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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://autoconfig.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://autoconfig.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 filmzx+ ,i.wjfga . is exposed in a camera is deg+xiz, .aw. jftermined 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 caw)g 7n*2zin:4kqe 8w9(te5fxy kdpbg mera 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-9cyb sw/,i0f32 dwj 1az:jm7 r/si sxsfilm distance may be varied by sliding the leair idj zj:c w7/0/,3f2syssm x19swbns forward or backward with respect to the camera 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 the film with a field of view that corresponds apprkh: ao3o;2k *w/ydtimh -)g msljv21doximately to thatdghd3* s i1j2a w)v2:tml/yook;-mkh of normal vision is 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 likevoo,q9 /64d7zm dfuev a telescope 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 field of view than that ofu33m v/,w,hhc quvm :p the eye and thmh:vmquu,v h pw3c/, 3rough 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 follow2vp btj(;q mpgz7gik5( ,+4xnbmp m ;zing ways is a camera different from the 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 beq ri ixy4 +(y.rb5u-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 at which an eye1 b tu5ti+lyvky(+lj ; 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 ma)gt6y* ux*cobjects 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 from front to backhnq9:z( ukh9sx-a 72 rnwzmo), the person is likely to sufferhkosm)2z9w :n79un x -zq (har 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 corrected wit-q5f:w mvf6ye1hb- m;- vxo- ess:sru h

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the human eyeball6hor73nmb91 ;iw cxp p is too long from front to back, this gives rise to a vision defect thatbn3h1c ;x7impr 96wop 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 fr;+3xs)t t(tx rze2bvc ont to back, the person is likely to s; s+3x)bx2t e( ztvctruffer 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 correctedstb/z(mgv -qni-+8 jmac2mp6 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 front972d ovyprkm( to back, this gives rise to a vision defect that can be corrected by using7r2 vdo(y9k pm

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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 glass?gz-;r4l r f/6ngit9mn

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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 diameter n +cekc31e- ceobjective in an astronomicalk3 eceenc-+ 1c telescope 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 req3 z73:fw0crra x c//cs/yhxy fracting telescope. Suppose an opaque screen is placed in front of the lower half of the os3fr3x/:wcc y rx7 zaq/0 y/hcbjective 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 sensitivity throughout the visible s aw39qow)1b opwbzs75dr :ho) pectrum, in which of the following cases would you be 9 prwb)a51 7:owh3o dq)obszw 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 telesco.yvt nduq x-6)sty)9vpe has a magnification $m$. 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 tso0- yiu3hxffu 8j0om;lg/* to see the greatest detail when o- sg8tlo0 0 /fmujuxhy*if;3using 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 suffer lc7wqf( ) 8d2mllp gex9p0wx/from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors su(p0c.bf*v 9boenl/jx f )h*xmffer 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 85cvdsvot qbbn 5b .18to

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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 resolving pw+ym :w 9hqhmh ijj z5eh:)a61w6 6ggfower assuming that all other factors remain uncw:wgj6)jgha6 5f m q69 ze+iy1m :hhwhhanged? 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. Whfdh 3x,s1o umq8ms3d .at lens (in diopters) will allow this person to see distantu3q,md h 1x.8fsd3smo 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 df + brd2:now,lens should be prescribed if t bro+,w2df: dnhe 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 -jg7 siy50imc 8o d7fr:0.15 D. What is the personoi dymcij :g7 7fr058s's far point if the glasses are very 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 coqf7 v1j1v/y wr*z 1 z w/7r(oslw9efserrect for farsightedness where the uncorrected nearwrfzw 9v1r1ywjo f 7q( /e7z/e*s ls1v 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. ld80 xd.s cpt6 She places reading glasses close to t.dcl06 pds 8xher eyes, and with them she can comfortably 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 read a newspaper held 25 cm2q-e+tfu) n9frlqo c+jij7e 2 from his eyes, if he wears g +l27rtoe-uijfenq 9q 2+jf)classes 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 16b56njv+nz d1vo1+ny b duzt90 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their ev6d61+bj nz ovu yd+1ztbnn59yes 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 focal length of 10 cm. A person has a near ptf j9b6x;tpy:oint of 25 cm. What is the magnifica69bpjtx:; fty tion 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 magnificatn*lfm93c-gwa9jn ,p5ej1r-v+l b(jvl*htmw ion if the image is viewed b g*pjl,j9+t-v5njr9bvw -cln e31 *f(m wamlhy 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 5.0 cm apbp/yrjtuha..,dnq24c9(5a d7fbl1goe: h as a magnifying glass. What is the qhp47. 1r jad cn9. (hb,ug2f ao:lb5dyetpa/maximum 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 l5t3 tc yyz3yu/w.xo3oens of focal length 5.0 cm as a magnifying glass. W.yxtw/3 c3t zuooy5 y3hat is the 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 lengqcm b(5v- o;o plql5+sths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of thescv5bl( s5+oqm p l-o;qe lenses to build a telescope, 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 2.0 cm, 4.0 cm, 8.0ef f5(;rztc(. gj ecegre( *7r cm, and 16 cm. If you were to use any two of these lenses to build a telescope, what is the lens separation fo; ( eez(e*g.f7rergjfcc(5t r r 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 eyepiece ,lncqu04-mbhkp18 :tt k rgm) has ab c1npm4 uk8q 0gtr:h-,k mtl) focal length 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 telescope with a magnification of 10. If:ou2y4vga2u ;fwbx. nn r/2te3b4y rr the telescope has a converging lens b/g3r2bwt: .rf uyyne nr44xvo 2u ;a2of focal length 50 cm, what is the focal length of the eyepiece?

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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 w(j2-c 7irduyzwq 3z+k ith a magnification of 10. If the tjd-kwz u37qz 2c+r(yielescope has a converging 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 4 1olk5 ikv)bm+rma*h jc,)7y :jq qiyis limited to a length of 20 cm, what is the approximate focal length of thejmcl)4+qy )q1v5:hrij,m k bioay7*k 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 lengthqfr h4i-h 1sn) 1.4 mm and an eyepiece of focal length 20 mm, adjusted for)i hs-1nh rqf4 minimum eyestrain. 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 focalsdwhx gurqgww32/7;, length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample idqh/7w rx, g3wwsu2;gs 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 of 3.00 mm andc(g(dk*ev)9nhh7tx/ s :zjoq an eyepidn:jhose(t )k gvz /c9 h*(qx7ece 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 jv2lo0b pjo8z v23z c4ai 23mjobjective with a focal length of 8.0 mm. What is the focal length of the eyepiece to give a 3moj4v28 va 3c2j2iojlp0 zbztotal 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 angular separation ofh3 4jk khe (+0nkbo.yg 10-5 rad. If the wavelength of the light from the system is 500 nmbh3oyg 0h ek4jk.+k(n, 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 apart (*i- z6y nqouc1qr0ova 85khc. If the focal length of the objective is 4.0 cm and the wavelen i-6c8kq*zh uocvr 0n5y1q(a ogth 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 fromgx vk ufqt7+mojq-5(uw4 3i p0 a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By whap (qwfu mqo k-g ut4vi5xj7+30t 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 b2nh mu nkruhyj639f04een placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength is 500 3fjhuhny4 m2n9u6 kr0 nm?

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