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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 rf,() y mj dcjwpjn x-.e+5lr9camera is determined)nrcy 9 5( p.m-r,ejjlxd +jfw 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 determi9y/+qof hnwia.iu(4s ned 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 varied by slidinc6 8*gzg4ygmyh86w:sgil e+m g the lens forward or backward with respect to the camera housing. If, wi8g y+g:g6gs *ey lhm6cw i4mz8th 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 zpma*6j p(fec fz-b;mv .pl5 0view that corresponds approximately to that of normal vision is referre6- 5mzaf .z0bjp(lv ecm *;fppd 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 images is referygz34 ki2cl ,xred 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 2l.lk l6 qyfssols3pfxg5:;(wider field of view than that of the eye and through which objects oy:ls qx .(lp3s5;s2f lg6lfkappear 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 different from the human eye?4cdnpi q1n+)8s4lagjg; sr 9x

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refracti.x,. hb*pm g7wxs.h)s-y tatm on 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 cayv 29alju ,a-vn 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 which an eye can es2uq8w95tunb7 gf:f 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 is u1cas/: bh 3xzlikely to suff :z/xc1bus ha3er 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 corrected witeor/tv)2s +sn h

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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 fr4tmqgdzc7xan4,0 9o kbn6 6vmont to back, this gives rise to a vision defect that c b76nkm nx9 dga4m6vtqzo40, 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 to /vk u 6 v3deqg9mgtnpd:(/g3to short from front to back, the person is likely to spk(:/dgt3n 3g qt9 6 gduv/emvuffer 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 corrected wz r7gsto7 rjizd; m9)k9* dkp(ith

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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 gives rise to a v+ph qbi t)5tp(n wlf*+ision defect that )f i+5( pl +pbw*qthntcan 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 mag/,eynmsrbo 37.hs*h9t * op3ab:k mfcnifying 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 astronom+6)/hd pmuui ;womvv6 rk (v/iical telescopeii 6p; h6/mkvvu/wd vo)ru+m ( 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 5 1daig1 9uewtscreen is placed in front of the lower half of the objective lens. What efa5gu1t1i 9e wdfect 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 visibljunrbp g (og wjoqo7-u11 fp6)o2e 0/de 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 lens of thq(oubg2 016 forjpo)wn geuopd71-/j e 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 t6b rnky3.(buhas 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 th24 o .5ej3fsbv+lusvx3+a q ooe greatest detail when usb4o vf32l+oas q3v sjou5x+e.ing 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 suffekh au p**c/;nrr from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffers xqohtp r1:k y17*,wk 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 ability t(h mkg i:n-t7jo

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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 mqkem*s p z082x:de7gpower assuming that all other factors remaike: 2m q*pse8 gzmxd07n 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 has a far point of 18 cm. What lens (in diopters) will ar r9hbew xv) xp);p,3* xzj*2 xxnqjw4llow tp42zx w*benh j;jxw 9xr x*x,3v pr)q)his 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 io55okpvrh. +q-vxv4of lens should be prescribed if the glass is to be v 5k-q+px 5vov.ohr4i 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 glasses whose lenses haveh aumjp*;4 pek1q 5d/c power of -0.15 D. What is the person's far point if the gl1u ;pp5*qc 4ha/mejkdasses 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 fa (4-3fx/1sskiuj stwoac4*e g v+gt/ qrsightedness where the uncorrected ne1t (ussj-e3x/*csatgq44 ivkfw /g+oar 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. pc xbg2 pe3:t7She places reading glasses close to her eyes, and with them she can comfortably read3px7gp :2t ecb a 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 a newspaper held 25 c7 e 0ke6xtf*:xap u9u 3-vjxmrm from his eyes, if he wears glx: e-*96vrxauj fepu70x tk m3asses 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 len*zh jityge d;uc+-ws7h 9tje6k 98t-jgth of 10 cm. A person has a near point of 25 cm. What i9tz7ejk8 y e*ct+j s-uw6ti djhgh-;9 s 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 cm. A person has a near:7x .yolomd o0 point of 25 :d.x oo0yol 7mcm. What is the magnification of the lens 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 foj78iw9y8td dm cal length of 7.0 cm. What is the magnification if the image is viewed by a relymd 8 dwit897jaxed 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 magnifying (/mft:kiza 3g glass. What is the maximum possible magnifia3if m:/g(tzkcation?

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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 mpe wtm0,rt3lit1z z93agnifying glass. What is thmez03l w,91t zt r3tpie 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,t6wsvzs: u4n tujlo,1e 4 gjcs609m:-r)bgmw 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of themw:z6u4 u-9mbotj,ge :c6v40tn s wg sjs l1r)se lenses 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 focal lengths 2.0 cm, 4.0 cm, 8.0 c b r l6m ;fd(ul:d/q*bp(yehb8m, and 16 cm. If you were to use any two of these lenses to build a t 8me(;dfpbbq /lhy6dlr:( *ubelescope, 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 tel n9rxk,-ctjj u0o4 .vzescope has a focal length of 200 cm and its eyepiece has a focjtj4k0znr.xvo, 9 cu-al 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 maij.;kx)k bdw ,ute oy3rrb.b 84;u.ungnification of 10. If the telescope has a converging lens of focal lenk ru. yb8ux.b4u tdniok) ew,jrb; .;3gth 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 tel,kene//kbg 1q escope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm,,bk1 //qeg ken 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 telqvi8vc r;h :/wescope is limited to a length of 20 cm, what is the approqhvvic 8:r;w/ ximate 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 objective lens of focal lengthd)w*s ltp: :of 1.4 mm and an eyepiece of focal length 2)wo*t fsl:: dp0 mm, adjusted for minimum 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 m, p4cjwey6w(j m and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mcp4ew( jy 6,wjm 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 lenin2 j/xt)tnsc h6gmypv5ao i60.k k( .gth of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lea.06hsn .2 xi)ko jc vgn(tk6tip m5y/nses 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 b6xsibmm + us.w*vy 7y;arrel and an objective with a focal length of 8.0 mm. What is the fo*wy y.s;ubm+6mxvs 7 ical 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 constellatio 8qvqh/5tjhtr;+hs a4n Orion has an angular separation of 10-5 rad. r/qt h;v4jqh+hs5a8t 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 de2r.iqg w dg)c52ibz)j signed to 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 diameter of th2rcd.iz gwg5))iqbj 2 e 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 up5y8t rd3:gnexk)f0-66i orgp t,zgfrom a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what faiturf)egxt ,y npg0 6d:grk85-zop 63ctor 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 placed into Earjj+/86 j kfk pan m6wk)5hmfz-th orbit by the space shuttle. What angular resolution could this telescope achieve if the wavel 8kfz6+/ wp kmf5ajk mhnj-)6jength is 500 nm?

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