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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 isz/e05 ;mnf4;k:k0szfvi5+ wrpyy kg 0e8ftmy exposed in a camera is determink mr +z0w5mp8f;n5yeefi zt/yyv;f: 004kkgs ed 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 f9lei924*zq(p i+x hp mu 7lhq7wuvxq)ilm 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 ek .kalx )v21b+t6cxihsl: (xvaried by sliding the lens forward or backward with respecaxe )x2kv1cx.i (b t:ksl+ hl6t 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 viegfi;fp* 9ctuujqq l s/(s,//zw that corresponds approximately to that of normal visionf,9;pt ju/ql/ (u sfqz*sig/c 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 imag esn*j3mw6q e6es 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 with a wider field o*:dcq jh2jn iecxf5 /7f view than that of the eye and through which objects appear smaller is referred xiq:jhec dn2fc/5 j *7to 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 ou4-yp89a/ube2-2 0 kp pz i2lefcnna 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 od42e tp6 *1v monutg*nfsx 2-qf 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 anyue1lcagx j679kue 6 7 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 eyef4esw:m 0lk.f uayorq(7j o9+ 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 person iq28lrkifv ;*4pi eb4 ds likely to suffer frofq*p4r ;8 lb4ikid 2evm

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can us g(80 zfzqfx86unaw i7ually 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 fm 75gmr-demk; rom front to back, this gives rise to a vision defect that can be corre m;kmdmrg5e 7-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 t;kp7xuh qejwg /48+x sg2px+ho back, the person is likely to suf7+; hwkuq xg8/ xspxegh+pj24fer 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 correct zhr0mf1/ )enzed 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 f8gl c,hsy wr:4m:ae7j ront to back, this gives rise to a vision defect that can be corrected4we cy,m 8:l rah:7sjg 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 magly ;5ctbk d:a+o4xkv) nifying 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 diametey *u jd5)f3cbkr objective in an astronomical telescope b*k)d5 cyfu3 jis

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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 tcn,*nkmwjernw0 -l9llmw +05 elescope. Suppose an opaque screen is plancnl w90m m+l-5 rkwl,ew*nj 0ced in front of the lower half 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 j)5ut ,eny(.tu ypbm.spectrum, in which of the following cases would you be able to best distinguish between two closely sp.t,(yjumb ) .etyn up5aced 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 mh32utey ms hg38pas)/agnification $m$. 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 tobx5*0x8 ;tao.nxw 2a2z ch im tx+euz) be able to see the greatest detail when using a mict x+wam2co5b xz.;atu8nzh i 2xxe 0*)roscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer r otg,pd+ jljg:-j51 hfrom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer fxy8 o c63qjil3mt,pq9d 1dm* jrom

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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 microscope rfc 2uo(3avo3 q1z pko8s92 kdgefers 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 h g rhx*k:ifc8vw -2ok6appens to its resolving power assuming that all other factw o *2 -8r6ihgcvxkk:fors 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 x/fe3:2 6ar qe1x/mnrr gq,zm point of 18 cm. What lens (in diopters) will alloa xer 2nq /:,/mqfzgr xerm361w this 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. wrr,9 nr9;/vx y9a09y1l roojpf gcm7 What power of lens should be prescribed if the glass is to be worn 1.00 cm in front of pxr/0wnorm99g,y9carjv1or 7 9;y f lthe 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 sb1yo6+igx9p .15 D. What is the person's far point if the glasses are very close sxyb ip+g69o1 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 t-ixzska0/t 4kcu kd/r9fuu 7 0o correct for farsightedness where the uncorrected near point is 75 cm 9/f kk-ukiau0zdc 7xsr4/t0u ?

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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. Shmx6cmizq4c(28+ qu v -prq3ore places reading glasses close to her eyes, and with them she can comfortably read a newspaper at aqqcxrm i2r4qo+uz8m36cp (-v 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 2lx1t8p4dk,iqth 7ru g2yc0j a newspaper held 25 cm from his eyes, if he wears glassqu1ytr8,7it 0 2xp lc k2jhdg4es 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 l 4/sbv7 .,flkw.+* n9meng8y qysyigcm. A person has a near point of 25 cm. What is the magnification of the lens for tha78+s kqfyw/,gei4l.mg * lby9yv. nsnt 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 havx1 tijbha,(+*- j 5 m j g/ka2u7uslxfa8bbq:s a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at their near ixubb5+ tkq 1/7vjubja-a fxg,:m *lha(82s jpoint?

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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 lengt rb1jw *xse;;j) (,w(fvkclze h of 7.0 cm. What is the magnification if the image is c xfr1;(,(*v s)w ejkzbejl;w 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 magnifyn)b*ch*q ak-2il e;erzwg ( l9ing glass. What is the maximum possible magnificc2 ( e-*qhglzk)a9i;* lnrwbeation?

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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 ai 5v wuq6b,/ tlr(l/ tbw.mqx, magnifying glass. What is the magnification if the person's eye is relaxed?b lrb qxu./w,,lwv/ 6 qti5(tm

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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 o*s4ek/ ;zi q)4 mxtze16.0 cm. If you were to use anyk* )4qt4zi eoe;mxs/z 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 len0jg+v .u+sgbeb6x/ jpr +qg0pses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two of these gx.be+ 0p/rq+bg0uj v6 jsg+plenses 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 gf u:tl 7exr,8ub+t) z200 cm and its eyepiece has a focal length o 8xg,ttfu:)7+bl uzref
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 magnificeo-q) --tsr zfation of 10. If the telescope hz et -o)--qrfsas a converging lens of focal length 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 with a magnificatio7iw k68lnzuow5-t2fh n of 10. If the telescope has a converging it -wouzfwn2k 5876hl 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 tesp09w5m j3rjfto zp0*lescope. If the telescope is limited to a length of 20 cm, what is the approximate focal length of the 3fojj9p0t pz*0s5wmr 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 aab 5nxj:c,;o n*y/oqun1l:gd nd an eyepiece of foc lju:*ga oc:5 nx,onqy1 nb/d;al length 20 mm, adjusted for minimum eyestrain. A blood sample 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 lenm6lkh6 ;/ us.u/uuxr fgth 1.4 mm and an eyepiece of focal length 20 mm, adjf/uh6u.6kmrlxus;/ u usted 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 obtb *v66 yjygy6t;c2d o4w1ns;pyq-fjjective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnifiy26wjt;vy1yp 6n4- tsg cfo;jdb6q*y cation?

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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 ah 4v.*fz pfig)i0-jyw0 nec0jn objective with a focal length of 8.0 mm. Whatpz4ywv0 fcj .-he* ij0nf0g) i is the focal length 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 angular sdxq+fvxgs0 1 +iggb( /zizl84eparation of 10-5 rad. If the wavelength of g0s(1zg +b li8i/ gf+v4x zxdqthe 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 microscope is designed to resol ie- ,b6n:*htdyoakd: b)3hlave objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the di3hlob,ay:-dbd *n ahek )t 6: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's eye changes from a diameter of 3.5 mm to 1.5 mm as the f9rsdbu*9 ai su0.w7 billumination is increased. By what factor does th d9f*7b9au isr0w.bs ue 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 Hubble2lg sen9eb;* jgv;dw+ Space Telescope has been placed into Earth orbit by the space b;sw; jged+e2n* 9 gvlshuttle. What angular resolution could this telescope achieve if the wavelength is 500 nm?

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