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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 exos;5knnd on;4b u9q q6posed in a camera is determinn;un 6q snd;45 q9bkooed 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 fil)(k(pjbdto rm *+9 nymm 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 ley7i d / h.(yk0oez;o4jyzxq) cns-film distance may be varied by sliding the zoyh.dycek 4( x i07;z)oj/yqlens forward or backward 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 coity *x*q 8vcob;q b;6/ofhmh1x*xu b7vers the film with a field of view that corresponds approximately to that of normal vision is referre16q* oihm vb8o /bytbfxhu*x;* x7qc;d 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 qw;f1m0y:j 5uzc1-v4ho,j+vp pmu k ia telescope to magnify 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 thv 7fb 4)yh/myve film with a wider field of view than that of the eye and through which objemyv)y7/ h4b fvcts appear smaller 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 diffek0y t.mef .i4*m r.dflrent 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 occur kr 8l3,j7v bejm ,an;7mj-umas 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 objectcezt.*ss cr jibs29 /1)pgv 1ms 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 eyv+k35) mrtlg,(d xtnz x tu/3c9j(ajne 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 95/tn7 m n 4elmzo3jvjlong from front to back, the person is likely to suffer fm/n mj53 njo 749lvtzerom

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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 corp1fvq ;3oj.z jb,h+lr8o-c it rected 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 ar5xe6qr c; x:w vision defect that 6 c5: werx;rqxcan 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, jfgtt(h;;c)1 alg mz-+ v vem:the person is likely to suffer frej az ;mtgg)f:+-h1l;vc(vt mom

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usual vpx r. utb*/hdqm62q/ly 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 froo tp* 6nvkr;6xm front to back, this gives rise to a vision defect that can betr6v6k *p; nox 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 magnifying gx fr1ltbo4e2 .lass?

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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 object/q(j .gqdzhwci+x5( 52vcoizive in an astronomical tel.o5 cgd/wvcj2q(x +i5 z(zhqiescope 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 f ruz82d;j d)gkormed by a refracting telescope. Suppose an opaque screen is placed in f ) gjz2u;ddk8rront 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 seg,o1-t+, uubd eo,kb rnsitivity throughout the visible spectrum, in which of the folloo1-+br u,bdg,u, k teowing cases would you be able to best distinguish 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 telescope h+nr2pm / +fhl +qrt-sras 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 see the greatest detai:giy5*syhhio-9vx2osa- rkko wi 0z)d 1m ,c4l when using a microsx1om0h5k rvhwig-)s a9dycoois4,i:-*z 2ky cope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffergazyij2ymwm; + n58x/ from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffevb 1j:cb2bps.n7; dux r 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 microscope refers to the abilittj92-+ swx-;leedh8.goo eeg y 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 d g2.lh:*p*jic 7*t ntrg6dwvi 1 s,ohbish is doubled, what happens to its resolving power assuming that all other factors remain unchanged? Its resoi*h17 w2l.g jbc,p:*higsot6d*vnt rlving 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. Whafwwh0/fg 5yu r/m veb3(gog./t lens (in diopters) will allow 35/mfbughye0/o g v .gr/(fww 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. What power of l97z(o e1cqgexens should be px c(ze 1e9gqo7rescribed 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-)tzld g zav,5 wears glasses whose lenses have power of -0.15 D. What is the person's far v5-az,zdlt)gpoint 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 farsighte3z:6c s8-piv pnq 1la6lok;af dness where the uncorrected near point is 75 ccl668p k -3f l;vo1qasizp:an m?

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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 10wn;,k4twr vkh dl9 ps6xfq(270 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper (p7t49,6wql 2 rn d;vkkhxwsfat 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 w(i7s* gil651jcmxt nnewspaper held 25 cm from his eyes, if he wears glasses oxl1itwgc i65* s jn7(mf
+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 10pj f+1kpskd. yfh;n3nmh// *g cm. A person has a near point of 25 cm. What is the magnification of the lensm gjhhk3.fn s kd1/;pnyfp* /+ 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 length of 10 cm. A person has a near point xkd i*s3 jxlwb(5vz2d -m-(eiof 25 cm. What is the magnification of the l*3zx25-ve- xdl bm(di jk (swiens for that person 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 foc*o3*i pj/yq-; gs2hbbbp x *jral length of 7.0 cm. What is the magnification if thej-;3bp*i jyp* qxgs h rbob*/2 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 ez4slnw rjk2t+ b1 qxj djm +dc,to9;s4x+4 g*5.0 cm as a magnifying glass. What is the maximum possibj; +z4g+dqt tskl2enjjmw,44so + cx9*x1rdble 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 magnifying h;r1ceicv/- nl87u6 ary 5izeglass. What is the magnification if the pe/ chl8 zu-5ra ic;vi6r1e 7nyerson'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 xymch87ol tf5*j or::q-)ky* qx 5xxk focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lensok*txf* x 85)rxoqh-: kl qcmj:57 xyyes 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 lenses of+u, f2szbv +tg focal lengths 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, what is the lengt ,z v+bs2uf+s 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 g1 gquz:xe 3m3waxw-fk/;a4c its eyepiece has a focal lxxq31 g ;ua:/ a4fe3m gcwwk-zength 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/ye5 fiph 9m2gronomical telescope with a magnification of 10. If the telescope has a converging lens 2pi/9ghfy e5mof 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 wi+wzvad 4v/u(a th a magnification of 10. If the telescope has a converging lens of focala dw4av uz+/(v 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 limited to a length 0*9vy v/jaaxaa: ou e:of 20 cm, wxy9u:oj/ ava:eava * 0hat 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 (br0 9*4c 2yxrg8uq wo svxo0jobjective 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 apart are the lensej(y9r cuwxobs 8o v24xg0q0*rs?

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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 fio) b*9nj57a jw1 (pavowd5r d1sq3an ocal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for sdwqdw1 v *79oa 5iajnbjpa 5(1)o3nr 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 objective with :p) jiti8h8t, hf+nod a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenseihip8tj+ d8 hf):tno ,s 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 ha,t ,g xmq8ptxo;j (y9is a 18-cm barrel and an objective with a focal length of 8.0 mm. What (p i omg;9,xt tjqy8x,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 conste2b3 fmwdq,l 5voiv+(d llation 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 tha+ mw23bo(div5 d,lvqf t 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 resolve objects which are 0.010 mm apartwq sd).72jjad. If the focal length of the objective is 4.0 cm and the wavelength of light ussjw7d.) qj2 daed 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 diapweatu ziwvn(71rs bc+* 7 *7vmeter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution chan+vws*17nvze(pu t c 7 *br7waige?

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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 planoj2,3 *x hbxiced into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength is 500ox i*b3nhj, 2x nm?

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