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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 fijaolh:z*z3m6; hd,w/) hls r jlm is exposed in a camera is determined by thm*woldj6 ,z)a s hh hz/l;:j3re

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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:rg(g db fyju:3l0t v6 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 uu)gi ;n r+zr:eg01mwq,k*yd 4n3qzwlens-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camez:g4;n, ezq d* riwymr u+3gnk 1u)0qwra, 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 vi r2zwsohlkxr70z l. :8ew that corresponds approximatex.l 2:07s zror8wlzkh ly to that of normal vision 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 im ;kojha5cpghd:4iq;7 ages 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 3 xd8lnasysv2ozr9n/ v, vp*t b,.rp1with a wider field of view than that of the eye and through which objects appear smaller is referred t vy z/bv,l3 ns,orpas tv.rd8xp2 n1*9o 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 foll9)n3 q6 a(zage a3:;xpt5u ldz dzpuz9owing ways is a camera different 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 refracta(8.fqvl bs yu+p80cbion 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 at which an eye can see objects cle)tdbkfl11y jwh 7zlik4)7/tn arly 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 objects clearly i6.a :-(bd-vkrvf delc s

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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 mt4d(to7 uv -:7akkgz back, the person is likely to suffer fro- 747a ud kvtztmk(og:m

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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 correcte dso9n5l1ww -wd 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 vl) p:q -x9b jp+suor.vision defect that ca9-u)xpo+v srbjl:. qp n 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 short from front to back, the person is likely to co;pn/.ganv(qkx s;ij s5 6jmm *17ijsuffe .sx(ipk* 6sjicvjonm m5gn j/ aq7;1;r 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 corre50d:m, z2qkcq0 fcnau863 0dhgg gmkfcted 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 topo .wq wr1z pw1 pub/+3;wdbc6o short from front to back, this gives rise to a vision defect that cwb6 .r13zqp; d+pup/wow 1bcw an 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 magnifyw-8io uiyp7e( cg .z:ving 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 ass) .:7sodrrbz3w : eu14z fqpatronomical teles:r)eszz 7dfq us14 r:bwao 3p.cope 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 telescope. Suppose an opaque s:dasi4i ) e*urcreen is placed in front of the lower haied4) * aruis:lf 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 ho55;xjp;x ,bu *ipya spectrum, in which of the following cases would you be able to best distinguish between two closely spa;ia hyp;,u* 55xjpo xbced 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 magnificn hmh95 g33lgration $m$. 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 greate83 29wxbz +kwq0ec jlwst detail when using a 29xw+lzwewqkj c3 0b8microscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer f9wu p(9/ 3x2aa k80apmvkv vzurom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors sufferpmx 5.vf:cm9q 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 ap1s0ce7m7s(1wlav h8y dcqu ; 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, what happens xig 0/nva.zg90 d q.wnto its resolving power assuming that all other factors remain unchangedd ing.0.gv0 znwxqa/9? 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 far point of 18 cm. What lens (in diopt+ (n0wun6e sriers) will allow this person to see distant objects clearly?u i+e(r6ws0nn

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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 ofetib h8q;6/g3 ( t)btoc;pzvw lens should be prescribed if the glass isopg)ewzttqi 8(b ;t /bvhc ;36 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 -0.1+(auw xdn-o .,e63puzues (oz5 D. What is t-e6.d,z uuo3u zxpwa o(e+sn(he 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 farsightednez1l:n-7hip;9g.xcpzjfl( k u ss where the uncorrected near poin z(lgk.c;l -pp :j iuf9znx17ht 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 farsigxhe, ck)-/;k:zbx z duhted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read k)-cd :;bxzk x,ueh/z 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 gm 2nas+8or 7ccm from his eyes, if he wears glacna2ros gm 7+8sses 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 7bjl l20bksx7 person has a near point of 25 cm. What is the magnifickjbs 27l0lx7b 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 10 cm. A person has a))nj yhe *ey,f near point of 25 cm. What is the magnification of the lens jyye* f,) n)ehfor 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 7.0 cm. What is the magnification ifixbxb/g7 h(sf1un 36x the image is viewed by a relaxed eyug(bxf 7xhib/ x1n63s e?

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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 lengthh-a)tva2/ouu ;,w nah 5.0 cm as a magnifying glass. What is the maximum posaav/u h2;aowthu ,-)nsible 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 lenq;4a hixg2ol;rhz .6:rn du )ms of focal length 5.0 cm as a magnifying glass. What is the magni6:4n urzglqd) mx;.;aohh2i r fication 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 lengths2+f yu+7celci 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a t+cfi+ycu le 72elescope, 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 lengths 2.0 cbjmu04 )pwm g(yk1 tn4m, 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 sepauj k w0n(tmg4 pmb)41yration 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 cm0yezw1d2 5qii gxmt75 and its eyepiece has a f501dz iqem7yg25iwxt ocal 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 astronomica*8ocnfo2ac +tkcue8)n w*q 5 bl telescope with a magnification of 10. If the telescope has a converging lens of focal la)qowocct8n8**c2 uk 5nb +ef ength 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 wit/(u u y/6ahe6wx1r8pdtshwsun 8*vs*h a magnification of 10. If the telescope has a converging lens of focal lengt*h1wd 6t8ywe* v6sunsu axu8//(shr ph 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 794 gtbhubt m. *uq rlv27jluth*d5,v to a length of 20 cm, whavld*7u7umu *tt9q2 lrbvbg5t,hh .j4t 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 mm and an eyepiece7 ,7iywvn:24b pa3-nn 4 es iblfy/evo of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objectivy: 34y vb ,s p7olfave/2winin-7e4nbe. 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 mnnr6qqh)/mff/h,g/ r xj) +rtm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from tqnqgt x,mjrhf +)/r6rn/)/h f he 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 fo mf1k1n* uql+fhmw1l4cal length of 3.00 mm and an eyepiece of focal length 6.00 cm. mulkm1lhf+q4n f1* w1 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 a0 dmd9upg2o.si; ;nc0jp n5kq 18-cm barrel and an objective with a focal length of 8.0 mm. What is the focal l c0;9 s2p n d.0pigdoumnj;k5qength of the 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 constellation Orion has an angu.jdm)h zv fwx( z(g g-4w.,hxd 66gznilar separation of 10-5 rad. If the wavelength of the light from the sv() ni g4ggzmw6.hz (jxx.dd- zh6f,wystem 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 resolve objects which are 0.010 mm apart. v:qlzecwp.opz7z/ 0r 0e7vd( If the focal length o v7z0re0/:q lp(wzecdzv .p7of the objective 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 change0 glciaq24h /ldk wn2-s from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution 4l d20kchw-a2nqg /lichange?

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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 Te3 ty ;y0m;v-yvs vlc1llescope has been placed into Earth orbit by the space sh- yy310lvslyvct;;vm uttle. What angular resolution could this telescope achieve if the wavelength is 500 nm?

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