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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://autoconfig.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://autoconfig.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 andx02v,h4zw5r so: jnpg the film is exposed in a camera is determined by t2s5, jxw:0pgnhvrz4 ohe

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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 is detcqisp648fq hn,zg.yaw0y : q)ermined 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 s ,z /2a .mp wdc3szuz3r/gcaq3liding the lens forward or backward with respect to the camera housing. If, with such 2/c3z3a,dcs.3z gwp/rum z qaa 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 o01mv*2lfe/ zog e xghy +w6wbl(tg0)g f view that corresponds approximately to that of normal vision is referth1vw0o2+ble*0g / gfmlzxg ey 6 )(wgred 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 h17 *ny ol47r/kkt y-mxb-z rflike 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 with a wider field of view r(z(8 )xl +sln c+krusthan that of the eye and through which objects appear smaller is refe+c x l s)((nrkz8ruls+rred 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 from the human eye? bhby1dn3fjpb 8d+2b/

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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 the )zrujw,8x1f z

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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 ey-xltw;c1 peu 6e 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 see obje9ltv1x8s dfn-tl+ yzuf(c -; kcts 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 person is likely v0/pzbtp og+y1a z5l+ to sufflzpz+5a 0+yt1 gpvb/oer from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usu(dg3uj / )4 fwep:vl;n ,qoe+xifbj+nally 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 too long mk,ohn ehet*;tn(tw2c+:kn -from front to back, this gives rise to a vision defect that ca tno+en t-tc, (h k;:ewkhn2*mn 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 to back, tv)ilki/8vk a ro*x/ yjd6 7/-lsvnz7nhe person is likely to sl7i/ /8i67r onvx vvl)jz yk-/asnk* duffer from

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can ubi zlp/,oi) -pnz )x-fsually 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 tzvgt. sg-j (d0ahj 1. uk4opgoct/+l: o back, this gives rise to a vision defectz0hj .a.vjocg- tl+s:gutpg1 4/(dk o that 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 magnifying glass?-8(pndmw3z 3p zg*t ld

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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 usipy -(ps5:krspk+ t c2o, gp+akng a very large diameter objective in an astronomical t+cy, 2kt ko pp:pp-ass5(+gkrelescope 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 refrazj/jdhd 79g; l44e1kryv0i 2dtr/mje cting telescope. Suppose an opaque screen is placed in front o kg742 hj die rd vm0j/4d;t/jelzry19f 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 visible sa zvyyk,rf1vu11z28spectrum, in whiazvyvk21 1rz1 ,su8 fych of the following cases would you be able to 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 m zdxikl rj70 a)yi-f julj.8e9ch;8r(agnification $m$. 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 expeiqaf/ *ykqk,p9s 61ct ct to be able to see the greatest detail when using a microsco* yk,ifp6a/ sqc91qtkpe?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses sufg zq)+esln+ ,ifer 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 fag8f 5hl j+1kzrom

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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 micr(2utu xzrh:xr3 oa0 8qoscope 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 reso6bm;,ojr . .j u+qolmllving power assuming that all other factors remain unchanged? Itjoq..bm,m 6u +;loj lrs 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 o9rks)9i. q5 7ehvngi*d1 cvbd rej i0.f 18 cm. What lens (in diopters) will allow this person to see distant obji gse.kehj9c.nr9*i01d) bdqr 75vviects 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 awa*g0n,.xh p fcry. What power of lens should be prescri.x r0hf*pcgn,bed 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 glasses(rvzy v81wx*, a/eczj whose lenses have power of -0.15 D. What is the person's far point if the glaywv*zxe,c 8zrj v/(a1sses 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 k,juym*1le( h *mfh3pcorrect for farsightedness where the uncorrected near point is 75 cm?epmflk*h(y1u3m j*h,

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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 glasses clzt b 1qtbp07,x u;cd ;q.o7jebose to he;7zuetb1x 7 ;,p tjobq0. bqcdr 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 he rcr kh2b spf )c3i,my.w(gjo2,1yhf/wears glasses off,mb2i ,wkcc.3 jpgr/h)hyf2r ys1o (
+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 :jn7fk 6leee, smo(9y. A person has a near point of 25 cm. What is the magnisof76k:ejl9, m en e(yfication 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 length of 10 cusx;d 3p 25eqjm. A person has a near point of 25 cm. What is the magnification of the lens for pq ;2s3x5duejthat 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 magnificati1bh9p.:w 4ro qjr 4ow1faz8x bon if the image is viewe 11b:b oq 49joxarwwr4hf.z8 pd 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 za9d),b6h vof- bjzb4d)xwes6m c v2/focal length 5.0 cm as a magnifying glass. What is the maximum posj69 e)bwx2v/obz s,md4zbdva-h c)f 6 sible 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 magnifyinedi b:1k, wo(as9db:a:af(/u 4jcfwjg glass. What is thej91dja:wa,kse:: u b(cia4/wbd f(fo 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 2vi 01ee0v,p rf.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 vr0pf0e vi,1 emaximum 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, whx7 96da*.lvc wga),w0 fbeax 70aqz 4.0 cm, 8.0 cm, and 16 cm. If you were z96a0dvfw 0 aa 7h),bgcq xew*7wax.lto 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 eyepi lo7k4lr;x*ch ece has a focal len4h*lor7xk lc;gth 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 astronomicalgo b 6tn3s7aysjq5u .4 telescope with a magnification of 10. If the telesco5 a 7sg .nybuj64ots3qpe has a converging 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 telescope with a magnificatioa dp o8u/z01.ia8qzstn of 10. If the telescope has a converging lens of focal l1 api8dzq /o.t8su0zaength 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 telescope is limited tf/(n 2mj/eea vj j3o4fq: jy(go a length of 20 cm, what is the approximate focal length of 42 3efjnm( /ja:ojyqj(gef v/ 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 objecti49l sg(fwt ofz( ;,6y(p3jwwz-muer m3g 3 laove lens of focal length 1.4 mm and an eyepiece of focal l,( gw3mo( w j9-grumty63sop(4za3lwefl f;z ength 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 objective lens of focal length 1.4 mm and an eyepiece of fog pi)ip4e,8h k n+q,*rm: figvcal length 20 mm, adjusted for minimum eyestrain. A bl epv* ,:fmqirphg)8,4kig+n iood 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 h9cxeqavnknzp 5 ,j-1+up-o9jas an objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are cjo u-p9n+j,5-91 qe kzvp naxseparated 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 objdw2i uoikn7m60 4mw7 tective with a focal length of 8.0 mm. What is the focal length of the e d 6tm0miwui47o7kn 2wyepiece 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 systemb+f um.uo74r9vw egq8 in the constellation 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 that can jugouf4wv.b8 r+ qm u79est 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 (s jmkz4i5 6wjapart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the diakz4j 6mi5wjs(meter 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 diameterf4dv rtu9,4hd of 3.5 mm to 1.5 mm as the illumination is increased. By what f9uhdr 4v,f 4tdactor 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 b+fgo+ l+ j *kq4a)pk* sk+8 1xyhrmgnueen placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength isx*8ylak++kpgn4u + 1j sfq + )ogm*hkr 500 nm?

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