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习题练习：Physics Unit25: Optical Instruments
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 作者: admin  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 xvpwp 0iz-ox ye3p.sehu1o- ,d32y*f camera is determined by theds . z f,0oe2 puh 3-oxy1*p-iwvpy3xe

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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 ams7* yb6 o r6xobq6m ty0azt8c/y :z/9clu 8ss camera 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 c2 /yellt9wkp* amera the lens-film distance may be varied by sliding the lens for tel* l2wp9/kyward 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 witx ez9uh5zcs2,3bq.w;es;f 7zv vy4uhh a field of view that corresponds approximately to that of normal visiov4.zs , uxfbhq;7zz;e2s5v yuwce3 h9n 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 like a telescope*)fr*4 bj:2jsao rme u 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 with808 l vwd godh5,gib(j a wider field of view than that of the eye and through whicv,5gldgo 8(djiwb8h 0h 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 dv mv e5bgi9heor9/6e6 ifferent 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 )hgo* (ytn)erof 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 at which an eye can see objects clearly 3tluv u/ty7d3is

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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 clearly6c+ppjw9cd +xhd /s7 q 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 b62v18 39ntqhataq iz;ji s.irack, the person is likely to sufferz s39 ijrqitn12itq8vah ;6a. 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 wk c m51,eg ssu2g+2hnnith

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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 tou3 ukyr2 r+sb6 a vision defect that can be corrected by usinkry+3 bru6s u2g

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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 0wwi;2 iy huoik1 m-;dtoo short from front to back, the person is likely to shd2-u w 01;wi;miiykouffer 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 sy p6isj*4j3 ktp )-r-hsjzp. be corrected 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 f av9 x x,e-+ypfri w(q:stlsi -d5+zs7ront to back, this gives rise to a vision defect that can be- rwisl+tx5- di(zpxs7qsyve a:+f 9, 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 glassk- kb12( f99eu1shcier)f npm?

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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 atfr:*qob ,i)lix6u 6it nz(8o very large diameter objective in an astronomical telesc66roi8zi:ot t fq,bn(i *lu x)ope 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 b8,xiu0 e9,o8qc39 u dsbafev gy a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the obd08ae8x 9fb, ou,e q9ivcgs3u jective 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 sensitivl rl+24h cbe ;me6gx9ui+aa/jity throughout the visible spectrum, in which of the following cases would you be able 2/ug+x64mi9;ce b+ r lhajleato 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 p;*a cm7qk fg1a 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 to sejh8- .)t* vlt6ms)c1f4;yrx u gtjytme the greatest detail when using a microsl fr)18cygst.4)tm t;* tumvj6-h xy jcope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer f 2 q3yie p4swj*n(hte-rom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer from9mk4vuy, ar+x

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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,,aq tsz)2zy hm j.t6.9gsd go 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 re qagp8*-m 6muisolving power assuming that all other factors remain unchanged? Its i*muamqp- g 86resolving 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 i mzadj)cg6gmh -+;1tof 18 cm. What lens (in diopters) will allow this person to mt1 gmzjgadc) 6+hi;-see 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 objefbs,m 6 xqgv4+p98hp kcts more than 70.0 cm away. What power of lens should be prescribed if the glass h9kmxpf4,pg+q8bs6v 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 -0.15 ngnv s.x g7z89fkd5lz0b+d1 s D. What is the person's zfk z98g 7lngnd.s1+ vbxd 0s5far 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 correct for farsightedness wta+y9 +oxcn9 shere the uncorrected near point is 7cy9nsto+a 9 +x5 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 reamm z7ln36vgz 8xzj :7 .jwfwk7ding glasses close to her eyes, and with them she can comfortagj3 8fvw zj67. l:nxm7w 7mzkzbly 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 cm from his ep. h)wf 8:e ravdkl)22uka3dnyes, if he wears glf v.h p8)3kala d2)uw:dn2 rkeasses 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 ha 9)kv w(dob5kbz0ke n b:b8b,cs a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at wbn)b ok8e,059cvbk d b(kzb: 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 agylamq *p:7mu+h;m esgcr 258 near point of 25 cm. What is the magnificq8;ram yhg gsmcl5u+ 27m: *peation 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-:qa)(s: f7l 1rvt 4mskcbeun magnification if the e(l cu7f1:amn)4vs q:kr-t bs image is viewed 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 5.0 cm as a magnifying grl pjtqg;x,sit y/bi7 2pv t.m3 e3+3glass. What is the maximum possibl mgy+v2qt/es jb i tlpx;33tr37,pi.g e 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 length 5.0 cm as a magnifyingxox3 )xypmk1qq7s ib)l,6x8 p glass. What is the magnification if the person's eye is relaxpqx q)xbm,yi 87x6x3)o1plks ed?

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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, h, 9: tzb gkzfxtgs6284.0 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 magnification ygx6 hf:g 9zt2t bk8,szou 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+bbs* ouey3 .0 cm, and 16 cm. If you were to use any two of these lenses to build a telescope, what is the lens*bye, oq3+ubs 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 cd lyy64e9pa; yl4f8i pm and its eyepiece has a focal lengt l4a 9pflye4i dyp;y68h 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. Izw2g9n anq11wef6ez / , cys3kf the telescope has a con/ 621zqeg yfzknc13sw ,we 9anverging lens of 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 with a magnification of 10. Ifv k-execo: 7a9 the telescope has a converging lens of focal length 50 cm, what is tox9 aeevk c-:7he 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 u tg4mp +3ozs.a 10X telescope. If the telescope is limited to a length of 20 cm, what is the apprpszt4ug+ o.m3oximate 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 ob uobfub( b8h67jective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted f7 (h uubo8bb6for 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 objecti sajjed 1c, e(qz/xe),ve lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A bl 1qaseex dze /cj)j(,,ood 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 microscop,:38b .ms/2kmzdl v q.gptir oe has an objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00opg , m. kd mivqs.82l3tr/:bz 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 objectif-qpk,:n d+ gwkp79w vve with a focal length of 8.0 mm. What is the focal length of the eyepiece to give d wgqf7n,k-p:w+ 9kpva 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 ;peoql8qa */p-o 6vjj 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 tpq;6 lvaq8pj o/ej-o*hat 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 whiche j w)e4a3gjs7v-r 7gg are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter of thj7er47v s)j-gw3eg ga e 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 /hn(: k0is4 hod)qu cj3.5 mm to 1.5 mm as the illumination is increased. By what factor does the min/n0)4ih qc hu j(k:dsoimum 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 Spaiz3 s*/n3(fy4b ikuevce Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this tel3e bvs/zku4 yni( 3fi*escope achieve if the wavelength is 500 nm?

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