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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 *pgi gf aa9e;kupsgcw: j7(2dra83t 0exposed in a camera is de k(ft7eis cawrdp9: *apg30; 8gj2u gatermined 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 fiao(kbnf2e8 b: lm 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 wgwj wu +xt :nqq*,:n7distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy piqw,jwnugw7n +x *tq::cture 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 wih3nmms)n- 81dapmhu -th a field of view that corresponds approximately to that of normal vision is referred th3uma)nn 8ph1-mmds - o 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 r.2 uzc+v b1o)s.k cvyieferred 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 tha vrlam1/1y lvzgraw,srun v9z46 5x 4)6;kxmtn that of the eye and through which objects appear smaller is referred to awuy 4t 1l/rxrxm gza41 )lvazn 69vsr;6mv5,ks 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 diy8cj tr-*u(mkfferent 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;4zr9(*qexeg na :9ypg iq gp6 of 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 *q 1zf8ds srk1at which an eye 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 eyb s 31vz0qrwu0e 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 to back, the plpk s)dibhh7z/fp)+ q u/ m2gqs9 h8/person is likely to suffer f)k79fm//pphlz)iq /gh+8sdqhbpu s 2 rom

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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 correv1c u z(hl7jnhl*xclu +;u8.jcted 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, thil8l- ueb; eau5s gives rise to a vision defect that can be correctedll-a u;8uee 5b 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, the tpc4a6 adz *)dyxwz46 person is likely to suff64aztda* w 6)4cpzxyder 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 bn:f; 3f0*;mx:9givpgqvd.b+xya o nf e 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 isg1u: /6w s1urb. 9hk5wi+txjw f3mbtu too short from front to back, this gives rise to a vision defect that can be corrected by uss6i kw3m b 51bw+wg/tjf t9uuu.rh :1xing

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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 glzvy+(i :zv.azd et -5pass?

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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 usin7gcpi(m pyt td7my u.:3g0wk 4g a very large diameter objective in an astronomical telesco7u3wg4:ckp i.(t yg7tdym0pmpe 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 refracting tiw1-xh;zv5-s ht-rjp( xa ,bmelescope. Suppose an opaque screen is placed in front of the lower half of thewa-i-mhj,5hb v(rz- sxt1p;x 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 ti)*+dn.y m-roi6 jd1bxb /gjmhe visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The lens referred to is the objective lens of thjyjb6mdm*db/i )gin.o r x -+1e 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 magni;bht l qk,amlquq*6/wx2m2j) fication $m$. 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 t,bhms4mr (odxg o(bj p.d;i53he greatest detail when using53b(j;m od. ixod,4bpg(r m hs 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 frokq. fg -c9)ktkm

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer frx-aj4 3vm nor)om

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The resolving power fl;4wzkwwin )4f (cl .of a microscope 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 doubled,v7 nli93 wesmgw,8 ku3 what happens to its resolving power assuming that all other factors remain unchanged? Its resolving 3s weuvin ,gkl7w 3m98power

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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. What lens (in diopters eg(p)uc,+)s pv mr3ii) will allow this person to see distant obje ie r)scui( pm,3+p)vgcts 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 (g41qxg3wdqy of lens should be pr3qxqg1 4dwyg( escribed 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 h:6rj icw0po 6vave power of -0.15 D. What is tho ipv6jr06:c we person'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 farp4qfwnfz--rx*w*3gdh .bto 0sightedness where the uncorrected near point iswfr onth*bdxg4 zf.3-* 0wq-p 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 pl r.-78xxzqm)yelz*wron b : ;cws:-auaces reading glasses close towm)bc-r -nr 8e7x:z*s.qa:w;o uxzyl her 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 cm from his eyes, if hhzmru 4/j2u7c5( fvqke wears glass2m(uu4czh5/k fq7 rvj es 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 has a near point of81vl m 4v4.*ujjkr cj2dg)s ft 25 cm. What is the magnification of the lens for that person when their eyes are focused at vks 1mcj8j)4g 2j .f ut4*lrvdinfinity?

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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 poin0/ gvz:r.z zrao let8(t of 25 cm. What is the m:8zzv tg0 l/r (zeao.ragnification 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 7.1hhw. cp0zkkg;wib3m6xs (4z5c uz/t0 cm. What is the magnification if the image is viewed by a relaxedsk1 5u; ix hpzk/w 4hzcmb(c wz6tg30. 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 converg e+sx646 f 0+kdtbtwwhing lens of focal length 5.0 cm as a magnifying glass. What is the0w+tbt efwdx 6 h+k6s4 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 (ifc5)l ci zej 1fb)z0vsw66f 5.0 cm as a magnifying glass. Whav) fb60jz l1ewc(5i6fizc)fst 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 lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm 92rb rz o/:v;grs02cbz9m uxe. If you were 2:xr bz vu;c029/gob merz9rs 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 of f, un3ga/(q eisocal 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 squ/a3seg n i(,eparation 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 -4ru s9v7eifyzm 51er 200 cm and its eyepiece has a focal length 9ru1 yv5i-e 7 srfe4zmof
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 .*asxf: wxsk0 0c(nr2,vj ff rqrt 1f5a magnification of 10. If the telescope has a converging lens of focal length 50 cm, s0 x,s wra c(njf52r01k*f:fqx.t fv rwhat 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 astronom7veqo /x;x nk4ical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm7onexk /v 4xq;, 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 theq:e1ab; p 8x 50cib7chwze f7 0:1ge7g fzeejd telescope is limited to a length of 20 cm, what is the approximate focal le:;1e0z zb :w8 axc7jee g75ebgpqf7hfic 10e dngth 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 objegxi+ ,4i-kc ructive lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample-xugii+cr , k4 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 f4 hrp8 qf92n ble7c)o1.4 mm and an eyepiece of focal length 20 mm, ad oh4blneq)c7p28 f9r fjusted for minimum eyestrain. A blood 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 microscope has an objective with a focal length of 3.00 mm and an e 1f27smf:yumjyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the tota ymsuf 7j:21fml 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 barreavt7dc / *fk9nl and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnificatnd*9kt/ v fc7aion 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 o4o,dpvq8lbb um(a4j e +ij/ s1f 10-5 rad. If the wavelength of the light from the system isb41ei/dovq 4jb p m,lua8j +(s 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 resolve objects which are 0.010 3*g ; swsv;dwymm apart. If the focal length of the objective is 4.0 cm and the wavelength * sg;w3dvsyw ;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 1.568awu hmkd )(t/6geyu mm as the illumination is increased. By what factor does the minimum angle o h6/w(guta6m ye uk8d)f 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 Eatyy5kqz 9h:e: .qc5barth orbit by the space shuttle. What angular re th9cb q5y:zeak5y: q.solution could this telescope achieve if the wavelength is 500 nm?

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