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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 th*,o/*e:p4 quf7pimtw czx xt.e shutter is open and the film is exposed in a camera is determined by tzp.,x etu q/*cpt4:m xo ifw*7he

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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 reawkb*e gc 6-hd8d op ,kt0gj01evk75 faching the film 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 distance may be varied by slidingn 1kaoq/4)th)t(pehs the lens forward or back1ne4oth))/akh t(s q pward 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 with a field of ta) yj(p i o(9pat 5*rb5)qeovview that corresponds approximately to that of noj5p vtr*ia a)b(q5te( yp9)oormal 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 images is rpzsu yb3s0urn2o7 4 xs5 e 7:gwq+hcg4eferred 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 vie5xelj* 2(m h,b vtbe;ew than that of the eye and through which objects appear smaller is referred mv5be*;et2 xejbl(,h 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 wayf7a-e2pz8z jc s 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 refraction of light by the eye ozjn c2*53 s zobv 52hjqbb0g;fccurs 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 whi,,1 necnt( m-ozw/j i*caup9gch 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 whichut3mqr 1 x0gbzdj(os3gt 2 -)m 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 front to back, the perv1.z(u tdjpx6 son is likely to suffer v pz6ud.jtx (1from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usual 3iywhe,9p9 c;w k-n; z,yrzwmmk wnj*pz(:p1ly be 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 gives rise to x-u1x:evb)a ia vision defect that can be corre)i1x:uex vab- cted 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 perqjlq: 7vj ab 0h);v*hsq,z3 meson is likely to suffer fl );hz a3:7qq0 v,*esm vbhqjjrom

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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 correctedbph ;p *a;yz9q 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 givesqw.7z80 edka-l f6 zoi rise to a vision oaz8ifl kezd 7w0-6q. defect that can 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 ma9 292x52o6n f snyvv9d/g v7wrwp impcgnifying 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 u3z 7njfgymwj4)s ic0 .sing a very large diameter objective in an astronomical telin )g.4cwmy70 jjf3 szescope 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. Sr0 m6-6mafjn f 5f8ujjuppose an opaque screen is placed in front of the lower half of the objective lens. What effect w -jf6f5fnju 0mrj6ma8ill 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 sensitivi88gaa 09tkvtzty throughout the 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 thet g v9at08za8k 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 vte) drm4)o m2has 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 ablebxru/cqcyu;a qj83 :8 to see the greatest detail when usingc jrb8uqac8;/ quyx3: 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 suff8t-tkb(f9o,cy (hapd r 0t;y4ubk(zk er from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer.ph 0clj)rtd35ogn7 79z; xw y:cidus 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 a micrjl.) s,4h 39qjvuhqgooscope 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 to7,w7, fvr wowh its resolving power assuming that all ovwh,,f 7 r7wwother 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 diopters6 n vytgv41vi7.q)lvg) will allow thiv4gly7t1i6 . )vgvqvn s 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 objectsxk-o4t 7qcl*xjnub 7( more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in front of the(nctx*-4q7j7k x ulo b 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 wjpp-;y o,gqm- 3. vl4jrmz7blhose lenses have power of -0.15 D. What is the person's far l--jpj 3,bprlmz 7 g4. qym;ovpoint 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 corree ,/w, bx 4jy2myshhl;ct for farsightedness where the uncorrected near point i;4/bhyh e 2 x,mw,jlyss 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 cmt1u 05g8xyb0t wng i9j. She places reading glasses close to her eyes 1ngg9 ty0uxw5t08ijb, 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 h /o;c oy0 jttiy.u6z2geld 25 cm from his eyes, if he wears glasses og/yiu2o tt. 6 yjzc0;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 hasi wo e6a44tudxue -pc2zy.w9 : a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at infinityeoazxi-cw 4u 6tw9y4e2d u .p:?

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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 wap46z)dh90f9tcj itfocal length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that persoa)t6h04 zwf 9d9c tpijn 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 le8lge 5t7 drzu4 s4.yhud3 (qocngth of 7.0 cm. What is the magnification if the image icu.dhtl5s z(ue q3 7gy 48rdo4s 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 magnifying glass.* ;krquo, dgfyw zm-5) What is the maximum possible magnificat5,u ymf-gz)d; kwqr*oion?

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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 jvo0r ;b /t,s db(y7qk72gedn- yuov65.0 cm as a magnifying glass. What is the magnification if the person's eye is relaxed?;d s bogujyt(,b0e/ovk 7 7r-dn6q2v y

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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, 4zvv -whu35yo/ .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 coulduwvh /-v35yzo 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 lengtf17n fdyeh4y 4 -39hp t)zlojvhs 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, wh n)3t4 lj4v7oyzfe1hy9 h -pfdat 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 eyepiec+wx*k 2y tcr4xe has a foca*2yck4xwtr x+l 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 astronomr8b 7q-s/6hmbf tik7 cical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm,k7m-tq r8/hicsb7 fb 6 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 magnp7dsc 7yw -cy1ification of 10. If the telescope has a conv1c7 pysc7-ydwerging 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 limih,f2zad*p+xp .-uuj ated to a length of 20 cm, what is the approximate focal length of thazx+,d pa 2up-.* jhufe 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 focalw r0qejsc0gb37;b bb9pgr : l7 length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from03 rqbbg:77 b9rsbwljg0pc;e 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 1.4 mm and an ec(c/wi i +w1foyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sami (wow /1f+iccple 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 objectivecqvc0jyo, d37k8 lao. with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lensesj038qa.yo7ld vc ck,o 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 o n7j-bune ch .kur.)l,bjective with a focal length of 8.0 mm. What is the focal length of the eyepiece t7.en j c),knluuh.rb-o 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 angul8ipg(7en+cdt yk/v5 ag4wss)ar separation of 10-5 rad. If the wggie4yn8 cat(vpsw)/ k5sd+7 avelength of the light from the system 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 microscop zmcwi0,utis )j 363ql h6sph,e is designed to resolve objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light useu6h ijt 0)s m,s36zp, ilqh3wcd 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 fra ;iiay8lk2/ c 7i6(v8tzzh dnz q,w-gh0 1ypmom a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution change?q8/z, ( 0py dz2hca-g7 ;6avk8iihyiwzl1ntm

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51#
 
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  The 2.4-m reflecting Hubble Space Telescope has been placed i t0;a9pwc qy*unto Earth orbit by the space shuttle. What angular resolution coul9q a;0*typc wud this telescope achieve if the wavelength is 500 nm?

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