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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 fuxacget (26/dilm is exposed in a camera is determined uc( x/ 2ag6tdeby 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 cameri0-k wxfto ;u;a 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 thl-ecfzhb;ru(o t+ )8ye lens-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtu -)fobtc+h;yre (lz8ained, 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 withb cc-fvamc6 / 6 og12yom14cqa a field of view that corresponds approximately to that of normal maofyqcv2b64c6og 1ca- c 1/ mvision 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 act ezul b-yx031r y(zau3s like a telescope 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 with06)gsv)( r 9uy*lovgkk g pxa- a wider field of view than that of the ey(g6p*)koug)09l vx aksyr-g ve 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 cameracf 1/4ky; pk1lz ir9z p 4ej9urcrn77b 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 k3 a3 c1jf2ddvat 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 se9t-bk a)r akg)b3 y8coe 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 see zp61yy gwg m4x.u/ /v/ncy 2hfobjects 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 pw 6dvsv6ax-dllu6ok2 . l ,h0s+q;a hkerson is likely to suffer from- qkkos .x6ll6 0,as+6ul;w d h2vvdha

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usualq85* x)zz *mt4yms4gwc i+izlly 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 tooaqpw oi -/4ny1 long from front to back, this gives rise to a vision defect t p/ yq1aoiwn4-hat 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 eyebal tsst 4t+mco*w+1s1i vl is too short from front to back, the person is likely to suffer1m+*tiw+stos14t s vc 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 correwmth8cgfa369a - vs djt il)qp:9 .w,mcted 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 a visfrsj 5d/,h;+m hv2t xzion defect that can be correctx + dzjm/ v,5sf;hrh2ted 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 glashs3zn. 5hn*vj2b2et8 fr ,loc s?

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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 astronomiyc1 y1fp v,;bycal tel1 v ycy;yf,1bpescope 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 refrl w6*-ju uz3xx)g,bapl8 j d4zacting telescope. Suppose an opaque screen is placed in front of the lower 34 guz,ldpx ula 8wxj*b6- zj)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 uch bp y48l3e66ur5pkvisible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (Th85u4up prb ykc636el he 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 magnificatio:ptwgd/z4t u / s3tjg4n $m$. 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 thekc.+m-x7kd *89)x cxqpkjdnj)(,p fe ecfj s5 greatest detail when using a microscope?x.- ) k( jefk)me5dcxq8jjnpfc9p s+*7x, cdk

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suff8-san)9 x irxcof6 e/cer 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 frc3 qkl5( 9gnqnom

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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 micfuhd d uz:4oe4v r7942zhk/i*uy d4toroscope 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, wd52brej:nn) fz xyq- 2hat happens to its resolving power assuming that all other factors remain unchanged? Its resolving fynz)b2ernq5xd-2j: 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 +1 .nr7*svxk inp;odfpoint of 18 cm. What lens (in diopters) will allow this person to see distx 7iv;n*f sr.nd pk1+oant 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 of l l)*l+ iatk+ vzou4g2tens should be prescribed if the glass is to be wutag2++ t4il) voz*k lorn 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 -0.15 D. 9tx3 gkl5ag,*2fm bcq What is the person's far point if the glasses are very cxg9ktgcbl 3 q*5f ,am2lose 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 coro4wfg (c u99crrect for farsightedness where the uncorrected near point is 75 cmr w99g(u ccfo4?

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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 ff )scn8 rrcxi74.uc 6kc )fg8cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is 6uc)8)g 8sfnc .kx7r c ircff4required?

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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 re8pl3eiliu- 6wh k b2b)ad a newspaper held 25 cm from his eyes, if he wears gb-l32 i6 lui8pe)wkhblasses 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. 4zyjyq0. rhk)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 infyrk)4hj. zq0 yinity?

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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 pe9ju d) b0rkw+5xag:r rrson has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at their near 9ad jr+ r)5wxgu:k 0rbpoint?

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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 cypioh9 2yr5wi 8r2 zp8m. What is the magnification if the image 2 wyp8958ryrii2pzo his 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 convergo.j(z6 w1 ynvling lens of focal length 5.0 cm as a magnifying glass. Whatwl(6 yjo nv1.z is 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 convergingx )/h 6kr w6mtn8c6y jsbd.qwk.:/ dvt lens of focal length 5.0 cm as a magnifying glass. What is6: qj v6dsbkc. tw)/knw . yh/8xrmdt6 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 len, ydf sjq95s8wses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. Ifjws9, 85sqdfy you 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 le6m zw jckkox )b0bj)3 lnn5d: iv/:0zznses of focal lengths 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 magnification tel:3)bzd cm/5 njz0v kliz) xjbo0:6n kwescope?

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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 eyepiwf do/3/k 5yqlece has a focal length oq ydow l5f3/k/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:b4h1ll+5pbw1 s5pma.c o pcv an astronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of the eyepiece?4m1p :5 l +bws1vpc5o l.abphc

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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 b3.vkbzq1y5 8c 9c lwxastronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telescope?3clkq81.5 vxb9wzbc y

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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 1ju(i 2wl:92w 6hq: z7yitwdu w0X telescope. If the telescope is limited to a length of 20 cm, what is the approximate focal lengthy: 7liwh iw2q w(:z6t9u2juwd 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 an eyejcm*ic wm+:: vpiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objci+vwc:* j:m mective. 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 (q+g1ph9r.bjjb . wif and an eyepiece of focal length 20 mm, adjusted for minimum eyestr+9 b(ifqwj .hjb.gp1rain. A 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 has an objective with a focal length of 3cbb7 i ,3zq*t/5h wkyu.00 mm and an eyepik/ut w 35q*7h yi,zcbbece 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 wic* wtkqi p9e :ocxr)*6th a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnifickx6i *te:*pocr q c9)wation 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 angubhhp8bi , 3tqr)03c0mxjr;et lar separation of 10-5 rad. If the wavelength of the light fre xrmrbbhctijt3;30)qph 0, 8om 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 inr .i2qkew 9ci(:.mmns 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 isrqk:m.9( ii2nw .cm ne 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 1.5 mm as t1tw/y 4vbr36u*rz lo uhe illumination is increased. By what factor does the miu w6zv14* yort 3bl/urnimum 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 Hu3/hyj uu- kyelgo1 bpp6tm (;2bble Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this tel e(uyp63mh/jtgko1l buy2 p -;escope achieve if the wavelength is 500 nm?

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