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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: 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 and the film is ff2eegg 8 y9(xexposed in a camera is dete(8ef9ef yg2gxrmined 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 camerab l3ke 8bqk f;a.933jc6bvzqa 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 v;xo0yjgx4m 7maried by sliding the lens forward or b4goxy m;x70jm ackward with respect to the camera 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 view that c q2: urd0i:s,shh 1nc byipp23orresponds approximately to that of normal vision is referr :d3rh:q2,y 2is10snbciu pph ed 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 is refesjvs924fo *tyf33zsf rred 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 - 7ydyxv qmw(:wd,9 wethan that of the eye and through which objects appear smaller is referred m:,yvy-(ww7x eq9dwdto 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 way:*wmg d;e*lkyh- rd2+l*z pwxs is a camera different from 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 refractiuv8w0ipqsyu. etzny9a1o: l (p:*q2js 8g; nqon of 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 which an eye can see objects* zwt0e0z ny7njr2 cp,4 m:xvk 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 objectsw9 cu:zqsi315kz1 oecmv.3os 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,mj xa*:wi; xe/ the person is likely to suff* :xema;/jix wer 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 correctowah s-vz8d(06 f ozk0bqpvgnd;qo r,5/d1 n8ed 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, tojq +0xog *- t*m4y rxk5+cmyghis gives rise to a vision defeco++kqg mcyr0tm5*g *-o yjxx4t that can 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 n z9lb /h,7 fnd/soqf5he.lp7short from front to back, the person is likely to suffer fro7 s/ dq fln9,5p lfeb.nz7ho/hm

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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 correctedsjzmf:.rr 6s;ow)pokn*.). wws dpd 5 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 gives risgcl u y-5k,kc+e to a visio lg-y5k+cc k,un defect 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 glahi jv51of r5 8**dvei-oa/t:tsnto j 6ss?

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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 astro3 :(ddzqt3fnwc a(dx7nomical tetd: f37nw q(azc3dx(d lescope 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 telescpv(a/7s zpxt 8ope. Suppose an opaque screen is placed in front of the lower half of the objec8/pxvas (z 7tptive 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 s.hy i7r ajmbe -1yy+7sensitivity throughout the visible spectrum, in which of the following yasyhm.b7 ey-r +71 jicases 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 telescobgw)jg* 0x x-yd8 0 (1:6ph7nevag2 dpqcuupape has 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 grlmti0gx n,1* i mu/r.xeatest detail when using a mlxni 0/ gm, tmxu.i1r*icroscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer 4m)xiiek ),5v .z mwujfrom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suhjic:q 3x-w )effer 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 microscope refers to the ability kzhi6ut*;64f ktxi j7cwx8d6to

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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 hap.j(gc-ux-f f npens to its resolving power ag-(uf j ncx-.fssuming 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 poi-+q -e-5)+l /ucixh tothl usvnt of 18 cm. What lens (in diopters) will allow this person to see distant oht+ lh)i t-ls-+cq xve /5-uuobjects 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 objectsr,;ajdozsn jr.85)cq nu7 yz.vz5 bu+ more than 70.0 cm away. What power of lens should be prescr onzuz+r 8b7y;sz .. jvj5)n5cq,d uaribed 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 m: /if zlc. lunx5tx38glasses whose lenses have power of -0.15 D. What is the person'3tfli8c ux 5xln:z.m/s far point if the glasses 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 tomu*y1q9h o 85if -7d ut5tvawe correct for farsightedness where the uncorrected near point is u tfe qwi5td7*hu19 o v-aym8575 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 cmnfx 4-nrl-f1c svp3y 0. She places reading glasses close to her eyes, fxv-03flnp 4 nyr1c-sand 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 nuc 81zzu- ta7vewspaper held 25 cm from his eyes, if he wears gu 8tu1z7azv -classes 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. x(ai,k1yt.7ex+ gglp5 i d14 rfim*ymA person has a near point of 25 cm. What is thm +7 4 rte, g5y*fyikigadx1m(x pil.1e magnification 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 cm. A person has a near point of 27c;fhwq 2q.kr5 cm. What is the magnification of the lens for that person when their eyes are focused at their w2r;.k 7 cfhqqnear 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 th:s0i afm, j.ekd*i2ye e magnification if the image is viewed by a ,d02sm j.k feiye*:a irelaxed 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.h71w e/tjpf(ia 2gx r80 cm as a magnifying glass. What is the maximum possible ma7i atw(re g/128jpfhxgnification?

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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 gca;+kiwlro.utb.3fe j5 e wn 6t(b/+5.0 cm as a magnifying glass. What is the magnification if the +ut.6tnae +b j3(woglk; bfre .ic/5wperson'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 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. ;l4s ejv)e y)vaj9n5zx ro8k ( If you were to use any two of these lenses to build a telescope, what is the maximum magnification you cezj;)yolrn ks9jv5 a )xe84( vould 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 lenseywyu y2+b 8w0.nxpv b8s of focal lengths 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 t wwyb 8n2 yuyb8+px0v.elescope, 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 ha x; mmctuel8-f2qj34es a focal length of 200 cm and its eyepiece has a ;q4x8m 3l-teefujcm 2focal 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 gq 0ty (gag52ug a8-z/mare 8c10. If the telescope has a converging lens of focal length 50 cm, what is the focal lme /0cg(a8ug q5 8zagra2y- tgength 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 magnifpai( k-xuu4r *yk))fgication of 10. If the telescope has a converging lens of )-fprix gyka uu*4k) (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 telescope is limited (hm v3ft z .i5;+ggltx)ahw y)to a length of 20 cm, what is the approximatexif .gmh+zt); )avtl5w( gh3y 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 eyez9z 7v+ag1d tjpiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sa 1+zgaz79vjt dmple 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 :che/lh3xphwq6 d5 6/fp6tryfocal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objecti3hlhydcw/t:q fh6 p/ 66epxr5ve. 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 3.00 mfnx obzagufu842 7 k:53it l)vy jfc71m and an eyepiece of focal length 6.00fcj)7n4ia vx5 u27k:8fgu1 fytlbzo3 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 18-cm barrel and an w +j,yv9f-potf,yc/n objective with a focal length of vp+y-, cfwy9t,jo /f n8.0 mm. What is the focal length of the 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 Orion has an angular separation of 1;h7: brngb /-/;bj fc i9fa3zud e.cqx0-5 rad. If the wavelength of the light from the system is 500 nm, what is the; /;in3:b7g- ucf d9/ r.fjecqahbzxb 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 designed to resolve objects which are 0.010 mm8 9jp 8usiawn9vd30ltvvhh ;1 apart. If the focal length of the objective is 4.0 cm and the wavelength of light used isl8dnis3t;v98 uvah j hp91wv0 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'bvxwt(c.lz2;q f p, +xs eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what faw,+b2(vfx c.ptz ; lxqctor 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 Spacetyzxy2 m (b4 qe (ks9bnl.1mq* Telescope has been placed into Earth orbit by the space shuttle. What(2tb1x4mb* mnyyeq z9kl( .qs angular resolution could this telescope achieve if the wavelength is 500 nm?

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