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习题练习：Physics Unit25: Optical Instruments
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 作者: admin  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 oper1(fs7qb)cd )tp nhpf,* c.kd n and the film is exposed in a camera is determined by(db d.s 1f*p)n,7) pc qftrchk 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 :ylk u ))cucm/c-vqmf.n) aonnt1y:(reaching 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 le:4l-evv47 t /orukxt;sw +lk lns-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a co7s/tt 4v;wev-4l k: k+lx urlamera, 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 view that corresponds approxil aqf:go *5r9o gr;nvspox ;(4mately to that of normal vision is referred to orf5s gq pvx;94oalor *;(g:nas 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 magn6v84,ac a :o*a9ntwcsck jpr8ify 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 fiel8h+8 s mheus)ak+tb x8d of view than that of the eye and throub8exs) 8u sam+h8t+khgh 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 camera different from the hu :nl1v6weomy0 man 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 ofj-h g61rg l;erl3bdeuxq 1v *( light by the eye occurs 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)f2-cs h/dv0 f f 2onecuoeq.3 which 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 seevbzyiq) -3nm 7wf+ g*e 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 b .sk1he.ntx3id8x l) hack, the person is likely to suffer .)3sihd.k1h8txn lx efrom

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usuad fp*.u/t2z30qh-vb kv gaqv;lly 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 from front to back, this gives rise tb9/z.x0vf+e:ojv8mf xej 7gyo a vision defect that can be corrected by uj/xeym+9jv7goxv z b0 f.f8e:sing

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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 persona,u/eqhdot) ( is likely to suffe/) oeht,a( qdur 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 correct a+th7bx.gu 0gk 33oiv(yza 7sed 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 gka* (rbqpr(b9.c r /mgives rise to a vision defect that can be correctpb /9b.*kq a(c mrgrr(ed 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?p8aj:4d h91hbnn qh; b

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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 aspvn.u1y64ww x0f1p er tronomical 6 .uyfvprw0 xwn1pe 14telescope 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. Sqyap;e;9rul -up;48slpj;ho uppose an opaque screen is placed in front of the lower half of the objectilus p;apl;8 qyhrj ;u4e-o9;pve 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 vy-ym 14pzv6d4xz .v7ub 9 vkhnisible spectrum, in which of the following cases would you be able to besty mzh94n64z.vv-dkv7pbx y 1u 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 magnificatiub1a:8 x+akt4i jy5t xon $m$. 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 see5i7dwmkh*cwlm( tzbop7/ 71 u the greatest detail when using a mi 1icpb7lu ot (dw h*5k/7wmmz7croscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer f2hhgfs a4t :ezf,qd/l*j3sk *rom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffee*pbl i)ak;6nxly; r9 and-iku .) tv -00tqair 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 microscotfoe. 06)tf whsg(b;rpe 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 e-de 0a/;w:b 2xnxdzt to its resolving power assuming that all other factors r;n:z/a0edxbd -texw 2emain 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 fa.sya+hi- tlyzl6d 6pjjb +0g/ prd2 .cr point of 18 cm. What lens (in diopters) will allow this person to see dist y6sdl0i++t/ag z6.drph jpc. y2-lbjant 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 mor xzj;s1rhdj2fhnkt3 6a8l1( ye than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in front ofjrs1x1h(8; 32 nk6l ftjadyhz 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 pz*u50aa5 lkg glasses whose lenses have power of -0.15 D. What is the person's far point if the glasses are very0lp*zaug 55ka 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 where the uncorrected tpue(p ,dw1 ;pnear poe1w ;(ppp,tdu int 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 100oc . x/ypg-2lqyf.6au-h yzl) cm. She places reading glasses close to/gzfpuca y h-26.lx .l-qo yy) her 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 weakn 4 jzp3iq/p/;fx9bi rs glasses o/i /jkni 9z;p4xbf q3pf
+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 persyyl4(.cjkpa , 2iev/pon has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at in4ael(vc k 2/pp.y ,yjifinity?

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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 person has pc 54.yuxdb4vz*6br sa near point of 25 cm. What is the magnification of s.4ucrbb6dp 5 *vx yz4the lens for that 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 magnifp whx c8; ry-- *kg4qaalwy9(kication if the im yxr 9cwkghyp-k*-48 lawq;a( age is 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 converging lens of focao4vgb5o42se )hw3 bltm , 2svdl length 5.0 cm as a magnifying glass. What is the maximum poss, t)es5bv2vd4sgo lo423h mwb ible 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 l;ic q/i/ aw wla dwia *zffw6.9rm5;h/ens of focal length 5.0 cm as a magnifying glass. What is the magnification if the person's awrzlfa6/ww/ a ii f ;.d5wim;hq/c9*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 2 ml-kto,qt/2rg; q1r d.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 mtdt/q-lr2,; 1rqgoktelescope, 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.-zqt8jt3k gz , 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 le8 gzjz.3 ttk-qns 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 fo6n,cnh .ii 6w-j-mtwjgnb0y8 cal length of 200 cm and its eyepiece has a focaln tnwbw 06iyj-ij,m gc-8. hn6 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 ab-he , 87z5ju4:quw28q r,i fnq kcvrz magnification of 10. If the telescope has a converging lens of foca,4uzhirz-8qrn ukfw e b85cj q7:v2q,l 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 magnific4k o+y jcaux):v 6aiw,ation of 10. If the telescope hcy+v w :a),jao6 i4kxuas 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 telescope. If the telntmfur1 m b 2:bvmg-iw /.:9pcs 7tqb.escope is limited to a length of 20 cm, what is the ap 1m m79bus:tbt w. -qmg2fcin:pb.v/r proximate 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 1.4 mm and an ekgh zrx:b30t0yepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. 0xkgth0b3 z r: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 e o2dod:+ ;bicgyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. What isdg2 cdbi:o+;o 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 objectie7;j hk;**nl r(np: m-lzrt give with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are7nzrlel* : gt hjr pik(n;*-;m 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 with an28 c28:mhd 10pf:l yh)d bklitay6u l tsy:j. focal length of 8.0 mm. What is the focal length of the b.8th0pl:mfk ac 2yhjdsuil:ydlt8n ) 2y16:eyepiece 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 system in the constellation Orionn:liz0ci . stkp6p12c 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 just reso1c: lti.psi6c0z2kn plve 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 areh (4y5eg .pb:aq uzlu0 0.010 mm apart. If the focaz auq0l5.ubp :e y(hg4l length of the 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's eye changes from a diameter of 3.5 mm to 1.5 mm as th (/ghgfznozq bd77,vrl/g fs1 6x* s0we illumination is incn7* 7dszv qfs/l g1,/g6bxzr owg (0hfreased. By 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 placedg.p4l3hm*jg; kv w(kosc(-sl into Earth orbit by the space shuttle. What angular 4sm*p(;(swc .gl3l -ojv gkhkresolution could this telescope achieve if the wavelength is 500 nm?

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