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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#
 
单选题搜藏此题  
  The length of time the shutter is open and l6, 2oh:pzlxn the film is exposed in a camera is determined by tz: l2olpxn,6h he (1.0 分)
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2#
 
单选题搜藏此题  
  The amount of light reaching the film in a camera is determinedclgnkk.ugs+k rsp 9//;/ kci, by the (1.0 分)
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3#
 
单选题搜藏此题  
  In a single-lens reflex camera the lenpkcuh4nervv0qvk,: 0k.er 82 s-film distance may be varied by sliding the lens for :k8 p0v0v. r,qkr24ehvucenkward or backward with respect to the camera housing. If, 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 covers the film with a field of view that corresponds app3q z 5kjp6vw6wiv4y6lroximately to that of normal vi636z 5vqk4pjl6vwyw ision is referred 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 te.5d y87lvxt rwdts j4;op0r u tg;0bp0lescope to magnify images is referred to as a (1.0 分)
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6#
 
单选题搜藏此题  
  A camera lens that cove 063m2uy 41k zrjtxcxkrs the film with a wider field of view than that of the eye and txk4 yu2 1mck3j0 t6zrxhrough which objects appear smaller is referred to as a (1.0 分)
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7#
 
单选题搜藏此题  
  In which of the following ways is a camera difxjfk lt6 jtid,w3e, :3ferent from the human eye? (1.0 分)
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8#
 
单选题搜藏此题  
  The principal refraction of light by the eye occurs at tmf17w+ qkjr3ydp-zp-as1n3h he (1.0 分)
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9#
 
单选题搜藏此题  
  The closest distance ay pud4woe;70e lwkw*) t which 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 s4l z,bnjxa 6)xybi sj3p 7,9kwhich an 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 is too long from front to back, the person is l8o wszgst4f0 yb/:wt7i 5pb/hikely to suffgw4:poif5sst0 zw8/t bbhy/ 7er from (1.0 分)
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12#
 
单选题搜藏此题  
  Nearsightedness can usually be corrected h *xht3a spz(m-+9kqxwith (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 giv9jsqre3s9 al ,cc,l d2es rise to a vision defect that can be da9, 93lec,crsj2qls corrected by using (1.0 分)
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14#
 
单选题搜藏此题  
  If a person's eyeball is too short from front to back, the persot)tyy(ef 5b1wey ;oi:n is likely to suff w)e;f yy:(tbo 15tieyer from (1.0 分)
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15#
 
单选题搜藏此题  
  Farsightedness can usually be corre*; bz) t4grjvocted 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, thywut7z)7/ oq vzfvj.: is gives rise to a vision defect th yw 7j /.t)zvv:oufz7qat 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 magnifying.dffvr ggv/*a; 4zem. glass? (1.0 分)
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18#
 
单选题搜藏此题  
  An important reason for using a very large diameter objective i+m7, /7gz/mvrs vlf irn an astronomical telvi7sl,+mr gmzrf /7 /vescope is (1.0 分)
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19#
 
单选题搜藏此题  
  Consider the image formed by a refracting telescope. Suppose an opaque screus..sp3 gyx f.en is placed in front of the lower half of the objective lens. What effecty x.p .suf.g3s will this have? (1.0 分)
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20#
 
单选题搜藏此题  
  Assuming the film used has uniform sensitivity throughoc fjh60.q7:1 ddpui chut the visible spectrum, in which of the following cases would you be able to beihcj.6pfu:q dhc 70d1 st distinguish between two closely spaced stars? (The 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 magnification c84czibf 7 4sf$m$. 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 see the greatet2m d/hhf h;i0*y:u v3pvyi0 pst detail when using a h2 uyh3m0p /:yiph 0v ;ivfdt*microscope? (1.0 分)
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23#
 
单选题搜藏此题  
  Spherical lenses suffni-dr*n1xj- 2 axy4kc er from (1.0 分)
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24#
 
单选题搜藏此题  
  Spherical mirrors suffefy1b) x;b fj,er from (1.0 分)
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25#
 
单选题搜藏此题  
  The resolving power s:k,f3j2 koda of a microscope refers to the 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, what happensditq1;.;k-pk m49 dgnd5z 9/ pfgobqe to its resolving power assuming that all other factors remain-;d9 p9 .pbgn d eq;qgkkfz15dmot4 /i unchanged? Its resolving power (1.0 分)
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27#
 
单选题搜藏此题  
  A near-sighted person has a 15bbhi-u j76fky/qj4l p fj; dfar point of 18 cm. What lens (in diopters) will allow this person to see disd b ff/uyjij5blp-;1kj q746htant objects clearly? (1.0 分)
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28#
 
单选题搜藏此题  
  A person cannot see clearly objects mor8ow 5w9zo+rfq2xc2g-fnxo kk0 d70j vc4/sx de 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 /ozx k42o8kj+gxw df osqv20057c dc9wn-frx eye? (1.0 分)
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29#
 
单选题搜藏此题  
  A nearsighted person wears gl8 b xg)cm/ wlx:dy-6itasses whose lenses have power of -0.15 D. What is the person's far point if the glasses are very clobt)6xi- dxc m8/:ylg wse 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 farsight16q91tjyx krwctz l./ edness where the uncorrected near point is 75 /. t6tjqkcwy91l1 zrx cm? (1.0 分)
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31#
 
单选题搜藏此题  
  The near point of a farsighted person nbj+9rzipp: ) is 100 cm. She places reading glasses close to her eyes, and with th9pj bz: ri+np)em she can comfortably read a newspaper at a distance of 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 newsk)4t j7bhgldneok,a g,z22 zw2(( aihpaper held 25 cm from his eyes, if he wears glass khtbjhgaz ,ne(w,(io 2kzdgl2a472) es of
+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 vs1whz* (*f ( u dqbl(.) pnwh/vt:dcdfocal length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyeh:shq tz1w(*p) udd l./dn(v( *wbvcfs 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 oifn1k bj:*(ow f 25 cm. What is the magnification of the lens for tha(n fi *w1j:bkot person when their eyes are focused at their near point? (1.0 分)
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35#
 
单选题搜藏此题  
  A magnifying glass has a focale77 q-+wq bnbc length of 7.0 cm. What is the magnification if the imag+e -7cqbqbw 7ne is 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 leng,p aw0kf(cj)/qnljg -th 5.0 cm as a magnifying glass. Whatj )a-pfgwkc /qln,j0 ( is the maximum possible magnification? (1.0 分)
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37#
 
单选题搜藏此题  
  A person uses a converging lens of focal length 5.0 cm as a magnifying gla1gfnu.5w+h u3tkm dz n3/sc9mss. What is the magnification if the personn c tm3 +gkfwu3/z.n9d 1sh5mu's eye is relaxed? (1.0 分)
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38#
 
单选题搜藏此题  
  You have available lenses of focal length36x m v:ypy/pwm8:pvus 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a tpyw p:pvm/:8x36 uy vmelescope, what is the maximum magnification you could achieve? (1.0 分)
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39#
 
单选题搜藏此题  
  You have available lenses of focal lengths 2.0 cm, 4.0 eqbj +dg92 wd.ipwg f.)g0dy 2cm, 8.0 cm, and 16 cm. If you were to use any two of these lenses to bgfg.2gd e i2.0y)+qb jwpd9wduild a telescope, what is the lens separation for the maximum 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 ey ob-je--+ m axj.6r;-xid2apgmonz :gepiece has a focal j;r:e-ani+g6o jax o-gm.-m -2pbzdx 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#
 
单选题搜藏此题  
  A student constructs an astronomical telescopg+wi no( 6+psfem5r8g e with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of tw psggf5mo+er(68i n+he eyepiece? (1.0 分)
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42#
 
单选题搜藏此题  
  A student constructs an astronomical teles01uzajsagwg( +n/:ze( w f.*udkgd6mcope with a magnification of 10. If the telescope has a converging lens of focal lengtjg u+*gz zwa w1mead(f0k/dn: us(6g. h 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 10X telescope. If the telescope is 34kuu) tyhh4r*y3/mc 7vyqe blimited to a length of 20m434yty bv3hrqu7 hck/ue) y* cm, what is the approximate 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 length 1.4 mm and an eyepiece8ba/ i*-jqsb jw1-h t9tknvnknk/l; 0 of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far aq 0bk */- v-abtkjilj9;skw n8ht1n /npart 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 1.4 mm and an eyepiece of f,y+c *wex2yim1/ue x eocal length u21/ exmye ,xeyw+ i*c20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm 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 mm and-t g6-d hl5ofq an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40f56hg l-- dtoq.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 objective with a focal lengthpji0nr4 0z);r q i;lgspu 16wo of 8.0 mm. What is tig;ol1nw) zu q pip06r4rjs0 ;he focal length of the eyepiece to give a total magnification of 240? (1.0 分)
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48#
 
单选题搜藏此题  
  A binary star system in the conl2b 1rg miv--astellation Orion has an angular separation of 10-5 rad. If the wavelength om2 -grbaliv- 1f 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 designed to resolve ouwb *l z*:z 1xooo;y0pbjects which are 0.010 mm apart. If the focal length of the upool*z *w 1z:yobx0;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#
 
单选题搜藏此题  
  The pupil of a person's eye changes fr 00ymk e2bz.yay/7zc yom a diameter of 3.5 mm to 1.5 mm as the illumination is increased. m/yy.y kzcbe2az0y70 By what factor does the minimum angle of resolution change? (1.0 分)
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51#
 
单选题搜藏此题  
  The 2.4-m reflecting Hubble Space Telescope has been placed into Eam/ uhi1:9r -zc gflm(srth orbit by the space shuttlel m1im9cgu/ rzf: h(-s. What angular resolution could this telescope achieve if the wavelength is 500 nm? (1.0 分)
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