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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: 游客未登录  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 x yw:bf6vjq-*a camera is determij vx6f*-y:wq bned 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 detez3on nr7o1cl6 rmined 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 va vuy*2:p pqfi2ried by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtainedp2: p*ufvq 2iy, 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 fielr87xkto7n0kx.g y, ft d of view that corresponds approximately to that of normal visiorktn k,7o7.xxgy8 t0 fn 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 li (0cc f+xj1 yooxu29 +sg0p xpj)jhmn3ke a 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 the film wi5tha+ l. a k7urm16rzlth a wider field of view than that of the eye and through which objects ahlu.5t 67a ar+ 1lkrmzppear 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 q e.,w2d)okseu7ho 9(d ,lxxu kgt0r2camera 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 the eye occurs at thg; k-7u(h6 jghmeod7 xe

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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 obj tqh-7ftb:8 qdects 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 j qn-f-s5qv 1/y.maumt35.qqgpvt0leye 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 pere,c6t*b/kxp np)6*a1phfd an son is likely to suffer from cbtpxhd1 a6/*p,kn )6np* eaf

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usually *)m0vx rhdm0gtm ; mp: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 from fth (0 qk:sm.1f xgo5ck0wk7dsront to back, this gives rise to a vision defef0c 0h.s1 mt7:k5wgxkskdq (oct 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 frontnx undz8m35m u9x y;1t to back, the person is likely to suffer 9xxm;du51 nn38t yzum from

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usual/hccuv6bh b:9i +hz1oly 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 av(o*le fe5j+front to back, this gives rise to a vision defect that cane *f evo5+(jla 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 magnifyq5adh 863jyoying 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 diameter objective in an astronomicalfcf8( czy*f g*io:p6p telescope i(ppoy *z*c6fgf :8i cfs

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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-xa/c 2slgz 6yekxol 0h.-y,p telescope. Suppose an opaque screen is placed in front of the lower ha oex /gyh-.,-zka26yxp l0lcslf 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 t bup v-dc34:kvisible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The le43d:utc b -kvpns 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 magnificrwf;f3 .t*px)8udhhu ( dv5 nnation $m$. 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 ex41pkpf8ah3 alwp 8k,xpect to be able to see the greatest detail when usin3h k81akl xpp,pw8a4 fg a microscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer fe*6s gyn.k p.srom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors sutw0t )a;7 welzffer 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 go2q-d. ytem .n8hpb5to 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/lwald+ -4lry happens to its resolving power assuming that all other factors remain unchanged? /l wrldl a+y-4 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 eh0g02,sb1pecs ss1v far point of 18 cm. What lens (in diopters) will allogee b,s2 hscv ps0011sw 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 70.0sdae.e5y yf 11 cm away. What power of lens shoud1eay 1ef.ys5ld be 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 glassdg/vjcq2/c nz x2x7kf:g0q*aes whose lenses have power of -0.15 D. What is the person's far point if the glasses are very close to the2cg 0q :gaz/qc*n7/xdv x2kjf 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 farsightedn0ed.f gt j+a ;qbmzx/ as9kg64ess where the uncorrected near point 6;4. g/x+fqtakd9sagz 0jmb eis 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 farsigh;. lal p*yp8vfted person 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 requirea8p*l p yl.f;vd?

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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 held 25 cm from his eyes, if he wearsq. a)ng m0si ,4vobwh:yot*.9hzhi-i glasses on yhzto ): h* w-.mi.i,vo4saqb9hg0if
+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 near pointkolom x19 eu t4r*5t/b of 25 cm. What is the magniftkex ubo9lt4o*5 1m r/ication 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 cm. 4 0x7fyfo q4-fvae,,3pbf ;jvs2 x mawA person has a near point of 25 cm. What is the magnification of the lens for that person when o jvafva b,fm2yw,;70qp4-xs3ff 4 extheir 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 the magnificae48op +a (tnkstion if the image is viewed by a relaxed eys(pao k et8n+4e?

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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 mav .f)ux*jox. c*j4bqa2b(* r 7dpfflmgnifying glass. What is the maximum possible magnification?bxdfa7 rx*o bmcpjvqfj 4.u *2.*fl()

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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 a s6q)pug5 ntv3m9d-y)+ef;s ct :jcfbs a magnifying glass. What is the magnification if thvt9 es35c6)ts- ;b cgqfuy +dp :fjnm)e 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 ts81gnd+co:p -/fm kpcm, and 16.0 cm. If you were to use any two of these lenses to buildp kgpms8f+d noc-1/: t 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 8vu+sa+f mq he5e5r x7focal 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 lens separation for the 5sv8h5fxe7eq+mu+ ar 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 3e u/*qosdkjmvb;v9v d;v 91e has a focal length of 200 cm and its eyepiece has a focal lenev juvveddbs*9o3v 9/m1 ;;kqgth 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 astronomtp*+ + veev,vp.;- np vuq ej-wm70af0*wo phgical telescope with a magnification of 10. If the telescop*mvn v.7o- av ,+*0ht eqjpweppu0pe -vf+ wg;e 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 telescoo rq22ptjx.mv,+o ifrv5 vi). pe with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the tp +vo,.mr22xjfqt)r v iv .5ioelescope?

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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 th6g/xhtl;llg4jet,// d t gu x;e telescope is limited to a length of 20 cm, what is the approximate focal length of 4 el;/ugx6/hjttld,ggx;t/lthe 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 fwa/dqi//4 wdon3aqm9 ox3g q +ocal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blnqgaw9o 3//d q 4wi 3oq+d/mxaood 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 fo r-nk)acvk3)dcal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood samr) kndav-)3c kple 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 a focal) ,9cngc1bdp f length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, w9 cdpfg)1bn,chat 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 h-,wv3 bleb1)qn)f spt /2tts jas a 18-cm barrel and an objective with a focal length of 8.0 mm. What is the focal length p- ts1js tt w2)bqfvn lb),/e3of 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 con8la )7gpas ;4r6x;whcj p)sih stellation Orion has an angular separation of 10-5 rad. If 46 awrlha gpss;h;8)icj7)x p 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 to resolve objects which are 0.010 mm apartxr 6q . k33rb(h3 grssxhcyty9cc*o4 ;. If the focal length of the objective is 4.0 cm and the wavelength of light useyr3 3;.rgt(qskrccc9 6 hx 4x*3osh ybd 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 chfpy1bk*f3 v( sanges from a diameter of 3.5 mm to 1.5 mm as the i1s fb(v 3yp*kfllumination is increased. By what factor 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 Spgs z8me-t 6sivai+a /tlzw:9.ace Telescope has been placed into Earth orbit by the space shuttle. What angular resolutitgwe.:vmtalas z/i9-s +68 z ion could this telescope achieve if the wavelength is 500 nm?

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