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习题练习：Physics Unit25: Optical Instruments
本习题练习试卷来源于51fly国际课程 (https://51fly.win)， 为试卷打印版，您也可以在网站平台(https://autodiscover.51fly.win/)直接 访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。 访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 120，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://autodiscover.51fly.win/test120.html  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。
 作者: physics  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 th*6unxk-)f bc ce film is exposed in a camera is determined nxf*)- ukcb6c 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 5a x8.s, vqp s(2imruhx0*hvx 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 di-g.xi mfm;c z 88xu*nwstance may be varied by sliding the lens forward or backward with respect f-nm*c ;8x mwi x.zug8to 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 coversqeb8 i.x0om4 e the film with a field of view that corresponds approximately to that of normal vision is refei.4 08qxemobe rred 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 telescobqbu6 4bn w31 0pia2jnpe 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 with a trnzb, / (uvp1 b9;bljwider field of view than that of the eye and thr( j/9 ,rlbt; bnz1buvpough 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 ca rdzvng28v. j3mera 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,*fzw5sdvck kc1ehktpf f*sf9 86 80h 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 cleafr1rv,lu:gu* rly 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 see objects clearly irzs7w)/p+t mlh /r 1hls

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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+u nq2u)be +( 540v 0m mclnuvbe5dbxa long from front to back, the person is likely to suffer e u2u+q n 4vl5)vm u+ bxmedb0ac05b(nfrom

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can us 8w,q xm*l 3msgbz(qc9 hgu2+wually 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 to2esap:e;:jqpm fv wa31 z5vx5o long from front to back, this gives rise to a vision defect that can be correctex3p2zmv:a1;a 5 e f eqpwjv5:sd 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, xu3f u3u5fng+2cy e 1uthe person is likely to suun13y3g xcfu 2fue u+5ffer 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 correctdk8/h*tu (v +q(ej(hw tt0wbwed 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 frp;0 b7/ 1 t4kng ww*rx8nwrsbrom front to back, this gives rise to a vision defect that xp470;t* g wr kwswb/rn8br1n can 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 magni2qho3(bpx7 vi70ov qrfying 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 i:kin;g ,,ap )0dyw1uhp fj9zp: dzm5qn an astronomical telescope is0 dz1d w:mjgzppyi:5a,kpq,; f )h9 nu

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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. Su74 )q0 i: /mtvwtz7 mq1ezbrccppose an opaque screen is placc7:tmi/40 zbrqct1 z)m w7veqed in front 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 sensitivity throughout the vixerx+w,)oz5 d in 8ti y(4p5kisible 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 lwo45+yid x,(ktzir)i8p 5 nex ens 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,0c18.ka l1 eovyztys 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 exp) z jiq:,ahv8pect to be able to see the greatest detail when using a microavj zp) 8ih,:qscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suff k,b8wy*nwl k+ vn*o7xer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffe0btpn*2kkuvup5 4+sp 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 ability,ax; kql4;i, o+o yqzb 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 doubledqln-, yw gtn.,, what happens to its resolving power assuming.nwy,lt ,gqn- that all other factors remain 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 dimslo)2oj)o l. opters) will allow this person to s2mo ) o).solljee 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 powerh;,f -g 8jofzuxd*u4 h of lens should be prescribed if thx,zju*d fhu -h g;8f4oe 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 glowr :1;qh awu63t3t hh7to-nrasses whose lenses have power of -0.15 D. What is the person's far point if the glasses are very close to t 3th:7- h urwoaqtwnt;3 o16rhhe 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 uncorrecte iq r80yy (nmwedz(*4jd near point is 754yr ( qwij*m8y z(de0n 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. She places reading gl u29+h) x ( :h rfsj4iwegfk*t+j4hbyzasses close to her eyes, and with them she can comfortably read a newspaper at a distance offhrs xy: 49j+gu )4hhw*ezb fjkti+(2 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 newspo 1n4bmw 143cxnw1evgb jd52noag2p(aper held 25 cm from his eyes, if he wears glaso1n4n5b3mexvbp 4a1d c(2gjn wg2wo1ses 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 length of 10 cm. A person has a near p2o+8vh xysj(8bb 3x thoint of 25 cm. What is the magnification of the lens for that person when thei ( jxshb 38by2hovt+x8r 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 y,;:f,j *oe xvnvi*x gm:c)m +,x b6vki 6xwfgcm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focu*xyenxm, gkbvf 6c:f:jx) ;+ v,wii o6*g,mvxsed 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 ;kz 21cuq/ nupa focal length of 7.0 cm. What is the magnification if the image 1/ up;kczuq 2nis 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*n.c1m( zgygk as a magnifying glass. What is the maximum p1n c kmyzgg(*.ossible 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 ma6wlo90v szl 0cgnifying glass. What is the magnification if the pco 9vws60l0z lerson'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 2xrw99tro.2x./mvcdbm sxl,yq;8 s f ,.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 maximumm;8d,l/ ,s oyvqb .9srf9xxwcmr. t x2 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 c wwlcr6dp:1 f-9, jq oc6bl2npm, 4.0 cm, 8.0 cm, and 16 cm. If you we c6wj c1on6pp-2qd9,bl lf:wrre to use 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 cm and its e 0-sxm olxqu79yepiece has a focal llq0m7 x-xous 9ength 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 magnificati xkg1o0)chn*c /cbj/won of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of the k x1c/j0 g /cowhnbc*)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 astre.ly o2z/7g* f ksjfypj:b+yf;h+.jgonomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting lengtj .j +ozy.e/ s7gbhg y2kf*ffly:pj+;h 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. Ij-eu3;o;+ zsh n y;zpgf the telescope is limited to a length of 20 cm, what is the approximate focal len ;z - ;jeugyh;p+osz3ngth 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 objectivop*cau9+k 3 , m7f4myazit 7jke lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minim7u p,+ kzy9ja73*f ko4tc maimum 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 lenq*c )k ufz- xuml5x-.+e )ekj9fbtm:ggth 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood .bktuulm+jx x)m-9 - ke:5cez gq*f)f 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 obje,,smj qk8 u:lw 5(wouxctive with a focal length of 3.00 mm and an eyepiece of focal lengw85 k s: m,uqolxujw(,th 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 microscopr8c- 2/imuj1q qrf2p ee has a 18-cm barrel and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to gi1c -jf qp8/rerui2m q2ve 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 Ozre-by zh6 l0:rp 31mk4q *awu l-qa0vrion 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) telescopraz 4rel:kz*0wlu a3-6 vqm qp1-b0yh e 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 objn ad*go4 8s q6/jvt7eagm z3*bects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wa4bn3v a7qos*gg j8d6* ezat /mvelength of light used 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 diameter of 3. *dtn/euxsx s-o76h- j5 mm to 1.5 mm as the illumination is inc -txd7nh j* u6-ox/ssereased. 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 gohgtu1n *zgg ;( zke ((sj,)uplaced into Earth orbit by the sp*z;(g,t (zuek 1jguhog() sg nace shuttle. What angular resolution could this telescope achieve if the wavelength is 500 nm?

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