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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 o 3t,bv/wi ih3vpen and the film is exposed in a camera is determined bvi3,w vh/ ib3ty 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, :,jxaett*u q 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 lensi5j9z:ffvyyk li/d-ow g8+yd st ( ,)f-film distance may be varied by sliding the lens forward or backward with respect8ygflf- y jvk9(fw)s5i + :izy,tdd/o 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 view that correspondstlp*lq.p/ +l 9jqc u0a approximately to that o0ljpqa t.+u9/q clp l*f 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 iw-0 ptq1 ojret p 0pcr;q5q5/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 the film z gc wenawl4v *01b72swith a wider field of view than that of the eye and through which objects appear swg n 4l1ae2*c wb70vzsmaller is referred 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 ways is a camera different from the human eyr vv/3665c3zsatuw jk0u.k .ub4 aep xe?

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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 kg 8m-yxnpih)a *dj);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 8xc3);if0yboctage8objects 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 distancey,gm.9p -ww- dyxwq /a 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 front to back, the person5m tjm4o83 ,ekbv8uhx is likely to suffer fmmk xu3v8eth 4,5 job8rom

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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+imfdz 2 ;qinf:hr xhjp 70u+)d 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 ba1wetxd (q;e*x1xzqx 7ck, this gives rise to a vision defecttq7 e1x1 *dzx (wqxxe; that can 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 sh8od(/z;w,ul)d dsalvb /ij4m (gyv5id uagd d 8lh5l b(my/jo(4; v/z,vws)uffer 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 g;r uegkuwp8, fj*-v, 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 fromeezt-7 kkh-h1 front to back, this gives rise to a vision defect that can be corr1e- tke7- hhkzected 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 magnifyinggpy6kb)2l nq ofx7 5e4b3eeg. 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 us-kdpq//kvrqo */ wfe )ing a very large diameter objective in an astronomicalk- //fewpko*)/ dqvqr telescope 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 refr 0lonekhl w2 a-u z6a(0qakl.ul h53(iacting telescope. Suppose an opaque screen is placed in front of the lower half of the objective le3(q 0wl5ll6 .kz kualo(0-ahh2ae iu nns. 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 .0o; 09lz evbqkbhgg;spectrum, in which of the following cases would you be able to best distinguish between two closely spaced g b eq0ol9g0.; ;hbkzvstars? (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 mag5 gt:g3dw2cv qnification $m$. 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 seer33fzu8 x:nzkh2mes l /: n1dq the greatest detail when using a micros3nzh :u qzk xne3r 2ms:18df/lcope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer fromdvuw;wrt io lu6jn4z0 k0e 9vzs+ :b*8

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer from.ts1a8ixzoy 9 /am)w5hwre :m

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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 refers to the abicgjolfef6h:s:;6 3b zlity 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 to its resolving power ; n yezv0,igo5nx82ziassuming that all other factors , ge0nzi5z8 2vo;nxyi 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 l:d+:zmn wkh.has a far point of 18 cm. What lens (in diopters) will allow this person to sz.d+ hk:mn :lwee 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)0 6az(oju; ixoapp+j cm away. What power of lens should be (paj+pa6u)0izo j ;ox prescribed 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 glas .j tiz1:9 gf.9e(vy*gdnab t- kgvwy.ses whose lenses have power of -0.15 D. What is the person's farv:9( -9bi.1y ydgwtag jvz.k.f*ngte 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 farsightedness where the uncorrected4*7,udw-hfmqq 56ruhwzq ,ol near uh 7-wr*,luzh w dqmfqq,46o5point 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 phyl2il6r./r m 0ysd.jaa1 d mf 4yf,j9erson is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is reqf6f9h4 dj 2alsa/y.1m.rmr j0dil,y yuired?

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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 hel0s z:u u hf pxp;q,xltrm,p(25d 25 cm from his eyes, if he wears glasses ofp z2qp , lu,p:;5x(hu mxstfr0
+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 f t8(:dhx 2014w fw pptn4fxspgocal length of 10 cm. A person has a near point of 25 cm. What is the magnification of 2:84gwx4xptd (w ps tnhf01 pfthe 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 leyz23k q u3q7utho 2c vocw-3qkg3i+/v,jdw n6ngth of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eye hk kw3vt3qn c/-izo j26g2 q,duuc+37o3qv wys 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. Wc o9g+2ca (sy: incxsnn*k;4chat is the magnification if the image is viewed by a relac kx2i*g9y:(c sa ;ncc4nos n+xed 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 convergit/wd(pgn 21 kzw/n2kh ng lens of focal length 5.0 cm as a magnifying glass. What is the maximuh1 z twkd2/ gnkn/w2p(m 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 lens of focal length 5.0 cm as a magndhk;dz- wlr*- ,8ilj p;c 7rgaifying glass. What i;krz r8d-a7h-dl*cigj lp,; ws 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, and 16.0 cm. q7q nzfqq :c2* If you were to use any two of these lenses to build a telescope, what is the maximum magnificationz* q7cqfqq:n2 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 cm,4(y4 y/8w-ifegg osco 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 separation for the maximum magnification telescope?o/4(sy o8g ygi-cwe 4f

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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 zqno9)gp ppq:jh9,d.y1ne1 ia focal length of 200 cm and its eyepiece has a focal length ofgohp).qp:n9 iez q19pjy1 ,nd
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 telescog, /rao wx2tajdtb:/9pe with a magnification of 10. If the telescob:j/2rtawodg at, x9/pe has 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 magnifsabvworx eak: a;4lf) *5m- ;xication of 10. If the telescope h;x w oae4 5*r;sbmlafkva -:)xas a converging 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 tele1 7egs1ghu 7xsscope. If the telescope is limited to a length of 20 cm, se1g 17gxsuh7what 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 zo-33ys, c jp uzv s;4(c e8wmrvyhl.+objective lens 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 the objective. How far aphuw 4z- 8rl3,m3s vcop. ;+yzescj(v yart 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 objectije ) d4l 4 09xvcpshq3em:*xyuve lens 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 the objective. What is the overall mdx3jlqhy: s p9e0x44e*mu)c vagnification?

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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 objz1av8xz5g (m jective with a focal length of 3.00 mm and an eyepiez85zjvgm(1 ax ce of focal 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 objectiv38p+r+zbauubpdl )ysm2 4 9prde+ 8zre with a focal length of 8.0 mm. What is the focal length ofyd lbmurp+82 +rdsp4b a3)p+e uz9r8z 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 w 8 g3ebj1:;bbhji wj4in the constellation Orion 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 tw3wbbgj bhi8 14:e;jjw o 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 x)gidv;;7m ry apart. If the foc);di7; mrxgvyal length of 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 from a diameter of f7rrs2ap k r:ky2q+ 6ieo32za3.5 mm to 1.5 mm as the illumination is increased. By what 6z7rra2+yp3qria f2 s:2kkoefactor 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 Hubble Space Telescope has been place2db f .blmcd)/uxy6 y9d into Earth orbit by the space shuttle. What angular resolution could this t ymbdl)db2c6u9 x/ .fyelescope achieve if the wavelength is 500 nm?

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