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习题练习：Physics Unit25: Optical Instruments
本习题练习来源于51fly国际课程 (https://51fly.win)，是在线习题练习的打印版，您也可以访问本平台网站(https://51fly.win/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 120 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://51fly.win/test120.html
 作者: physics  发布日期: 2023-05-01 10:00    总分: 51分  得分: _____________

答题人: 匿名未登录  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 in a camera p*dwn :etj ds5n/ 7aogii5)*jis determi *5 djino* tige57 wndp)as:/jned 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 reaching the film in a camej b3tfz2* nw)wra 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 disdb 6mf0i /q5yvtance may be varied by sliding the lens forward or backward with respect to the ca /f5 imdqb60yvmera 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 vir1)eh 5 ou6jgxew that corresponds approximately to that of normal vision is referred to as ah oj1rx6gu) e5

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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 l 1 3o 1 ejhcvbvy8c/;b2jvyap3e*ttx 5;2llmimages 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 oentd1ka m.w: xcmw q06a-h6/ja+nhbq wvo1)3f view than that of the eye and through which objects appear smaller is referr16c .nwb3mq/aqwax 0 hwe+n:m1)aod- vk6t hjed 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 v-t+d5a u0 g1ll8c ofchuman 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 occu:pb(ci4*4r kqazhr d*a pm82q rs 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 cafhy jpz;s9z8n6 /l0n yn 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 exc uo 70cdpci(;fg6z4ye can see 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 ylwzn(r + rm9(to back, the person is likely to suffer (r+wyn zrl(9m from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can us8-t zpr7a:aio p i;-eoually 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 f6x,to p,jqg y)rom front to back, this gives rise to a vision defect that can be correct x6gopq,j) y,ted 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, the person is likely toi nqn i0j)qr7n3mh;2d suf qd7h3mn i;)jrqi02nn fer 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 correcvh .ae(23vz hn px/bs1ted 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 giveszb22lci m2*/3 ms1xrfr+m ane9ja50 ippt*np rise to a vision defect that can be corrected by uzsap2+ pb*f mtjep/3 0*2ria1lmcnin2xm r5 9sing

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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 magnifyinbpuye0 zj.i)*g 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 large diameter objective in an astronomtla:za lzqc)g 2k6s0 5ical tgzl2ak ct)0lqa65sz:elescope 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 telescolx8:cg 0w9 h h,fdq8pcpe. Suppose an opaque screen is placed in front of the lower half of the objective lens. Whwq: d,hx9glcc hf80p 8at 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 sensiti kwui::w5 9unci(i6 wevity throughout the visible spectrum, in which 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 tc knuwi(uiiew5 :69 :welescope 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 haob bx pfrjv0/*,j) 6.mozhl 3vs a magnification $m$. 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 greatest detail wh s9+wxjq,9wo,ma yj8p en usinx9 ,,a9 q8joj wps+mywg 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 /fdc jqq 1no(jgd,6uoofj , 1+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 frd v w*n- vzz;kytt16wnn6a:z(om

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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 microscr1wrfe9yyw+ygdd 7ye5 ;g 9w-ope 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 i)y-lqpfy .k 3uts resolving power assuming that all other factors remain unchanged? Its resolving )kfyl. p -uy3qpower

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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 of 18 cm. What lens (in diopters) wil9 x;5tyb nhe;rl allow this persyh9b n;t5 er;xon to see distant 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 ae :):hu1ib,vzb fic3 hway. What power of lens should be pre e1)v3,fz:b hhuii :cbscribed 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 whose lenses have power of -0.15 D. Whay9j dkze8rq 6(+;orpot is the person's far point if the glaero 6k9+qyz(rd;o8jp sses 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 farsightedness wh3 rsxb2(lt6 wuere the uncorrected near poinls26urw( t x3bt 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. Suzei; enh7 mj4qb 47m/he places reading glasses close to her eyes, and hzenm4i b7m7 4ju;q/ewith 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 nuat0jy yha5 y)5)dbf9ewspaper held 25 cm from his eyes, if he wears glasses of95yu5abh jtf)d) 0ayy
+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 p p.fkg wyv)gzk. r()8k1o 9dvlength of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focuskokvv9pzgk).)pr1 fy d8w. (ged 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 lengsp 2/-ql8r- yf6u;tm n,d lhdxth of 10 cm. 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 theid ts,-lfu/pm rh n-;q2xd68ylr 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 lengthev0i1y- 2kehr( ita+b lie7o qkx(h2( of 7.0 cm. What is the magnification if the image is viewed2k0 e hve-ealyko(i+1hxb2qr( (t7 ii 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 focal length 5.0 cm as a -2mf wp4*j zmxmagnifying glass. What is the maximum pomjxmp *-fz 2w4ssible 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 magw1sq 45iihu;t 8s 7ckhnifying glass. What is the magnifi17ks qiw8c;h5u4h i tscation 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 lens4mezle- t vly4gt4vy/s6 h z72cbq3b 5es of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use h4 e3 tz 6qe zyv75 by4/sblvcm4t2-lgany 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. Ih6 fn(33jnbkpeb)vc-p6mf 9 af you were to use any two of these lenses to build a telescope, what is the lens separation f3v-pmkf3a j 96bb)ec h(6npnfor 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 hasaih:fvrq c346p2x z o63mb)za a focal length of 200 cm and its eyepiece has a focal lengihmzfxqcp v3o63r a) 4:a2b6zth 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 ap h0jm669mg jk8)z hjzn astronomical telescope with a magnification of 10. If the telescope has a converging mjg96 z0mzh)jh6 8kpjlens 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 magnification of 10. If t 8d(je vy4vvwof7n:8 khe telescope has a converging lens of focal length 50 cm, what is the resulting length of the telescope vvw ey k(4f887onjd:v?

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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. :4*/ k8 nhnb bhvyak) g iok.ce9(:zljIf the telescope is limited to a length of 20 cm, what is the approximalk o: *nbe49) 8/ijgkkb.v(hchzan:y te focal 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 focal length g*5cv3 dy k70gc8cek y1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyesg3 c5 cved07y*kkg8yctrain. 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.l sog:a(0 mry+q9q6zvv b*5gyxu 4q7k4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1q 9ysmg xbg*lk6ar4+o7v5:(qqzuy0v .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 wx)nug g(s--yx ith a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what i-y(gng sx)x u-s 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 barrelmt rxqx9nf2 4, and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to give xq29f mn4txr,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 cvxg)-dxv vd+ l;n 2ww(u ,ol* d.:jbhsonstellation Orion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is th;:*,)l +nu x2bv-hlw vdox(dvgwd. jse 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 desigwmqf ,wgxvb:6kp,+- *lz-e 6w x kgr4 w03owvtned to resolve objects which are 0.010 mm apart. If the focal length of tm6 4l- , w,zgk:*tw qkwwxvbx6go- ewp+r03vfhe objective is 4.0 cm and the wavelength of light 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'slew 3bhqeb (c1h,w2s 3-bpll2 eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. B ec3pwlwhhes( qbl1 l-2b2 ,b3y 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 placed into Earth ,i1c-k d9selz orbit by the space shuttle. What angulai k 9se,z-1cdlr resolution could this telescope achieve if the wavelength is 500 nm?

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