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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 v/s /fg*d7qnlanh 4 9z+s:rk nis open and the film is exposed in a camera is determined by tn:/dg a*/vrq4sz+7n9l khfnshe

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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 camera i ++e6spylw /eks 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 dista,c5ne -qob;winime . )u,ut .g(iv.hince may be varied by sliding the lens forward or backwaei)(.c -bgei uh qvit.,n,.; oiuw5mnrd 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 ts;.cqok dep9q1 2e g01 kiubn6uy/ 3byhe film with a field of view that corresponds approximately to that of normal visio.p/6 un3bkkyqc10 eie y;o 2sb9g ud1qn 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 to magnify images is referred to as arix gd e8vrc7d1 :,cz6

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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 99rta:q cqw -hb+t*fse 0x.gla wider field of view than that of the eye and through which objects appear smalg +0cbttxfe.s 9*hq 9:rqal w-ler 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 dl( 518 gh3okc1.0oe qm)wktl djs(r vnifferent 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 dfr/j1 rgt2 i*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 cl wc7v2(1emzis

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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 4 vc2c;2k):ka osjhbfclearly 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 back, +x7j2ryh k2f cthe person is likely to suffer f72r kh2 x+fyjcrom

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can q,3 lp))w bkihusually be 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 fromk 4f4cjyer/u4wxspf3kanh. y6g c-v.: 3 /jjb front to back, this gives rise to a vision defect that can be corrected by us3/py.wjxafkfrju4sbnhc j4vck.6y34e g/- : ing

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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 fro aln2) nrt-y 27a5glq wll0d fl6n,:ebm front to back, the person is likely to sua g2 dl2ln 6lqlab5,enfn7r -ty)lw0:ffer 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 correc.1vcl 3u0y2pmvv *d uuted 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 sc7un 6a6ayd/ bhort from front to back, this gives rise to a vision defenb/67udya ca6 ct that 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 is a magnifying glassqa 0jhqq1ncm c 93a(6:tprk a-?

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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 lc:0grco* m f;earge diameter objective in an astronomicalr* ; mfe:o0gcc 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 formepif tct7bao)-k(;) xad by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will (t i-x7oc)p tf;)aa kbthis 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 n:my) qgnxw*) tbc 97x-yes1ouniform sensitivity throughout the visible spectrum, in which of the following cases would you be able to best diswy x s7:bce)qtx nm*o9y gn)-1tinguish 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 magnificati5j qq9k bf(lka2o;.u, q u kn1/xs2 )n1fswvxnon $m$. 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 bt/ 87n*j, jgmadw (naable to see the greatest detail when using a mi8dn/jn wa7 b(t* g,mjacroscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer3.txina9 ,c vo from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors su6kx ),xaxw tpqjx -i*,ffer 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 micros). da 8rt2ii9ibsc t7xcope 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 doublv6zk ye0 enid /3(u3y,xo wno1ed, what happens to its resolving power assuming that all other factors remain unchanged? Its resovnex (1uny/ke3,io 6wdzo0y 3 lving 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. *gh 8:1rpdv lt What lens (in diopters) will allow this person to see distanp:8lg dh1*r vtt 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. .92: dsaxwxwp What power of lens should b s9 w:2w.xapxde 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 leg ln4 bzut95*nnses have power of -0.15 D. What is the person's far point if the glasses are very close to the e5l* n4z9bgt unyes?

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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 uncorrected n5wjy7-a(v;gbloe;t s 7x ,oosef6 t)j earsjg7-f eowyes)ovojabt, ; t7xl 56;( 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 farsbu7k5imuyv4m)p wo 1/ ighted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper 4) /my7 v5ubkoimp1uwat 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 eyes, if he weam2*eq kfm( :firs gla (*ffk eqmim2:sses 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 perw*xmdul :tm ul+wr v:* /*0gxtson has a near point of 25 cm. What is the magnificwrvl gw:u*u+md*xmt 0*lx/:t ation 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 ph u).sj+a)wt 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 a+w. t puah)js)t 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 lengthpeo kv)j4g :*fvza:a - of 7.0 cm. What is the magnification if the image is vzk- vgp:a4j* eaf:vo )iewed 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 magnify juqu/4:e,f :hgu nj:eing glass. What is thnu:g u /u4e:ej,hf: qje 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 lens of focal length 5.0 cm as a magnifying g1n )k1xqlsvw sw+-hgzd0(vv8lass. What is the hwxs-g)wv( z8v nl1sqvk1+d 0magnification 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, and(sjakwwbz, 99 : q:csh 16.0 cm. z:kw9,sqw: bacsj (9h If you were to use 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 o+r mm,dr/y02zx5zry8 r2uh hgf focal lengths 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 separation for the maximum magr2y2 r md5/8,r yrzzhx 0+ughmnification 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 tel z u( rwssfle,3n;gada7 2gn/vq5 sr06escope has a focal length of 200 cm and its eyepiece has a f0uv(,wz 75q 6gf/aaersrs dn s3;g 2nlocal 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 magnifico:673 3va ldd7tkp zkkation of 10. If the telescope has a converging lens of focal length 50 cm, what isd6k p3:t3 odlak77kz v 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 magdz6 8pr (j+fcpnification of 10. If the telescope has a converging lens of focal (+p6pcfzrdj8 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 limited to a lengclcod7 1wfc )d9e roy *dt ;u9mf;2n9pth oo d2ypm *1etr;f cd99)u9lf7;d co wncf 20 cm, what is the approximate 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 mtpzqo8 je ;0f:m and an eyepiece of focal length 20 mm, adjusted for minimum eyesfje;:pozqt0 8 train. 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 3ga)h;zl iy 3eand an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. What is the overall magnificatiyl)3eiah; 3gzon?

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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 w22of x3q2xcfo l+m(9jw:zo tj ith a focal length of 3.00 mm and an eyepiece of focal length 6.fm to2:cxzx lf jwo9223+joq( 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 barreqgg l6 ,jb(fwg0 yx fiwmrr,n06)s;o1l and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to give ywg,00i mlo swfqjg x (br,6r) nf61g;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 Opa dxg.9**p wkgd.d2o rion has an angular separation of 10-5 rad. If the wavelength of the light from the system 2xd*p*wddk.g9 g a po.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 k-.e4c kvu jh1 20gwmuresolve objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wa1k e4 0u-whu2.gc jvkmvelength 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 rf wmiy *+)d 9/sq/u4t/nw knechanges from a diameter of 3.5 mm to 1.5 mm as the illumination is increased.4w 9qnw+s/ i *fmne /dt)yu/kr 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 Eart, h soj6ab5smog 7p,yag/a -g8h orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelosjhay/ag -b,gm567 ,o g8pasength is 500 nm?

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