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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: 匿名未登录  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 th,bh yvu5ddkdh a)j jy *4x(6q7e film is exposed in a camera is de57j*q v d6(by)dux4yhjhkd,atermined 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 reachin( c.+83nkffs jmah-nr g the film in a 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 camera the lens-film distance may be varied by slidqtmmr;22ph eop . 8p*jing the lens forward or backward with respect to the camera housing. If, with such a camrjmph2.p t2p;*eo8m q era, 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 vor0t 8(o rf8qa.n fbdg:h4,lgiew that corresponds approximately to that of normal vision is referred t af(gl 88.hrrg: d qo4,on0fbto 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 to magnify images is referredb 7w79v hlv a)w80-rttpf3lyk 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 fiee:/ylkji 0x-mtr)t 2fld of view than that of the eye and through which objects appear smaller is referre2i -)jtky r:l0/mefx td 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 differento z:bb txkvy2,d9:*gt 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 the eye occurs a3 eb)pfj1 b2ijt 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 is3by9bwj2fsq uu.pqm3ox9 i39 rgs 5 .u: yth+g

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The farthest distance a :684- a)vhuk vzrxmm00s-vhch tsb 1lt which an eye can see 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 from front t) :g7yxn+enl xjl3m 7lo*s 1bdo back, the person is likely to suffer fml )s1*eynon :dl lj+bx7x 73grom

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usually jq+bog hnh. 27be corrected 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 f2 .,ya*lt kmufront to back, this gives rise to a vision defect that can be correctedafl u .m*tyk2, 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 front to back, tez m4+xckr(-r (gwe :3jfu0sec ..rm the person is likely to suff+tmuze-ec(. e k(0gwf.jx3 :r rsrm4 cer 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 be2 wg4dg fh6(5tzeo i2i 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 todouoyxpgn7:1d6 9w f (9ptq, to short from front to back, this gives rise to a vision defect that can bw9f odt1py t 9gnq7xu:p, 6o(de 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 g rrf)fus/ki 4;40rc6r;yhbc llass?

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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 objectiz ,ner(xo 3*vxve in an astronomical telescopev,(rx3z*en xo 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 yko;cda-3r,w( nr84uz.l l wtby a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. ac zyl84-(. rlkt,;w3dro unw 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 vij-gpw4, d iyd-m nf-d5sible spectrum, in which of the following cases would you be abnpy -5- mg ,4-djddfiwle 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 magnificat 5m dh qh,+,9o1cvhftwion $m$. 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 the gryylfy fgr6h2l.5m5 ag:j):e peatest detail when using a h: ):yfg5rypl lmy2gj5a 6ef .microscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suf.e4 it 894d)an jj/s* skse1x j x*y1csnwnsh5fer 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 froz xqv: xa+33z b- dgb2 3utrmv0+vrlo3m

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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 refert37m,zfz wpw)lt r*y, s 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 ha(dhvw+ u; fzxp)c0 duyh n:9ozla73t/ ppens to its resolving power assuming that all ot9lnth0 fazd(uh/ p7+3;) zo:wvxcduyher 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 osrz y*xn3zu+ 40g:d ufar point of 18 cm. What lens (in diopters) will allow this person to see did+3ygr:z un 4*zs u0xostant 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 70tq ovhxaa;h -q :u.ol z*wv74mc o11e+.0 cm away. What power of lens should be hq4+lo1c;7- auzw xv1tqaehv moo* : .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)6p .8ihjuj y a qkd3d.6z*ruc whose lenses have power of -0.15 D. What is the person's far point if the glasses are very close to theh8ij *ukap. d3)y.6zu6drjc q 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 favimii1j *8d* frsightedness where the uncorrected near point isvimid i* *8f1j 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 kw.a ex ymzex*z d cw21).l4n(x )c;rsreading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is zn;2.(s w xxkr cw 4x) ze1)e*ymd.lcarequired?

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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 e wp5zgj;39:kvc 2nuwnyes, if he wears glasses c5u9w vjwn;zpkgn:3 2 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)8js dnpe5srg8 +*5mcf pk . 0hl.zsqt a focal length of 10 cm. A person has a near point of 25 cm. What is the magnificz l. pg qmsen8.) 5c j58p*r0ssdkt+hfation 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 focal length of 10 cm. A person has a near pointjcezk5 q3yhyg ousc)7ipl0; 8. 5)f jp of 25 cm. What is the magnification of the lens for that person when their eyes ayyc z3p5q5cihles kgf )jo 8u.;p7)0 jre 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 1lp0 8ddrtag)4s *ji:oaxdyfqen1/:l;2 f xt of 7.0 cm. What is the magnification if the image is viewed by a rela;r:idxf * )0 8nsdgla:f/1xl2qyt1 pdjota 4exed 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.o1gsz ,7 r+hcu0 cm as a magnifying glass. What is the maximum possible magnifu7sg z 1roc,+hication?

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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 magni+1(xqrvscb,4dw 8v ebfying glass. What is the magnification if the pebcv wsx+vb(4 e1 rdq,8rson'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 832pi (g al0q0 bu;smyc6 yaxaof focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use i6gax3 p0 bcl;muy2a8(s0yaq any two of these 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 lengtti49b5z 1vd6kpk7 aezhs 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 the lens separat61vkd4p ka 7be 59ziztion 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 eyep1ev qnmn ypj/q8m.-3riece has a focal length o eyp n./r- 3qvq1j8nmmf
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 astronoq3c j+ub)gqt/ . .u l3pow,,d vdst tm9g*r0mbmical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, whatd)+ .qtu*g9mtd.cj3t b3qguol /,0prs, vwbm 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 ma4reoo+x75s-f .ms1bace h(rcgnification of 10. If tcf +xc4br re1s-s.hoae5m 7(o he telescope 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. :l4i mfm v f-e1;u+wk fqllu+2If the telescope is limited to a length of 20 cm, what is the approximate focal length of the ob2f f+u i+l-m1;m:felq4ul kwvjective?

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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 of h0)sy0w :stv0:bilh8 rg ;d psfocal length 20 mm, adjusted for minimum eyestrain. A b;sdgb80:h00syt l) pir:vws hlood 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 and asjc(8 p7b(+4h y2 5mejgqyfvmn eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. Whasyhmp+ jmj(7 gfyv8b(42cq 5 et 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 and an jv12 ke jt nhw*:pco--x- 5+nvbv 1cwjeyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnificahnckv t12jx--e1c+p * v owwv 5jbj-:ntion?

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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 with a focal lenzqqbgww:xr0hd32xj()i c l4 + gth of 8.0 mm. What is the focal length of the eyepiece to give a total magnification of 2404g ljwcdiw3 xb 0(rqhx qz+):2?

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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 separatwzc;z d994en-uag7 uxion of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest ap -xweaz4u n;9 97cuzdgerture (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 which7:4 41 ur:k66kqfvjxqqtb yyc are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 6 :tbkqv4uy1 4:qkqrxfjy6c 7nm, 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 3.5 mx ydbe0zs +(ke+t5ba*. mf k6xm to 1.5 mm as the illuminatimkfbdk *ze 0 6.a+ey(bx+xt5son is increased. 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 Hubbleojc9i5wnk7n i yh49*p Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelengn o9 inj*4hp5i y7cw9kth is 500 nm?

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