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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 vjewyr n).ult:c.5r8kb ,g5kand the film is exposed in a camera is determ bv:k.wen,rgk 5 )y5u lrc.jt8ined 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 reachinra b ka0fs dlsm*w )+xy/o0j/.g 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 slidingsk5,ym2n6 36 kwytegfh rsj3 2 the lens forward or backward with respect to the camera housing. If, with such a camera 5,es6 sg krt6wyyn3jkm2 2h3f, 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 ofg(vd. -y ,csmi view that corresponds approximately to that of normal vision is gsim-d.(c ,vyreferred 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 g: .qapmy ;cnz(;13terisc/j4xm z 7p 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 wider filk(.y1a7jha 9ddj:- ts cerg(eld of view than that of the eye and through which objects appear smal71k d.ljth(y de9g aa-sr:( jcler 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 f- s9,fuj*wy leu p3x)arom 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 at then:,/0n7ku t,lg0p ymn7et t,g gw pju9

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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 whq/xth,p q++apich an eye can see 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 sl p(vg viuc+z9g0+(iv ee 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, th(qt +aizclb+sxh0 +c 3e person is likely to suf+ha+ql 3c( st+cbiz0 xfer 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 correm1d/vdnl cg8jdwui4r, sh8(/ 8l g dn0cted 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 to6aer o7 w/+jvfpz//v b 44wrbm back, this gives rise to a vision defect that can be correc7 z/e/b+bvofmr/ 4p wwr va64jted 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 tz)hh; l g3a1wh qo*nlk )d6n(voo short from front to back, the person is likely to suff)6*vg3z)1h (no qklhl dw;nhaer 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 correx 9avk+j e 3 (qd9*cnld8gyrl;cted 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 eg. ud6/86s0xlas qhifront to back, this gives rise to a vision defect that can be corrx80u6se. g hdl /sia6qected 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 glpe c -m/s4u*aidc77e 7h3muzj ass?

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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 objectiv0o:ciwxm a-/ve in an astronomical teles ivm/c-ow a:0xcope 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 refracting telescope. Suppose an opab3 bu*96rfewth63frs6 /zs ftque screen is placed i9r 3h6f*e3srs ubwz /tff6b t6n 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 th1;7jyzth57whz yp 0 hsroughout the visible spectrum, in which of the following cases would you be able to0z5ps yy1jht7 7 hwhz; 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 magnificati tw)g su(/vn6qon $m$. 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 gr a0yb5p7 .i0eeu:ls,x0 7rj t ufdmka+eatest detail when using r,7m. pau0sabie 0+:5edlujyt7f0xka microscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses sufh/-ru wspy( :8czd ;hu*rl+sffer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffeb aqedn+nrx5/gb( t, *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 microscopl 1nnosi 3wyxutg 5en+e7 4+0ie 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, what happens to its rokijn+n* ti ,u 0umo3er*51 tiesolving power asoiu5i,0j t1kn*+e* 3ir omun tsuming 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 - 60 uzt95 a)it4eikohz 9mnfqof 18 cm. What lens (in diopters) will allow this person to see distant objects 6hzatot-4 qeknm90u f i95)ziclearly?

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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 pd-r ;zmdqhi84 j)bl 4lower of lens should be prescribed if the glass is to be worn 1.00 cm in fronq)48d ljzm ;l4d-b irht 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 o)/zk/n sidm 2D. What is the person's far point if the glasses are very om )ndk /2zs/iclose 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 farsightedne7db l p0wj)wg akm;.4ess where the uncorrected near w d47ab p0g wj.);lemkpoint 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 farsighted person is 100 cm. lni t:.:io8 9,-xcrmpi j (rqqShe places reading glasses close to her8qo:rmjltq(r9.ip -nx,: c ii eyes, and with them she can comfortably 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 can read a newspaper held 25 cm from his eyes, if dh,1f7jyjdi edus.)s1a6 y7i1m 7mlwhe wears glass7 m7di,1 w.l1yfdej ja)m7du 6iysh1ses 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 point of x9r.8qdd)u +m;+yxfr;j e qwr25 cm. What is the magnification of the lens for that person when their eyes are focusee; w;.ry9dm8d qq+ j+rx frx)ud 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 per*js:u gv;z;.(at1zmixc r/2pk u1y wqson has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused atq asr ;m pxu y/1*zjuz;.:c(21ivgtkw 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. Whati*sh g7xc1 01im8kg wn is the magnification if the image is viewed by a relaxegiiwx *m ng11ks 8c7h0d 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 magni4zo/i+ s3v fv7gyq f23 ji/rehfying glass. What is the maximum possibleh3s7gv j2/fv/ qo 3izrfie+4 y 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 q-/;9ig g2ar1yhkgr*iidvc7 cm as a magnifying glass. What is the magnification if the person's eye is relaxed?r2-/iqrg97vig* 1a;ydc g khi

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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 fmz40b ho7) qeyocal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of zb )74q0ymheo 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, 4cycf6,9-pwn/,qb yrw1;uj n u.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 le1c uc,ruw /; n-q nj6pywf,9byns 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 y gffy j7egp1,6rjd s)t0c)m q nz**s2of 200 cm and its eyepiece has a focy7t)* cng jq6)p1fr *mzgd j, 0ys2efsal 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 astronomical telescope with a magnification of 10. If tx7z ljog65)kt he telescope has a converging lens of foxk)lgt56jo z7 cal 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 astrono z+3j hhn3xpldlyb*+3 mical telescope with a magnification of 10. If the+yj3lh*n 3xd3zh+bpl telescope has a converging 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 tel sv1y2g qz -dxe.z4i4jescope. If the telescope is limited to a length of 20 cm, what is the approximate focal 4v ex.2dqsizgj4z-1y 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 foqh -nvvyes04 vn*n2t.:9j o tncal length 1.4 mm and an eyepiece of focalnynh-v*9nq o2:t svt.4 ev0nj length 20 mm, adjusted for minimum 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 obxcy:-1 w..bsw3 s-wi3 izg cqcbd w/r.jective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain.:cqg ws. w-ryz13wdcisi.3-w/xcbb. 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 3.00pc 7/ 62 c/aimx.4ga5r hbgwmw mm and an eyepiemccw x/a2b7 mri /g.aw5hgp64ce 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 1;+, 0xqc 6i6og 1w tjyajqvymq1 tj4p:u38yeo 8-cm barrel and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total g6 yy8 0om3qo1qj14 :p6qj;yuj, tatiwcevx + 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 consth(o l.46mrebw4 fb nr pz9c0n8z 46nwaellation 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 aperture (diameter) telescope .4obf 4wmb6n 4nw9l0erph6nrcz(8zathat 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 objects which are 0.010 mm aqcl+4p n k,u5hpart. If the focal length of the objective is 4.0 cm and the wavelength of lhq c,nk4p u+l5ight 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 diamete- :0rhn2 c/ oc).eggxjb.uveqr of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the mi.vu b0 nq-)jc2ex gc/.oehgr:nimum 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 i:q)j.: 5q-zfjxmqjr ko w2zu* nto Earth orbit by th:zj 5 . qqjw*: fk-)rzqom2juxe space shuttle. What angular resolution could this telescope achieve if the wavelength is 500 nm?

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