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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://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://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 /i qnh6*h ljj.the film is exposed in a camera is determined l.q6jihn h*j/ 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 r pec0 6je)g ttv-44 ihsa8ul3keaching the film 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 may be varied by sliding tq.nkgyl *v)r* ta;is yjdre7-t76-vuhe lens forward or backward with respect to the camera housing. If, with such a camerags;y -iu) lyr7t6k dtjv*aen7 *vr-.q, 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 cn 9j m3huz4ur(*mc an1 e wcql(v+vs;*overs the film with a field of view that corresponds approximately to that of normal vision is rmu* av(s +nch 3j1lvn *; 9ezwur4q(cmeferred 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 imav h duw9wn -lt:d 4jf.dpf77.xges 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 thlgst ftrb75u8:jbbp:/ias;3e film with a wider field of view than that of the ey8t s ju7grtf /p5 bib3s::abl;e and through 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 camera different frqkc5h4 )5is- 3mxqdnrom 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 uuswbs,u* 0p 8a js 5) +qre3)csbjms(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 can see objects clearlibaya5;*)ih5i 1 ec1yf2xy bh jq9 wu7y 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 is/1rhx e3aq+1o 8jme 4rr1lud b

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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 likely to e;ir; gnkd*; c1sfj;jltdk-2 k- -qmysuffer fromsiqd; t ;mj ;n*e -2k;grl-cj-kfk1dy

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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 cvqmhs*h1atad-7:zd )e r nx5:orrected 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 bat7ed3;t(m uyjck, this gives rise to a vision deyd eu(73m jt;tfect 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 bjyz0tc20;+trpbf +wua:.kwt41a t bq/5se b to back, the person is likely to suf u;r /:tja+b5tt 2 y0wws p4ct0bbb.ea1kz+ fqfer from

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usuallys;d4 lhek.hy g3,;ib ;n/+ ngh w7tqup 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 rise to ax0 7rrb iebrj1ze,f0) vision defect that can be correctedb0)zrr xe0if bjr1,7e 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 gs:t(ezmq81ox2 hk8z *pft z8elass?

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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 l 9bz 25 ucshop*nkr7n: 1ss4akarge diameter objective in an astronomical tes*4 c9 kshrnno15 b7zaps:k u2lescope 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 l kveo; :vzrdo ktln.:p):75dby a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will this havev ol pe::nd;.t ok k)zl5rvd7:?

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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 sensitivi.dqffh fi93 l; 9h*1htcqtvss7g t /c,ty throughout the visible 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 objectig,7vt*9/dh 1 itchfslf9 qqh 3.;f ctsve 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 *,,emj/ozv pkwhn).h has 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 the greatest detarmp5- zd 1 gp3loqj)j4lw-l 0s4tef-ril when using a microscol-l3 j)0-r4f451m -ezlsj rtppdowg q pe?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer ,k)hjzv 6z2do from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer kl5i2+0z jh/ajhvvm //0urc h 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 fi w97.q8mctl 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 douu15y a 7xj5 1pvsmdc7ibled, what happens to its resolving power assuming that all other factors remain unchanged? du57apjm 17vy1sicx5 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*e cou5cs*h. q) will allow th 5. o**chusqceis 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. Wj+m;eq)). mjn9do7g 0 wthg ylhat power of lens should be prd09qjwh)m 7olg; +t.m)ejny gescribed 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 gl d hynv, b3:i o8y-dhlrb2;ll;asses whose lenses have power of -0.15 D. What is the pe;obdlrdy-8 ; 2h 3li,bn yhl:vrson's far point if 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 needed to correct for farsightedness where the uncorw9q(ls 76rvhwvx0dh.f4c ,k ;6jsg s lrected near point is 75 cm? xl6wh.rj6 (h ss0 vg wv74c9q,fslk;d

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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 fa5 ixexkp:b4o:k 6 ddk8rsighted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfd54 6e:kxpbkxo 8i: kdortably read 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 cst :/q ob,:qvsan read a newspaper held 25 cm from his eyes, if he wears glasses ov/sqo: s:q ,tbf
+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 poiqc) v bl,fi3xhn5e4-p:bls.n nt of 25 cm. What isn.4c -)l elsivx:qbf3n p b,5h 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 lengthle vcn;hakkg.3)b8h: 23py w u of 10 cm. A person has a near point of 25 cm. What is the magninc p32u.klgakhhv8w;:3 bey )fication 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 hait -f-img --:rif(nm ts a focal length of 7.0 cm. What is the magnification if the image is viewed by a relaxe-nt-f :f(-tgim- mir id 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 magnifyidp6us+e c+fv;s g.: ylng glass. What is the maximlfv.c dp ;+s+seu:yg 6um 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 converging lens of focal length 5.0 cm as a magnifying glas9m;r gvs5-+ tv xoc6d(oaki8 rs. Wir+d;v 86c5gooams vx- 9tr(khat is 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 focal lengths 2.0 cm, 4.0 cm, 8.0i)ws poe8; fcze:i,7vi ff m/- cm, and 16.0 cm. If you were to use any two of these lenspfso8w)fvz-miic, f i/;e:7 ees 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, 2hy * keq;.ywv6iul:k 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two of these lenses to build a teles6vky.2i ;ulwyke* h :qcope, 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 lengpe ( pklv)ug 6:ov;qp1th of 200 cm and its eyepiece has a focal length oq;gl)u1(vp po ek6v p:f
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 tg1tm6,ibolt apwcqyh9 * 3.4g elescope with a magnification of 10. If the telescope has a com 9tg oicwap.1 ,3 bq4lyh6gt*nverging 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 telnpw ly9f 7x/r: fy:c/q/ba3imescope with a magnification of 10. If the telescope has a ilqffp/cxbm/ ya7 3 /r: w:9nyconverging 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 utsw8-1fm pe+r60 q1z0g rinj telescope is limited to a length of 20 cm, what is the approximate focal r wg 6ft1ju r i-0e1mszn+pq08length 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 length 1.4 mm and act41mkso a3;-ls5jrq )) x wqcn eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blw;ol scxq3rqkt5) as 14mj-)cood 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 mm and an eyegt(8 yp3i f5yk ahgz4+- 54bus sft8ngpiece of focal length 20 mm, adjusted for minimum eyestrain. A b588fsp +z-yk3b it y45(s4ahgggun f tlood 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 objectiv*y9tu9ik kq)t 5xekw 1e with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the te9*yi 519tkwtu)kq xk wo 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 objective with / a9jmzubg6jgnkufn 2(.1.qda focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnification b/ a2..9jzfndqg( 1 nkgm juu6of 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 constella i(ej(tgpc bl9 2jxm5z8)thqfgp,r40tion Orion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest apertump8 il)rq( (tg4z0fe259b gt hpj,xjcre (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 microscope7,q v y bmn-l)cfr1w2a is designed to resolve objects which are 0.010 mm apart. fw)vy1b,mqr l7- n2caIf the focal length of the objective is 4.0 cm and the wavelength 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 3.5 mm to t n0ux:az88g x;d2var1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution change?vdau z820;nxa r gxt:8

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  The 2.4-m reflecting Hubble Space Telescope has bex+fo;v kgo42ay5; r7 ayy :zotcg (d-een placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the w;y:5v;2fratge- ookg7+o xyd4cza (yavelength is 500 nm?

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