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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 i , 1r-8v9 pctpmon:kv6vvoj9 as open and the film is exposed in a camera is determovk mavv8j-: 9onv t,cpp1r96ined 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 determined by + kqyp7p.kld(ww lz1x)d 5w(zthe

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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 xp4pekyn) j;jf/u;s) lens-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camer pjn/epjx4f)k; );u ysa, 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 oof.i wk9aukp5( aa5v+ l5f sj 5j3/gtof view that corresponds approximately to that of normal visionv isf55kpa g/u(9 j w. tl5kjfoa+oa35 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 imagxcvyj4/ y)*gt es 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 of view than that of th2 cr4r oc0e d0prdkka)w c6o:;e eye and through which objects appear smaller is referred to aoap :c e kc6d);d0o r24rcw0rks 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 foll7a8 orn7fd w0/;vasc: bcxrew c n7j4+0 i:bewowing 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 refractiod k2;j f/tl1. pfxm8u*v: ftpdn 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 cansaf ckif 5kl) du6b3 67cj6bmw*z3) zc 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 whicpl-ly.at*bi awnab. c2 a:/8i h 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 toop:l4c94aaxrewt o.m 3s sy.3 pi2p8iv long from front to back, the person is likely to suf2ps a ltv..wpsra334ie 8pixm :c9o4 yfer 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 correc wy3da*(xwy/edy - 9vz,t7itxij yv4) ted 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 re36j( w)waqj5 bpt *evise to a vision defect that cw( v qpet6 )w*bjje5a3an 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 shortc)p ;7ro:iq (klcg-t.qh0 4 ov)fkaiat7u1 wk from front to back, the person is likely to suffer fr:1qqa(- gtl v74o tha )w7kkc0u)oi.i kpcr ;fom

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usuqea3,x ,l(d je.y 3ab2(fkcirally 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 short from front to back, this m5r jvw 12qmm8.dkvl1gives rise to a vision defect that can be corrected .1vjdqv 5m1w mmlk28 rby 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 magnifying glasf50hk3pnddfa+ab ki)z 3 )sf6s?

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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 oz63gxbp u) dl.bjective in an astronomical telescope ipuz.g)l xd 3b6s

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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 refr*kumc vr.xf8 6acting telescope. Suppose an opaque screen is rmc 6.ukvx8 f*placed 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 unifory hn2wp*dq:/0n2nv yvm sensitivity 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 lensynyp/qv0*w2:d2 nvhn 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 magnz(:fm8t gmpso* cnex++i*j 5b u ,;bewification $m$. 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 greatest detaid /c l,6bci9wfl when using a microsco/l ,bfcw9i cd6pe?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffp0b8v f8z w).diau kjs+cy8/wer 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 f::jkv+ie il5 drom

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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-jm7w c2cbz8tr5e-zx,dm 8j c 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 raa.+itzgezus+52tf)c ep2u kb,e: m.x ke*4padar dish is doubled, what happens to its resolving power assuming that all other factors remain unchanged? Its reso5,e if k gu*.be.zeptu4x+a k+ azte:2 p2)mcslving 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 levly.)i+x1nfjb xju z56( y1 jnns (in diopters) will allow this persv1y+yzj6xij( )xnbl .j1n 5 ufon 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.l8-z8ke 9ywxi What power of lens should be prey-xke wlz8 8i9scribed 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 glww fl-3n5jpltw5ke *yit6xb2 6ee( ,j asses whose lenses have power of -0.15 D. What is the person's fk2, wt6enepbw53*iwl- fyl5e j j(t6xar 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 farsd og1 88ud9yuyightedness where the uncorrected near u89ddyyo81 gu point 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 100 cm. She places reading glass3p 7 xgz ybyo(05rgla7es close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What 07yagxg7y 3lb rz5o(plens 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 newf.*+ l;ejrszq i6fig+spaper held 25 cm from his eyes, if he wears glasses+.sfi i6e ;jr*l z+qfg 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 ,(kxsk x nfl46near point of 25 cm. What is the magnification of the lens for that person when their eyeskklf(x s6n,x4 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 near point of m xdnm.k yg3 frew(l93*0 za6u25 cm. What is the magnification of the lens for that person when their eyes are foexdyzm*3 lw(0 .mn9 kfra6 3ugcused 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. Whagdx5i8po/g18wi f9 .bkw;z qxt is the magnification if t x5gb wzwg8 o1 ;ifq.d9/ik8pxhe image is 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 magnifyin5per x( z9j eb cul,z/w*n3n/og glass. What is th / nln5,/r*u c 3w(9ezejozpxbe maximum 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 m i rou74xh7e3e kl0m4lens of focal length 5.0 cm as a magnifying glass. Whatk 0me 3or7xme 7h4il4u is 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 lense4ebp31f z9 h yf5jf :7iipcy;ys of focal lengths 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 telescope, what is the maximum magnification you could acez;yf94 3hbi175: c pfpyfyj ihieve?

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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, 8.0 cm, ae*aqi(jm.op s )(xfz(lf7 *tond 16 cm. If you were to use any two of these lenses to build a telescope, what is the lens separation for the maximum magnl e)f ( .*f*(pomq aisoxz7(tjification 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 a-8jcq. owdzg0 nd its eyepiece has a fog cj0o-8z.d qwcal 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 astronomical telescope with a magnifica wafu.4:r4 uun.fo1fdtion of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of ther.u4fu.nw d1 af4fuo: 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 telescop)a 9b o 93lz5pf:3l v)tpb o(ep4bgyjne with a magnification of 10. If the telescope has a converging l f4oyb 5p3nbtb9)(zv peag9 o3:l)lpjens 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. If7k, zjyb 5,m w3v;fpsz the telescope is limited to a length of 20 cm, what is the approximate foc5mb 3py,sj;fwz v7kz,al 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 m+pljl*zum1*2 fbps : mo d.k:km and an eyepiece of focal length 20 mm, adjusted for mip k*1fb.slljp2 *udkm + z::monimum 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 length 1.4 mm and an eyepiece ofab.w 4z,7yt gi focal length 20 mm, adjusted for minimum eyestrain. A blood sampleg 7wbzy,ai .4t 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 a wu p7)g. bjmhl5s:pl(n objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separa )w:gps(l7 phm.ub5j lted 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 ayo qbqo9x-9 3efxy:7s nd an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnifi foqxs-yx7 9o :9qb3eycation 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 Ok b(58f u dec2p6,embjrion has an angular 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 can just resolve the two s,8k bubcp2 eje5d f(m6tars?

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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-mw1/d04nyjr)lg)xjg q6 iq iac (gw, 0.010 mm apart. If the focal length of the objective w )jqrigjqd6a/cmgw)gyxi04,(1- ln 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.u;jt hivky+wd4 ;3nb -.vgsh 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 h+;d.v.v;w hysjtbu ikg43-n 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 Hubbt ymssh 9wvd5-5cj:hs*8z xi (le Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the waveleng sy9i 5zcs :(v h8ws5jxdmht-*th is 500 nm?

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