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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 the fio0 j-qchf s/ut7 .mdn)lm is exposed in a camera is detmqc.duo) 70j/n-s thfermined 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 camera is dete)m8ash.sk+ st lfpn1(rmined 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 the4 us:mkcwh q89 lens-film distance may be varied by sliding the lens forward orw9u4ks q hm8:c 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 witw2rd7ufru c+wkd2h++h a field of view that corresponds approximately to that of normal viukr2 h7c++2f +wdrdwusion 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 telesc6u*/bjaql n r.ope 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 vfz2 m6m) 96 ag2 p-xpybrpgb1hiew than that of the eye and through which objects appear smaller is reyb) 9mzh -gr6p2ma p6x bgf2p1ferred 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 fromvk73apo/ 3knx 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 bwzl 1hwqw45.1(yprk 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 eyelkw:yk1b) 9bfx 7x0nt 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 xhu mdp p 6vh3g03p73ccan 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 m :9ylmt4v;p0gyfa6 zto back, the person is likely to suff4lmt :z;y6y gaf0p9mv er 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 ba(ej/k*k v;; zq;57bh kdryfke 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 front to back, this giek3b )ibz g67:zyfed+5f*6iui ,kv mkves rise to a vision defecu3+v)fgifib*y:kzz6 mike7b5 6 dke, t that 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 ,to ka 9a+7hvoshort from front to back, the person is likely to suffer from79 o,h a+vaokt

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usuall cn0ih0z 2ya 7ulm21mpy 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 front to back, this givd52jkbur n8wurwf:(4 es rise to a vision defect that can be corrn(ujdk 2ru:8f4rw5w bected 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 magnifc1w5ats ki-+ilj-aub:m :og (: xgew o,d.(xuying 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 diameter objective in an/z 0b/cxqk sc2z )c3lu astronomical telescope iulb)0kc32qczxzs /c/ s

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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 teleh+k o1 hd c9wzs(k v*td6q/1soscope. Suppose an opaque screen is placed in fr6so1h+* 1q dvzh o9s/wk( kdtcont 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 sensitivity throughout the visible spew 1w9d. wjlten.:8sszt.3x xictrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The lens referred to is the obj.zxw isl 3w.: 19d.tjs8xtwneective 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 m8z6/*c4 s1c*jc agrb3l1p/ty ua cp i+fio o)uagnification $m$. 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 greateskrt(w g)7fl0a6aco.7vr adk a d6 d9.ut detail when using a m v7 k6 rawd.)ak a6o dgtla9r.0f7u(dcicroscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer :(o79j8y q 5me idozebfrom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer from 13qed4ydnilnjn*- +o

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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 r8ay7 a,mvr9vc6k dg90 wqf4 erefers 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:6s mngt)ey.w1raqp / radar dish is doubled, what happens to its resolving power assuming that alpe1a6 nm ts.w)gy/r:ql other 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 ha).epp/bygea b *a3ccjb11fu 4 s a far point of 18 cm. What lens (in diopters) will allow this person to seebe1p4.p)c/agf3beba 1j*uy c 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 atq * 1-*l,2trgy;/bghegg /voe zi4 doway. What power of lens should be pr;e2 go1 *yoegt*zhtg/-b iq/ gvrl,4described 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 -0.15 key8sf; 0wu a068mgm4aby4svD. What is the person s wk4amsm0b0 ge48fya6y;vu8 '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 correct for farsigs(1ekvr p 1,aohtedness where the uncorrected near point i (ar1kvs1,oeps 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 readih-ytf4ki3ja+m:br1 yng glasses close to her eyes, and with them she can comfortably read a newspaper a:ijhy-k ry4tm+ 3 1afbt 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 we.a;e34lwje z1cb2bkooc2gk 5 ars glasses obc.cj2e453kb2g z;ao ke1wl 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 /(gr b(px 8utrr948 4c+lnewg,jvffu of 10 cm. A person has a near point of 25 cm. What is the magnifixj p,+lffcr849rgn vb((g 4e8r/w tuucation 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. g7m0 lwdd kbkq4a*o40cf cw:8ffsx/2 A person has a near point of 25 cm. What is the magnification of the lens for that personbq4w2ffcc xm0* o:f0ld ds/kw4 7g8a k 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 i9x:60yj h csyk z)jp1fs the magnification if the) pcz01kyjxy: j9hs 6f 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 magnifyi m5qnde-iewk;eg(y);5jhj a 9h xw38f ng glass. What is fhmj;d(ja3wwyq)h;ee 5g- 89ie5n xkthe 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 l,gj8k iea-9dd; czqf9 hd qt5;ens of focal length 5.0 cm as a magnifying glass. What is the magnificatioiq-;dje f ;g89thdda,9 5 cqzkn 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 2.07r-:thb8wha hi w3+fq cm, 4.0 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 you could achhtb r-37wqhw:hf +a8iieve?

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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 *magw1(l1. hlu/wnm v cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two of twmvw(*u1nm1 all /g.h hese 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 ep5hyrxmqy p4c;6q. v8 yepiece has a focal length ofy.8q56 4 pvmxchr;pqy
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:r fm 9y5c3ytf 10. If the telescop:c3f r5y 9mftye has a converging 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 magnificatioop;zp .mglrl/-7/h9n. ap jn jn of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telescopn ag;-l.. jp/h7 /pn9ljzmorpe?

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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 tele8uu,ilxk:-b b scope is limited to a length of 20 cm, what is the approximate focalib,uk8ux:- lb 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 .ep-n ky.ll3a eyepiece of focal length 20 mm, adjusted for minimum eyestraie-l.kya .p3lnn. 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 1ha ksovu3w9b)5 ;t:6oy,e:kd2vl ryc .4 mm and 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 magn 9oblkcy):6ksw,a:v ot 5r32y eh; vduification?

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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 oi))6ns8(a,p sj t+p p.v h)6jdxi tcxmf 3.00 mm and an eyepiece of focal length 6.00 cm. xss6 v )axt,c+ (mipd))p.pjth in 68jIf 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-cmr8+ml airev+ / barrel and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magni i+mrl e+r8av/fication 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 Orqk(5em6 va 4jfion has 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 that can just resolve the t65jaf(k4meqv wo 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 desigfarw:av u.yda(7 k./ ke5anik42;lf n ned to resolve objects which are 0.010 mm apart. If the focal length of the objectiv.w eak ;ly.fk :745(nda2kr i/a vanufe 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 3.5 mm to 1.5 mm as the i7 rz*m sdtv y)9z(vdnjb13f/hllumination is increased. By what factor doesbyfz(m* td d1nv7)3sjh rz/v9 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 Su-1pk o*4rlg prg28lq pace Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve ifp4rl*1p ogl-rkgu 28q the wavelength is 500 nm?

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