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习题练习：Physics Unit25: Optical Instrument
本Practice来源于WebAssign，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 324 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；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。本试卷的直接作答链接 https://webassign.org/test324.html
 作者: physics  发布日期: 2023-05-01 10:01 

答题人: 匿名未登录  开始时间: 23年05月01日 09:35  切换到: 整卷模式

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1#
 
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  The length of time the shutter is open and the film0evt+ajotv7,fzfyc :1vz8 l4 is exposed in a camera is deteve +1c0: f7z8tfl,ajvtyzv 4ormined by the (1.0 分)
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2#
 
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  The amount of light reaching the film in a camera is zpj5gw .ogl4 ,nhtu0us/,r+ m determined by the (1.0 分)
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3#
 
单选题搜藏此题  
  In a single-lens reflex camera the lemuqjtmfhf .0 ,0xr33j ns-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. I,0jt q3 f0xjmh 3.ufrmf, with such a camera, a fuzzy picture is obtained, this means that (1.0 分)
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4#
 
单选题搜藏此题  
  A camera lens that covejqsev/- m.3dm 2 z 7zska.q,rxrs the film with a field of view that corresponds approximately to that of normal vision is rek/. q3.2,smvz-7rz j sqxa mdeferred to as a (1.0 分)
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5#
 
单选题搜藏此题  
  A camera lens that acts like a telescope to magnify images is(ad,8 adyek3 d referred to as a (1.0 分)
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6#
 
单选题搜藏此题  
  A camera lens that covers the film 98gcds8c bu.qpdv1r/with a wider field of view than that of the eye and through which objects appc 8 vd91c8drb .psu/gqear smaller is referred to as a (1.0 分)
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7#
 
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  In which of the following ways is a camerar v68h6kq.rmq different from the human eye? (1.0 分)
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8#
 
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  The principal refraction of ,yydsu m +p0e3wu7tt9 light by the eye occurs at the (1.0 分)
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9#
 
单选题搜藏此题  
  The closest distance at whicms+ gtc 01 c*kd2n c3gzf2y8czh an eye can see objects clearly is (1.0 分)
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10#
 
单选题搜藏此题  
  The farthest distance at which agswf ,8gt) dgf;v;n-s n eye can see objects clearly is (1.0 分)
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11#
 
单选题搜藏此题  
  If a person's eyeball is3 l75)udki;p edy ml-s too long from front to back, the person is likely to su-;)53yddime pklu7 ls ffer from (1.0 分)
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12#
 
单选题搜藏此题  
  Nearsightedness can usuallev)rj y y/uh+7w0u )hxy be corrected with (1.0 分)
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13#
 
单选题搜藏此题  
  If the human eyeball is too long from front to back, this giveg* *ss7d7mz *dk npq+o3glh z3s rise to a vision defect that can be corrected by l3k*7gnphozms d*7g s*d3+qzusing (1.0 分)
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14#
 
单选题搜藏此题  
  If a person's eyeball is too short f6st2j;hqotxe l2 9/ ndvj4k8 b9vwdwbaa.1n0rom front to back, the person is likely to suffekx 6 4b albn89o2j /jnwv he90v; saddq.t2w1tr from (1.0 分)
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15#
 
单选题搜藏此题  
  Farsightedness can usuallyzv*lm5p(s c7c be corrected with (1.0 分)
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16#
 
单选题搜藏此题  
  If the human eyeball is too short from front to back, this gives rise to qf vj 5pm8)s:ia vision defect thap)m5is j8:qfvt can be corrected by using (1.0 分)
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17#
 
单选题搜藏此题  
  What type of lens is a magnifyinghp:y2n gz k4;v glass? (1.0 分)
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18#
 
单选题搜藏此题  
  An important reason for using a very14,ayg;wh zdy8hoy k) large diameter objective in an astronomical telescwkyhyd,h; o18azg4) y ope is (1.0 分)
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19#
 
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  Consider the image formed by a refracting telescope. eh*wizkcq27pn*c-ie8 0xa/kau4)( ( oh y a iw Suppose an opaque screen is placed in front of the lower halfwh i-8n()zy epa0(hi*qaw2 7aikc/4xue *o kc of the objective lens. What effect will this have? (1.0 分)
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20#
 
单选题搜藏此题  
  Assuming the film used has uniform sensitipenz:t9:q wnex4 2h +gvity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (T znq:+ 94xhepgwt:e2 nhe lens referred to is the objective lens of the telescope used.) (1.0 分)
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21#
 
单选题搜藏此题  
  A refracting telescope has a magnificab(m gy,ti)v:8h/p sxopi 3nb 1tion $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification? (1.0 分)
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22#
 
单选题搜藏此题  
  With what color light would you expect to be able to see7lf-9 /s cja7 zm0 ajkr.ykh/l the greatest detail when ua-zr yhs lj /7/09l7jkafkcm.sing a microscope? (1.0 分)
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23#
 
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  Spherical lenses suf3o2th/ vjq-wrfer from (1.0 分)
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24#
 
单选题搜藏此题  
  Spherical mirrors suffer from0+lt rxwlmexq;bn -/- (1.0 分)
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25#
 
单选题搜藏此题  
  The resolving power of a microscope refers to tmf(ib77gw. e3eyuq1h b-p z 2nhe ability to (1.0 分)
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26#
 
单选题搜藏此题  
  If the diameter of a radar dish is doubled, wha7h0 ze-4*l3y 1z5nn,jd5kfbdk xc cp vt happens to its resolving power assuming that all other factors remain unchanged? Its resolv7 c h5ncddf5*b kykze,z3np1 x-40lvjing power (1.0 分)
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27#
 
单选题搜藏此题  
  A near-sighted person hat)xj kane90s5 s a far point of 18 cm. What lens (in diopters) will allow this person to see dists9jnt0x e )5akant objects clearly? (1.0 分)
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28#
 
单选题搜藏此题  
  A person cannot see clearly o4b1u1a7wqbrn6 j egn- bjects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in front of the -a 1bbu w7 rgqe6njn14eye? (1.0 分)
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29#
 
单选题搜藏此题  
  A nearsighted person wears glasses who5odzr.oe lmc y 1(y;lvrk0zcc5: h)b 9se lenses have power of -0.15 D. What is the person's far point if the glasses are very closehr5c lr(.k d)becz;covo:y50y 1m9lz to the eyes? (1.0 分)
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30#
 
单选题搜藏此题  
  What power lens is needed to correct for farsightedness where the uncorrg 8lf4i4+rh rrected near p4rrilhf+ 4rg 8oint is 75 cm? (1.0 分)
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31#
 
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  The near point of a farsighj.f:u q* xs7jjted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance ofsj.uf 7*x j:jq 25 cm. What lens power is required? (1.0 分)
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32#
 
单选题搜藏此题  
  A farsighted person can read a newspaper held 25 cm from his eyes, if he d, rh3otaptek 42 ed5:wears glasses ptradk e3o5, 2e4hd :tof
+3.33 diopters. What is this person's near point? (1.0 分)
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33#
 
单选题搜藏此题  
  A magnifying lens has a fos0pq /ecrej3zz6qm.w 9l,yw29y ;m sacal length of 10 cm. A person has a near point of 25 cm. What ij,y2ly/ zwqsq96p3m .e 0w;zr ac mes9s the magnification of the lens for that person when their eyes are focused at infinity? (1.0 分)
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34#
 
单选题搜藏此题  
  A magnifying lens has a focal length of 10 cm. A person has a near point gq8q8 2vvn+hc42ufdw of 25 cm. What is the magnification of the lens for that person when their eyes are focused at their near poq2fv4ng2 qhvucw 88+dint? (1.0 分)
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35#
 
单选题搜藏此题  
  A magnifying glass has a focal length of 7.00 dtqkmk-5 nbhh.4ut+ cm. What is the magnification if the image im .td+0th4b nhuk-5qks viewed by a relaxed eye? (1.0 分)
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36#
 
单选题搜藏此题  
  A person uses a converging lens of focal length 5.0 cm as a magn wcw o6 .+wddmzp;cji. 5v5(unifying glass. What is the maximum possible5u .diwcvwnpo;5j z. w6 dmc+( magnification? (1.0 分)
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37#
 
单选题搜藏此题  
  A person uses a converging lens of focal lec7v 6nz7l ip9qngth 5.0 cm as a magnifying glass. What is the magnification if the person's eyqc7p lv nzi697e is relaxed? (1.0 分)
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38#
 
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  You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and : pk839wjkw: ; oiphxu16.0 cm. If you were to use any two of these lenses to build a telescope, what is pkj38w9x:kwu po :i;hthe maximum magnification you could achieve? (1.0 分)
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39#
 
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  You have available lenses of focal lenef71gyh96 j zf4uz o1vgths 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 maxim1h9z1f ou7g yezf6v 4jum magnification telescope? (1.0 分)
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40#
 
单选题搜藏此题  
  The objective of a telescope has a focal length of 200 cm and its eyerqx27ry q8cn px;7tncx /8y q4piece has a88r cp7nt/2qnxq 7y 4xq rycx; focal length of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity? (1.0 分)
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41#
 
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  A student constructs an astronomical telescope with a(z phnlqa8zw: 0mgc .y r(*kv uh.3mw, magnification of 10. If the telesc: ,kr8awpuy 03v ((hn* .zmwcglhqm.zope has a converging lens of focal length 50 cm, what is the focal length of the eyepiece? (1.0 分)
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42#
 
单选题搜藏此题  
  A student constructs an astronomical telescope with ai1nsd.17gy e *eyrg.f magnification of 10. If the teley7rg .e* inye gd11s.fscope has a converging lens of focal length 50 cm, what is the resulting length of the telescope? (1.0 分)
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43#
 
单选题搜藏此题  
  A person is designing a 10Xgb8s f8-r(cog+qbu +f telescope. If the telescope is limited to a length of 20 cm, what is the approximatfbsr88b g+ fcq+guo(-e focal length of the objective? (1.0 分)
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44#
 
单选题搜藏此题  
  A microscope has an objective lens of focal lengg7qc9xo0hgj( :sph i..pby(yth 1.4 mm and an eyepiece of focal length 20x7.ghpqj9(y0h i :(. ysbog cp mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far apart are the lenses? (1.0 分)
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45#
 
单选题搜藏此题  
  A microscope has an objective lens of focal length 9.1+kb fqc+ni nbpokfg*y-dsum,q 55 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mmkic.qf-dfnb,s *mqy5n9+p kub+1g5 o from the objective. What is the overall magnification? (1.0 分)
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46#
 
单选题搜藏此题  
  A compound microscope has an objective with a focal length of 3.00 mmvg i:e 8wp7e5ak3vc) /-o jeh9:kxpur and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40e gcj:k v 7irexwpa8o3-v)ph :e5ku/9.0 cm, what is the total magnification? (1.0 分)
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47#
 
单选题搜藏此题  
  A compound microscope has a 18-cm barrel and an objectivey ,83sjjcy t6l s8tna7vk* z t:wa68ji with a focal length of 8.0 mm. What sw sj6 v:67iatkcy 8j8nz8y t*, j3talis the focal length of the eyepiece to give a total magnification of 240? (1.0 分)
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48#
 
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  A binary star system in the constellation Orion has an angular s hr6 ;uvmylgej )kv7 w3e2ex)c3b- b2reparation of 10-5 rad. Ifm3e v h-eb; xrrwubck6)7 yj2)l2 3veg the wavelength of the light from the system is 500 nm, what is the smallest aperture (diameter) telescope that can just resolve the two stars? (1.0 分)
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49#
 
单选题搜藏此题  
  A compound microscope is 8kpkm gylkwfwj5ak.+)v54 7ddesigned to resolve objects which are 0.010 mm apart. If the focal length o)jvwf7y mk+pd5 5k4.lw kgk a8f the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter of the objective? (1.0 分)
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50#
 
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  The pupil of a person's eye changes from a diameter of 3.5 mm to 1.5 .j l:qi7ls.6w dwyk 6gmm as the illumination is increased. By what fa.yiglslq66 wjkw:.7 d ctor does the minimum angle of resolution change? (1.0 分)
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51#
 
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  The 2.4-m reflecting Hubble Space Telescope has been placed into Earth orbih,27j ki auyzm;4,vl vt by the spvjm z7iua;yv,l k2h,4ace shuttle. What angular resolution could this telescope achieve if the wavelength is 500 nm? (1.0 分)
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