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习题练习：Physics Unit25: Optical Instruments
本习题练习来源于51fly国际课程 (https://51fly.win)，是在线习题练习的打印版，您也可以访问本平台网站(https://51fly.win/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 120 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://51fly.win/test120.html
 作者: physics  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 opelz cph+ te6f (*sa1p.zn and the film is exposed in a camera is de *zfactplp.+e(s1z 6h termined 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 fihok; 2 vigl)r.lm 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 lens-film distance mayela (h+ -gp4i*;3il( cnyn ewjc:*ibz be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained, this meanspec-(*zjil :ye4na lw3* h+ b;i(cnig 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 fils+ux ) w5u x-s.m.qbynlc:h0fm with a field of view that corresponds approximatel0.xbhu nmfl .)+ys5:ux-w qc sy to that of 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 images i1 rvq jd0qs67d)aai:us 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 fzz+jmrd2.3gwith a wider field of view than that of the eye and through which objecz.f2d g zr3+jmts 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 different from the human eye?72mp aa.hx.x w

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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 ocfh+1 rtc mjw(e ik4j1*0m1c4 wuqd6q bcurs 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 objects cle(puja oox:xxpy7; q0mp,* b6hg7t 6 qharly 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 7t8f/ lk); vzdib(f+l1 hkzap 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 gktod9kjpo;bki1b; c : yi*65 is likely to suffer fogc 5;do p:t; 1b6ikkyi *b9jkrom

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can zv)-2orxkw9 57v d*yhwu m0xn usually 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 front to back, this ez )ouq ;a;28jibsa b/gives rise to a vision defeaq; 8/uisez2 oajb)b ;ct 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 b9pvawlm - yb7 d.g2enuif46p3ack, the person is likely to sufp-lmig 36ywu nb7dpe v 9f24a.fer from

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usivr/(k -fu5n zually 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 front to back, this gives risegsh47a* mo y-x to a vision defect that cao4ax7hs myg*-n 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 gla9oj qu,q 90 p71htgr9rh(l kugss?

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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 usingnw8 ,gs3hac vo7+vi)b a very large diameter objective in an astronomical telescope v+n3b wg7 scho8av),iis

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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. Supposb/w*ivz cc o8sd:ab4 8e an opaque screen is placed in front of the lower hal b8s8id a :vo*czb4/cwf 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 visible specucv )(9 yei4lfj-y/,mhsqoo n m ;(l2strum, in which of the following cases would you bu 2ho-sl9 4jqlcfemyi(nm ,)v/sy( ;o e 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 has a magnification l-0;t 5 ml rmc)n-l7ve-3w / qfzhskzf$m$. 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 13cj*:zhan solof5 :xwould you expect to be able to see the greatest detail when usin1h fzoo j:sx n*c5:la3g 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 suff9rzg hd qem6q9w2t2 h*er from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffe4nzl.c / flk-ur 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 wiic / jf u5f /g0-jzoaq3;b3c9 rul2fa 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, whte2n66ij7c t sat happens to its resolving power assuming that all other factors remain unchanged n6 s2cti7ej6t? 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 fb8 24459yqx xli/8bjdfluy lallow this person to see distant objects clearly?248iq du54bl fx lx lfy/j98by

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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 oxo-jl.7q xh (z:c80.i lmupap bjects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be wolmal.- 7p ( i xx8jz:hu.qpoc0rn 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 have power of -0.15d/1 3j d.xt;psxb .jec D. What is the person's far point if the glasses cd.3d /x;b. s 1exjtpjare 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 uncorrected ns2s2.m mpiw sh7op6yx*xj(.j ear poinso2 h.jy pj x2spmx*w.im6(7st 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 farsightedjrj1es7(abo ) person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distar7b (js o)ae1jnce 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 rea(+qap cpd-hx (d a newspaper held 25 cm from his eyes, if he wears glaspc(a(qd+p-hx ses 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 9-i8 oxv2.lojxy s()bq5qqs t a focal length of 10 cm. A person has a near point of 25 cm. What is the magnificati tl2s)qibjx8 q(o5 ysxvq-9 .oon 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 lengtkfr6t c68:s(ijl +wud4mz 1 evh of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at their :6c4wsv86t f+me rk dzj(l1iunear 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 op+9 df pvx8;kfocal length of 7.0 cm. What is the magnification if the image isfx k;p po9+v8d 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 5.0 cm as a magnifying gl ho:iw f6uj.vi a+- j6;)uuujuass. What ii; uu6 ujjw.hv6 +joui) f-a:us the maximum 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 convergi3 bwhhj 2nc87lng lens of focal length 5.0 cm as a magnifying glass. What ih8bwn3hcl7 j 2s 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 fob f-mx,aa tzqlttez2 //i+7z 1cal lengths 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 maz,q/+ztx -zlf/e t m7ab a21itgnification 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 g ge ezd7:4iu4 wn:uq.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 maximum magnificueizu7egqnw4 :4d.: g ation 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,zqs:ykrp a2p : ,2nr/p(mg1oj9 v rfi and its eyepiece has a foca/p:ynira9r 1 f,s,gp km2v(r2po :qzjl 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 astr 74kb+ 9zxmy xtzz(up1onomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 5k( ym9xzub +zt47 zp1x0 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 astr fb9q ce**t+l9cxgp ,xonomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cxxl*,et p +fb*9c9qg 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 uk,,ej;nc+ex6e x+ ur length of 20 cm, what is thek x ,c 6+jexu;en,+rue 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 objective lens of f mhy5nixtk1 f)+ 6hko,ocal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm xhkhf65m1kyoi t+ n,)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 84 urw4sc 4 yk(oqm5hplens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed wrqok 5pmy4uhc( 844s1.5 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 wjd+ad prlc7- )t (7 rviqvtdan*a)1(oith a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magni aqvt(()ro1adp+ djtv-la77rd*i c)n fication?

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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 objective with a2+aq xoc5*fjmd tei6: focal length of 8.0 mm. +5 am 2ejc6d:qito*xf What 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 constellation Orion has an angular separation of 10- 4wk8tlv1:wr.q 1xosr,va k:g5 rad. If the wavelength of the light from t8wk.4wrgv :tk a1,vloxrq: s 1he 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 microscopepa 9ed55j4jc e9swb, z is designed 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 tw4s abjd 59j9z epc5,ehe 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 3.5 mm to 1u 9 ao8a..orogjsqw+7.5 mm as the illumaq.8 +oswgour.j9oa7ination 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 Space Telescope has been placed into Earth o9*nmc2 md3c icy4 n-nyrbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength is 500 nmm9 ycmy4c2-* 3inc nnd?

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