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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 andqa nmfg 45pz4cy8e1*8r 3cbu u the film is exposed in a camera is determined by th 5u8qc3gzfnbuy14 pm ra84c* ee

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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-yl-yd1k b8j(kqrp 0v 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 dist/;wfosns/)y q8 dbq ;jance may be varied by sliding the lens forward or backward with respect to the 8yo/s/d fj;wnqq )s;bcamera 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 with a field of vp9 ;dthialb; 24b i6xdiew that corresponds approximately to that of normal vision is refehpt4 6i9xil2d b;b ad;rred 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 ah*uk9- ntzm;d er9, kes 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 thal65qqvz*:k*n5tn+ x ;ng ; 3kbgyood un that of the eye3b5v*q: nng5tlxu+qozng;dk 6y;k* o and through which 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 differk73avyc(f vd 2ent 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 l:bw.1ero*v 2w f3bkcuight 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 c6 mbmr l/n9v/flearly 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 can see objecdrvp c0)f6l.dts 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 f(kp;)2 b2,jgpewkwwerom front to back, the person is likely to suf)e wbkkjw22; eg( pp,wfer 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 corrjokj 9+a( -ilxckm9(,xk;tv oected 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 gives rise to a visi kt89ct6c) 7q;pyeleq,v p5kion tqc8k qpc9k)6 e5l ;vtiey7p, defect 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 shny79sek bp+. wort from front to back, the person is likely to suffer fro 9byekp nw.s7+m

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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 corp fs h5q4c2;nrrected 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 back7-9szpl gq -yn, this gives rise to a vision defect that can be 9nq-l-ysgz7 pcorrected 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 x t1qi6x: w+v8xnd1z wxu; gc;a magnifying 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 dif 8w;bvahsk(;,eu)uaf 3 7htzameter objective in an astronomical telehhvuta 8 f;f,sz;w()7k3ebu ascope 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 vu7zupgn n hs29b: /)ya refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. Whatv/)pg nu9nsy:b72h zu 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 throug0 a c2*fu6oqscxwk3+ lhout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced s l c0of6k2swq3u+x ac*tars? (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 ox()i avhzfz gz -id: ;va4jcx4* +b8ma 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 +qkbof-k2fgtw9+ r kza2x7i .able to see the greatest detail when using i kf7g2xbk k.taq+fo2+zw-9r 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 suffertxy/1 d5 r. ifdwws+ruw1to:, from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors sufferdn-u6s 6p :dld 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 kbgnaqpuw)ff)i6yvi+6 m, f+ kq4 i*5a 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 5*uk3tk o1tgk9 rc)n.* ibiibdoubled, what happens to its resolving power assum) tn 3oc iut5 kbrkg1k*ii9b*.ing that all 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 has a faro0vxjc)dhc29/ hw pi9 point of 18 cm. What lens (in diopters) will allow this pdcj o)vx0wp9i/hh 2c9 erson to 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 objects more than 70.+5 p4n -h.suq(tzjheh2j6u adnw hd;70 cm away. What power of lens should but-6;7w4 a h z.qj hnnjdhd(hspu2+e5 e 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 gl5stjk /q*92 mgff3zcq asses whose lenses have power of -0.15 D. What is the pegfk*52j /f smtqz c39qrson'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 farsightep7 fa/49 7xfpjr 3syvn 8auh7/al zk:hdness where the uncorrected near point is 75kf pap:z3r lnfjha7 x7a8yhs7 u9/4v/ 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 reading glasrotwo f 2,v)d25rj*gk ses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm.5 vdo),g 22wtr* jkrfo 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 wears gdg487)/6tv sbmz2c) h qxmqrn lassh gs mq)z62mt7q/vx8b)4dr nces 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 ;n(5wjoq0v nsof 25 cm. What is the magnification of t( 5vswj0no;nq he 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 idy8u . tpew5jv sn.py0go4, 1focal length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that personjewn.4i p0o8 sgp5t uydv,.y1 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 magnification if t 0wbox;lid5d 6he image is viewed by old; b06ixwd5a 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 lemgdwsl 3:wm y3 wo9htnz1( *vc-; kkr.ns of focal length 5.0 cm as a magnifying glass. What is the my 3 wr od:mvhc wk*3zklns(m1wg;.t9 -aximum 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 0yl -+.slw1p dukk5dkglass. What is the magnificatl 5u1pd+kk.ywlk0s-dion 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 1c+3:uyx5h i;r g fj*bx6.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximu5fu;:xy*bh g +3ijxcrm 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 ixq2hum5c r08 v.ff* vt z9ti2of 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 .2z*t82m9f htr5iqvcui0x vf 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 f gpmr jr87b2i,ocal length of 200 cm and its eyepiece has a focal length or8ir 7 p,mg2jbf
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 o6icc v2ntt*75 -p))vm g 9ayjx*m wjvof 10. If the telescope has a converging lens of focal length 50 cm, what i)mx6*ptvwyc j)9* 2-nc ig5mv 7vtjo as 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 maqbdla1, .8j zvgnification of 10. If thlq,.vz a8j bd1e 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. If the telescope is fk+pkn,41o dc- afl1i limited to a length of 20 cm, what is the approximate focal length of the o14k-fdka 1lipc ,+ofnbjective?

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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 ey)6n /e8qisnnpepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. H6q/nni) 8pnse ow 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.a;awpk /jczwa,e2fhapallv 1. 8.d 444 mm and an eyepiece of focal length 20 mm, adjusted for m.l pla8awzkcha2fd/,wp.j1ea;va4 4inimum 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 ,vvz9 ymc:3zrhas an objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the twmzyc r9,:v3vz o 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 objective sw1dis )8qwhq9jymr9 mud 34+with a focal length of 8.0 mm. What is the focal length of 89 suwj43d qr+qhmw 91d my)isthe eyepiece to give 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 constellaabm5dn )tik6mv4 e0 d3tion Orion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest v3idk)0m b45mdetan6 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 m0 c5lm2dlb:haw2 ru5g m apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the dulal0 b 25:2h5wrmcdg iameter 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'sdilok4tm)5- bf 6+x7pb)p w (ltcwaf: eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of reso- i bfxb)ld ofk+ )(:4twa5p76ctpwlmlution 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 Hubb-nubshzg (:m i+pm b6:le Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve b:n+uhm (gi b6- mzp:sif the wavelength is 500 nm?

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