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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 exposed in a camera i bhjod*mcn)u0. *r 7kjs determined b och*kbr7)0 * .mjunjdy 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 b haz) g8fa)cf3y 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 slidingutmpgrn2p vxf1r, 5*2f*r0 cfn 8bk3w the lens forward or backward with respect to the camera housing. If, rr,*v53*2m8 ffcp0nnwup t rx12 kfb gwith 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 corres4./es pzezpr 8ponds approximately to that of normal vision is referred z4 epsp /rez.8to 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 is5jo7fm(g6b7*i s8gau km(o t p 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 ofjpf yc .n5)u+x the eye and thr+yjp fn)cu .x5ough which objects 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 c2l) r arvaf-yw;2og( 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 themoall/f:v;3*zdrg577hqy wf: : tr9w h oyxj5 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 gi e6t2vy wna.+yet-7objects 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 eye+a 1j w/uq9awh 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 isuj kk97spcz,: 6e:ppz likely to suffer frouzcz :ps7k6,: ep k9jpm

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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 cor+ dti4ma /5ks/cy hn1orected 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, teu3acna1 g).3p hfg6 ihis gives rise to a vision defect thatnafu)i.63pg1 ga3 ceh 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 toz03z 4ufuuz 8 4avch3fwtzd10o short from front to back, the person is likely to suffer fr80u14h3ut34zzawdz vucfz 0 fom

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usually bkxul,/qe5crs;6fko -e 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 tolz +l*2t v0qoxq(ey(a o short from front to back, this gives rise to a vision defect that cax(qaqz 0 tl*+ lv(oy2en 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 magnifying utjw51gaur,-uzv /s-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 veryeqgu/x 5la*liyn 1res+: vwpg, /:/ps large diameter objective in an astronomical telescov/nsa g: rpeuex ,g*/:qils ypw1l/5 +pe 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. Suppose an opaque scre30:7s l0dex nbn bk2zlen is placed in front of the lowenex7lk3 nzdl:bb s00 2r 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 uniafd w(8 +b92opgw hzp7form sensitivity throughout the visible spectrum, in which of the following cases would you be ab8b+7pd2 zfawoh9wg (ple 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 has pli 8j7*uy 9fcq/wp:ka 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 be1/v3fdnf(obn1mz8 l );ubi rh able to see the greatest detail when using a mbm1unidf 1 o; n8 )lv3/hbfr(zicroscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer fre9(j+bg tbly/om

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer 7s .cfjms279w5vha5qau3hgpfrom

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The resolving power o6qwdc: ddd)x:j2rsdw )oa81z- r1i df 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 radar dish is doubled, what happens to,7xi aec nw;*z its resolving power assuming that all other factors remain unchanged? Its resolvinwnc x;,azei* 7g 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.nscgf2xr 19 o (hj.hs+ What lens (in diopters) will allow this perso jso (1+hrcs9nf xg2.hn 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 cld/,i8(a z fh2rnwi1 vzearly objects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in frozzwh(nrvfa id i8/,12nt 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 glasmhs+*(8 ctggsses whose lenses have power of -0.15 D. What is the person's far point ( g*hcsm8+s gtif 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 n5p1.bk: d vfeseeded to correct for farsightedness where the uncorrected near point is 7d.bfe v5s:1k p5 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 farsii.la7 ivkh 55nghted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a . ha575vnliik 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 ade 1;txa e- 9p/rgqr*g newspaper held 25 cm from his eyes, if he wears gt/rqea r1 xe9gp*dg;-lasses 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 pfbmj 1ax*n: v/qa7 (dlength of 10 cm. A person has a near point of 25 cm. mf1j7apa: v qnbd(/*xWhat is the magnification of the 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 length of 10 v, b6lo/h x/ 4)nvern ubmsh;.cm. A person has a near point of 25 cm. What is the magnification of the lens for that p6b4,le nrhvn /h bmsv)u. /x;oerson 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 length of 7.0 cm. What is th(h+t0 7h6-voqejhkz , oq)a ole magnification if the image is viewed by (-+zhlheo), oa6to7 jqk 0hvqa 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 asydohg;4o7b5nh f i*2q a magnifying glass. What is the maximum possible magnhi4 b*;2d o q75yhgofnification?

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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 fpj vi wcpjy3)-+c 2n4jocal length 5.0 cm as a magnifying glass. What is the magnification if the person's eye pj i- j2+c3wyc4jpvn )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 lengtn6 zk cm;z0usbyir(i /n7 yu;6hs 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 ach7bcy;irmy;6 z z(u ik 0s/un6nieve?

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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, az7yop*0*5y/ fdy acvcnd 16 cm. If you were to usyzy 7 5*a/ 0odcpvcy*fe any two of these lenses 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 200 cmep;hd h 8k bn+ob iu 8,v9y7d0xb8zyg- and its eyepiece has a focal d0d 8bhbybenizv-y g u9p h+8,8xk;7o 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 mawxrvu)x pac 2.(p)je+gnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the fawp) uxvp(cr.+2xej) ocal 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 jz4*pp;u ) u).yjs0)qjfdf bc with a magnification of 10. If the te;s4)ju) u bjqzp*0cp)fjd f. ylescope has 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 telescope. If the he7 c8fl*ku98ie m44u1gov cb telescope is limited to a length of 20 cm, what is the approximate focal length of the objel mcvo814f79 ib huceg 4*uke8ctive?

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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 le;4nj 5g7vn sfa(ty ;axngth 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A bt;x; nsjv(g7nf4 a5yalood 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 foe f pzg-h;qgxdk3443lcal 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 ov hk3g-f qg4zl; p3dx4eerall 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 a focal length 2z.fi28i.s q 1 tp-s-eqcpthkof 3.00 mm and an eyepiece -se-q2p8tfqti1.czspk ih2 . 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 r c4gvdx p ig5q5,p,k-yo/fx.objective with a focal length of 8.0 mm. What is the fo,,dgk f vpxxrg-o45pqic 5/ y.cal 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 hcf.d: p1 w au.p12-u2kxlmxmhas an angular separation of 10-wuchm:2.f d-x1.lpuam 2p1xk5 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 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 +wq46e-9 m 7zgull9id6p8gf / zr awkuto resolve 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 diametewkargmdulp+w6 lg47 qi 8ze9f- z96/ur 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 )a)4v mxhdofs+n 76himm as the illumination is increased. By what factor does the minimum angle of resola4o nidx f)sh6v7+hm)ution 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 Tehp:q8nr f(1gn lescope has been placed into Earth orbit by the space shuttle. What angulr (nqgnp:1hf 8ar resolution could this telescope achieve if the wavelength is 500 nm?

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