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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 film is exposed in * 3 ,drrugx7oxd7gcf /a camera is determined*xrdo f7g/ udxcrg, 73 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( ,k*: ilta*zggqz1wt 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 the lens-film xa;tvbk74 lq (dtd1y9distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a kyxt714dtl(qbv ;9adfuzzy 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 fgy/xmer2nt8 yv3m gbt97e,z /ield of view that corresponds approximately to that of normal vision is ree329,z7t8mb/ tg exg yy n/mvrferred 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 magn, ;dyn*g /chvxify 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 theag :qckm u+tx*j z87+b film with a wider field of view than that of the eye and through which objects appear smaller is referred toj8tx 7k+mczb*q +: aug 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 is5y nti;fb1; c e6syj0h 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 refraction of light by thec cj /.zcuzp+2 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 96m z 8/sq)hx*i7ycrz v*hqe ican 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 vo 2,jeqwb;i4; xlhl6 at which an eye 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 frontcwj0yqaiqhh1.; ilxbg.2tdd, - f( l. to back, the person is likely to suffer fy;b1wac 2t0 d,xhhi (ig l.fjdl.qq-.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 correco3 :xew3nm,e m jkp, gxo0y22eted 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 freh d3yh,9k/sx+8f mr gont to back, this gives rise to a vision defect that can be correch9x r/m8h3+dek, sfyg ted 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 9ogfl(chi uk.+wh zb6) 3 dtuzb:1 k5qto back, the person is likely to sug(zb3lb5kwq1 f)ihu. +9udh:6oczk t 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 usua8ky-y b0 f:a h8jh8cwy1jsx: wlly 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 shorthb0nts 3u ,um-s-1kxi from front to back, this gives rise to a vision defect that can be corrected by usi3xkb1i shu- m0s ut-,nng

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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 glamlgx,to:p/ dcy**5 a7vsbn ,d ss?

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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 dcb t;vzsevq*j(7 *b a. r5pbo(iameter objective in an astronomical ;(q j.o *zatscvp(rv e7*bb 5btelescope 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 tels4gostn 8vxr-)r* bo h 832zptescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effe* 4s8hzo b)-or rs2p8gx3ttnvct 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 29 rf2qwb ah e+ww37iehas uniform sensitivity throughout the visible spectrum, in which of the following cases would you be able to best dis+q rhi2 w7e3wfbe 9a2wtinguish 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 telescopd +3(gewbh9 -(mnroew e has a 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 able to swmf0vydquy06-;j q, bee the greatest detail when using a microsc m0,qfv-;d6uyyjbw q0ope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer fromt( 5l e84rlksr2j. bvb

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suo( .ugb5hxx6m(d5 s0 a cx;phvffer 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 o ;e 1cu2v9lxznf t)px;f 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 3:hyjwc. 8fu2h6ylu edoubled, what happens to its resolving power assuming that e.uhc y 26f8 l:3juhywall 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 far point of 18 cm. What lens (in diopters) wilot(dno4g :qv p)9ma v0e:lx7 ol allow t( vd40gmo)o lean:x:q9 ovtp7his person 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 70.0 cm away. What power ofhg rcov*mqee(0 2a+k w84 mnf2 lens should be prescribed if the glass is to be worn 1.00 cm in fr(hqw eo 2rae*gnfm2+ 0vk8m4cont 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 -0.15t + ) s6uixyk09ngbg6k D. What is the person's far point if the glasses are ver+k)k9 i0yu b6xt ngg6sy 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 farsightedness where the uncorr+e,qt:+ cigb j thmjzf 5-nl g* d*4lu3p;0xbbected near point qi+mb+f dc3z*ghejttnl4 0x*g-b5,;: u j lbp 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 farsighted person is m/z1 liqq0)b*n7j 3pzvw v-qc100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 2v1bic3qv- mzq*)jwq/l7 pn 0z5 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 wears 9u(v oce wza41glasses 9e ouaz1w( c4vof
+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 3(c vz o(ucp5dhas a near point of 25 cm. What is the magnification of the lens for that person when their eyes are u (z3v pd5o(ccfocused 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 lengbcw2rt 8s77:uo u ggomx+ez1e-r03wl th of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes+3gu1gmbr eesu0olc2 t o-xw7r: wz8 7 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 i,*mcswrm,.7eh6ry a fs the magnification if the image is viewed by awy.m*e7rchm ,6s fr, 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 magnifyinglx6 1ctu67 6sl w9xj0k h:pb qenf/o+y glass. What is the maximum possible magnificaw9l16 +x:s y/7ojqtp6hxue nf0 lk 6cbtion?

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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 magnifyingsj,-5j1u jvhbz 7m jno+ -y0g+5cxlqb glass. What iso1j- 5bs,57vh0j gb++ lznmux- qyjcj 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, an5s:bu kr)i ,1yyn0apb: r*s)lfumvr4s /z a+r d 16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnification you could achievy/y50 rmzarvsp u:srfkb sr:n+bi 1a) lu*,4) e?

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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 cm, 4.0 cm, -x7mo5 c //pivqgr - akteo9f28.0 cm, and 16 cm. If you were to use any two2-revg7oqikox/f- p t a 9c/m5 of these 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 200dy )0:w 3fxxz1 nq9vraksn 66s cm and its eyepiece has a fa:r6)0vysw3xs xfzq6n9n 1d kocal 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 ast+adu j6s -rbec5tz 4-mronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of tt6c zdrmsb e-- j45+auhe 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 magnr7 lau 7l8 +(bt oatus1df9nkfs/:1yhification of 10. If the telescope has a converging lens ta7 rk u dt1a(8hf1slu7o9b:f/yl+nsof 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 limig*7a;tcqyhs) + 7jv jzzmp :lti2 bk:6ted to a length of 20 cm, what is the approximate focal leph alyk vc:i*j27 z:mt z7q;+)g6bjstngth 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 leuuqohr8gd8w8;fa6: f ns of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from theu8r68o:a f gh 8wfud;q 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 5di(x2f5)r9pnm3e)j kfho)k h v1b adlens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 9)d ib)o2jrh( 5afxhd3e1kknm5 )v pfmm 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 eyefr; wpz- .uw e*; i7)6smcydlwpiece of focau;pesri )d*7;lcwwzw -y6 mf.l length 6.00 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 barrel and an objectiy*q 9/bn( iwu) gxnn hl4g9;eive with a focal length of 8.0 mm. What is the focal length of the eyepiecei ugxi4*h9lgw n(9 nnq)bey;/ 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 angularcy.)o q1v6qaa 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 canvy.co 6qa qa)1 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 aric3k /pb2umxd*, * bkpart. If the focal length of,3x*cp u2 b k*dk/ibmr 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 changes hep/dmjsqm(8 .+rz j4 2es +vrfrom a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By whdmp++m8er v rse42(.s/zq hj jat 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 Hubbqoi s,3s -r 5ph qn6iu54bz*; dj:abtgle Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could thisdni sj4:5utiga5bb3 6 qh*s q-prz,o ; telescope achieve if the wavelength is 500 nm?

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