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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 the film is exposed intsb9 - bu7 ye67-cysqm a camera is determined bybm ute9 -7 y6bq7cs-sy 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 cux 6rrcr3 *r r:yktd66amera 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 mayj; j9rq rj+c9lw 4.ge l;zq ,o5a9hhzb be varied by sliding the lens f.hrj9j 9a5z ;o,cw4ezb; ljh9g+ l qrqorward or backward with respect to 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 covers the film with a field of view th-uqf8c+p+r bu at corresponds approximately to that of normal vision is referrq f8bcr +-uu+ped 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 image63 vd7cax jrp)s 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 k0s hj34u,o q :2rbkhgrl-g:ga wider field of view than that of the eye an:h23rk gghrs-:ou lj kb qg,04d 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 /elk1epi;au)l66d wvd0-o qbis a camera 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 .3u- p,fc0ty6(pw i zirx tjr7of 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 clearn54 v.rjccsxif4fb0 a( k.hv5ly 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 ikap aa+ahui1a1m4hbfx:jn7: u ,9d+gs

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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 isozaqzge 73 9t0 too long from front to back, the person is likely to su atg0z79o3eqz ffer 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 wi,z6qhn7 ga;mj th

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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, th5 qk* 1tbv68yzqc uks qr:/r+uis gives rise to a vision defect that can be corrected by usin qqyb81ckr rz5s*/t+ qu k6v:ug

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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 frontdun1e zy+q)3 5 pl 44ittewfk- to back, the person is likely to suffer frok i4etnel1f-t+ 4pz5y3du)qw m

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usually bz( fa(j9zs xi*gs+f*u e 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 eyeballg8vvk:a8l 1fpsi ;nx/ is too short from front to back, this gives rise to a vision defect that can be corrected by8 1ilp 8fg s;vkna:vx/ 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*dp fl, q3 h3m4;m8tjl snc6uj magnifying 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 sj:-2edd +g ctlarge diameter objective in an astronomical telesco ejd+:t gc-2dspe 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 4k bjqi2ok .g5i-uvu;by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. W-b go.u;jivu5q kki42hat 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 visibnv5uwy9,uaki1 9cs5 h.vg jzq59 rdi6le spectrum, in which of the following cases would you be able to best distinguish between tyv g95,rd ivq6s1 5jui hw.c9a5nukz9wo 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 magnifico-/*t zut1xo qation $m$. 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 greatee5kwys0gcdgkd)v*)u6 w.1m zst detail when using d 6geymzc)5)gv1w0u d*w skk. 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 it7 5 p l1fhznjjj9i)f5;z6zifrom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer fr/0gug0 klh/q(/ja icyom

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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 abibwb6s0 y 0am-ulity 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 happens to its resolving powero lt9hb.cml3v/ /e.a k fi4n-y assuming that all other factors remain unchaeh af.b4/l ik-. /3yctv nolm9nged? 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 poinbz)ibw+ 0 num;n vpu.8ms 8it0t of 18 cm. What lens (in diopters) will allow this person to see distant ob0wpumi.b ;8 m0u z+n)sbv tni8jects 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 1 ue8).rvo0 0hnljzq dclearly objects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.000vde )h q1ul0o8.rzjn 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.hmhx/rsq+h ay,.: ydax-0lmj8tk1 k 715 D. What is the person's far point iytrd :ka- +/87,ljs0h1x ykqmxh hma.f 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 farsightednes4tzzuj ,3fg;xs where the uncorrected near point i; gzz3 ux,j4tfs 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. She places reading glassed c,3i ygi- dwq*;d4)cn mbgoivj ;f4)s close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is rv bym f ;d*idjq,4gcw3o4ig;c-) d)n iequired?

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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 wear3iw fqaj- 8-y1;r .pmexdxgd6s gqw-gxydrdaxj 8m 6 ;3fe-. i1plasses 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 -iz x/(m ppi8 ;mik0ic4v0vthof 10 cm. A person has a near point of 25 cm. What is the magnification of the lens forkzxv8chi;/(i4 i -pmmp 0vit 0 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 point of 25 4fbc6i ,ihxh -cm. What i6,x-ifhb h4c 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 focal length of 7.0 cm. What is the magnification n (qf tcw53 k:bb90kgwif t0q k(w3nk95ftbcbwg : he image is 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 converg(4:g(;+1va icqyodm ue xnmp+og u 1h:ing lens of focal length 5.0 cm as a magnifying glass. What is the max a um+:1ph u:;+g4 vgidxo (emcyq1o(nimum 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 convdmz ox4/vy44 te( n66lu j)mjperging lens of focal length 5.0 cm as a magnifying glass. What is the magnification if the pemjn)4 64zpv / lx(e mt6o4yujdrson'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,2(b(v-*k 3lygpau5j / 9o cedalvmra) 4.0 cm, 8.0 cm, and 16.0 cm. If youy3c- loba2a()9juve 5g /* va(pkmdlr were to use any two of these 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 cm, and 16 cm. Iif9k-e)mk:1hh gjkenjt2d7* g. ky1nf you were to use any two of these lenses to build a telescope, what is 1gn. : gk 1in)kfhk-mt9 ejejy*h27dkthe 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 it4 qs.f4r zc1va 1y+ ds/s9cwhcs eyepiece has a focal leng+cs/1 rayw9dq 4fzscs1h.c4 vth 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 telescofrx h-d7+ 6b9-d: i* ;dkw bmioldc.y.bxpx-xpe with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is cd-if.bxdlox* h xyb-6i k79 mpd.-wr :b;+xdthe 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 telescope with a magnificatiodc*ew0t)v:b0 r-a txw bre+c+qd50sm oz34d hn of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telesw e -:bratd5md oxb0v0c tcsd0 3rw4+ *q)hez+cope?

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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 -z.yg5 a,xajk e1bs1glength of 20 cm, what is the approximate focal length of tjbgke1sz15. x-gy,aahe 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 an eyepi8gjf-pr6 26ldp yxex9 ece of focal length 20 mm, adjusted for minimum eyestrain. A blood sapj2 fe dx66-8r x9pyglmple 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 ltjpd5-5 n: ekjt- -px*m /bokcens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. jn*pt:5pjtokxemd-b/ k5 - -cA blood 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 n hi*plwp)) fymc d2 h/l98r7gcjc;m0has an objective with a focal length of 3.00 mm and an eyepiece g/2*nprw8)ml7hp;fcimcd 9jcl0 h) y of focal length 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 microscope has a 18-cm barrel and an objective with a focal lengas fn8u79 l2siei)w.a th of 8.0 mm. What is the focal length of the eail78u)ef.2 9siasn wyepiece 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 z(iy+y 6 ob2io-3cfk f10-5 rad. If the wyobif k2ioc36y(+f-z avelength 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 resoahg48ylc 0 c*kurb+vkjsj) 3l d6 u7t;lve objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light usejkh4t63rlu*y0ca b7 ;u+ckslv8d)g jd is 550 nm, what is the diameter of the objective?

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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 tt:mnj2.1a y:w h 3uonmo 1.5 mm as the illumination is inc2hn jnuo.:t :m1aw3m yreased. 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 pla3pg7s 0(cxn exced into Earth orbit by the space shuttle. What angular resolut(xg cenx0 37psion could this telescope achieve if the wavelength is 500 nm?

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