 a)a0xea f1nxn (j98nxi)l(murkm ;i5 D. What is the person's far point if the glasses are very ( 38ne max0 i9xa1;m)kaxln nur(ijf)close 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 uncorr no olhi5,/,vbected near noi/5bh,l v o,point is 75 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 rew8(l;n- :dsf rocx;j oading glasses close to her eyes, and with them she can coms-rdx(lf ;w nco:;jo8fortably read a newspaper at a distance 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 rea*/df5id.9 q7dbrera)zqb v1a d a newspaper held 25 cm from his eyes, if he wears glasses 9eqqbbd7.a1)fvz/r5 r* a didof
+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 5w 8kf 0snuwpb1scb5;)4md vp of 25 cm. What is the magnification of the lens for that person when their eyes are focused at infinitdb kpfswb s15u45); 8m ncpw0vy?

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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 focal length of 10 cm. btzce )3bjf; e86k8zz A person has a near point of 25 cm. What is the magnificatikb8zz3)etbe fc6; z8jon of the lens for that person when their eyes are focused at their 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. What is the magnifi0i lvb t 9 1rdt1/1bm iom9k.m83puan*g hu+tgcation if the image is vie/mt0ot3 l bpvi9tgir1ngd1uau m.+ 1b hk9m8*wed by a 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 5xn3 5: dchztc;.0 cm as a magnifying glass. What is the maximum poc3n 5dcxz:th ;ssible 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 7)q j,* ca8+ z blhws(scft9psfocal length 5.0 cm as a magnifying glass. What is thef)j as+9 sqpl7(t*bscz,8chw magnification if the person's eye 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 focal lengths 2.0 cm, 4.0 cm, 8.0 cm, 8+eoqvhg d+ -bsv0i/e 70)lco- zgxvtand 16.0 cm. If you were to use any two of these lenses to build a telhge+e0vvdqb ) c8xt-lo o/vsi-0z+7gescope, what is the maximum 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-v8bhp oc bi,i ()uqa0os9ee, 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you - 8ebvo(,h9p,0ai ob )c quisewere to use any two of these lenses to build a telescope, what is the lens separation 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 focal length of 200 cm and its eyep 5whnp6wo3.driece has a focal lengnp.dh 5ow63r wth 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 axp.bu4)9mwr7ow ex0fm6;xtfw,(9 i i jsb c8gstronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of the esopxbrwt9 8u60iec,x(jiw7g94)f m;.f w b xmyepiece?

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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 magnification of (5/cdy4x r*h bnv)j or r,nr8yzp jw:710. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of )pwjr:n4 /r,*j8hnr5r (dczy7 xyb ovthe 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 1yvbdyw( 887ma6fz: akb* i5bm 0X telescope. If the telescope is limited to a length of 20 cm, what is the app56awazf 7bykd:m(*b8bm v 8iyroximate focal length of the objective?

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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 lens of focal length 1.4 mm and an eyepiece o1 pd(5ktguz,;uuhf425ci* 7o df mdghf focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm ffid5od;h 4,g 7h *(t1gfu2c zkuum 5pdrom 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 objectiver3,q *abrf0p i6a(x/pw 20ic 1urpbne lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjustew f1p r/b6 3arrn*,piuc b(0 0pxeaq2id for minimum eyestrain. 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 length of8gd*p* +5odr:wkvc ye 3.00 mm and an eyedk pg +:dv*5*rcy8owepiece of focal length 6.00 cm. If the two lenses are separated 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 an objective w;ng (+w. 1fk 0se/yaob 2qvkklith a focal length of 8.0 mm. What is the focal lev.y2easbgoknlw1f;kq0 (+ k/ ngth 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 constellation Orion has an.me.5qminv0fzg 0m s +tyk; akz:.)tj angular separation of 10-5 rad. If the wavelength of the lighg:qszi v njaykmf 0.+z5.t;).me0kmt t from the system is 500 nm, what is the smallest aperture (diameter) telescope that can 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 microscope is designed to resolve objects which are 0.010 mm apartt; *y+lpbwz9j. If the focal lyw+;9 tzl*bpjength 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 person's eye changes from a diameter of 3iie4 i.jj1ho g15zxv*.5 mm to 1.5 mm as the illumination is increased. By what factor does.5ige1iozxh ij4 *j1v 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 Telescoibdg*tdj5 +b :4fotn 7w x7z.epe has been placed into Earth orbit by the space shuttle. What angular resolution could this tettxb5.+ o7 djfd:g 7ibn*4wzelescope achieve if the wavelength is 500 nm?

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