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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 opep uv+jap,tpdr0 27q(hn and the film is exposed in a camera is determined by(p trja2 h07dp,+qvu p the (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 deter:rv r*w cxzjo vvki43nu3;e,- mined by the (1.0 分)
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3#
 
单选题搜藏此题  
  In a single-lens reflex camera the lens-film distance ho8v(kig7 8immay be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy pi7kg( mihv8o8icture 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 thatx..ycbwki fsylki3 lvj2t98p64*i6o corresponds approximately to that of normal vision is referrei o4cjs2.9vp yi*iy. 8fl6tklb wkx36d 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 imagesc5,y.b19 cp (prpyxzg is 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 with a wider field of view r 6hj*o1qqs.s than that of the eye anq1.shr6sj*o q d through 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 different from the h4ipgm((s /l, zwuaa7suman eye? (1.0 分)
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8#
 
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  The principal refraction of light by the eye occu/.wl3hlo)qy p rs at the (1.0 分)
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9#
 
单选题搜藏此题  
  The closest distance at whi, x;v1 ka7e lddk7bumnu:+zi/ch 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 an eye cjs,h ;,q/ ypdtan 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 fronrevp6dz4/nq *ixg*b/b 2ln +it to back, the person is likely to su db nz*/biqn6gp/xv+2er i4*lffer from (1.0 分)
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12#
 
单选题搜藏此题  
  Nearsightedness can usually be co(kv:bur ,/ow srrected 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 gives rise omom uc exeso/q27z1ez.h *44to a vision defect q1hm*o /2.oeu z4cs4mxe7zeothat can be 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 person is likely to rm7ee .;rg 8vysuffeey7me .rg8vr;r from (1.0 分)
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15#
 
单选题搜藏此题  
  Farsightedness can usually be 81euyy**bxnyu w6li2 3nm; wwcorrected 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 dnwtim 3z5w1r/ lmu4 )back, this gives rise to a vision defec w i)mdn4tzr/3 5wulm1t that 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 magnifyinfv:-8d9w mrdt: dx nyelj830 kg glass? (1.0 分)
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18#
 
单选题搜藏此题  
  An important reason for using a very largmtq/mks(t 29x0 3inz ze diameter objective in an astronomical t3q9x zz0t(t/m nksim2 elescope is (1.0 分)
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19#
 
单选题搜藏此题  
  Consider the image formed byq()sv 7ge:2kv ewcy6.te owpl +8yr;v a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective )6w 7qv sg(e2ck +e8lp.:vo y;yvtew rlens. 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 sensihthc rguhf/ya/1 ;.8w tivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (Th8;h h/hu/tgr.1w ayf ce 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 has7cnp rt 7+3jveiw(f c4 a magnification $m$. 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 t 5yettc *by;/ho be able to see the greatest detail when / ht*beytcy;5using a microscope? (1.0 分)
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23#
 
单选题搜藏此题  
  Spherical lenses suffer i;ienf * :q0hlfrom (1.0 分)
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24#
 
单选题搜藏此题  
  Spherical mirrors su:szte- + ykpr9ffer from (1.0 分)
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25#
 
单选题搜藏此题  
  The resolving power of a microscope refers to the abi ;e(q fkd;p,eflity to (1.0 分)
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26#
 
单选题搜藏此题  
  If the diameter of a r,rml w; urs.ob v1-(4.bbmn o-tc lz1eadar dish is doubled, what happens to its resolving power assuming that all other factors remain unchanged,(s4v1mon.ulwzb ;1r ebbt.- or m- lc? Its resolving power (1.0 分)
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27#
 
单选题搜藏此题  
  A near-sighted person has a far point of 18 cm. Whadjawa .*a0rdp0 pe +1v4 3p4fs- ykiukt lens (in diopters) will alloa0app wk-0du vr1ey4s dji4f.+a* kp3w this person to see distant objects clearly? (1.0 分)
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28#
 
单选题搜藏此题  
  A person cannot see cl 2v tpriiikjk760 )3v *cxi;dvearly objects more than 70.0 cm away. What power of lens should be prescribed if the 3620)rjticpvik k vx *d;i7 ivglass is to be worn 1.00 cm in front of the eye? (1.0 分)
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29#
 
单选题搜藏此题  
  A nearsighted person wears glasses whose lenses have power of -0.15 D. Wgjj8w r5n9/de jc 2m*jhat is the person's far point if the glasses are 8cj 5m* negwjj 9/rj2dvery close 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 farsightednfom1 09pusbx76j c6reess where the uncorrected near point is 75 ose f0cb 6um7pjr1x96 cm? (1.0 分)
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31#
 
单选题搜藏此题  
  The near point of a farsighted person is 100 cm. She planicdit) um99mii y574ces reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is requirey) cit94m5ndi7um i9i d? (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 hn wfn6b wn+f,z/z vf,ifh-1 4we wears gl,nf wzi-h1nw /v+f4,ffb nzw6asses 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 focal length of 10 cm. g2l:cdc,6 kid ytb9c ( 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 infc :gc ycddl,bi62k(t 9inity? (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 ne,k2k(6nsoy hq)ehs w 7ar point of 25 cm. What is the magnification of tky7 )s( h2wesoq knh,6he lens for that 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 focal length of d k x08zxxrj:67.0 cm. What is the magnification if the :jz8xkx6 r 0xdimage 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 oiz mcqw ;0a3j3f focal length 5.0 cm as a magnifying glass. What is the maxim c0aw;3mjqz3ium 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 uy i2.j1zm z 8ij(i88s. bztwfglass. What is the magnification if the person's eye zu j8z mizyw1(i.t fi8sb2j8. is relaxed? (1.0 分)
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38#
 
单选题搜藏此题  
  You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. f3* (u2d8yhex gf .,t5kaui.04qmn +mfw xymd If you were to use any two of these lenses to ba q8.d u*3mw54mukffh(.x+ n yeif md0y2tg,xuild a telescope, 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 cm, 8.0 cm, and y gu9ggzns+/1t n.5inps d0t(16 cm. If you were to use any two of these lenses to build a telescope, what is th(yg1ts/0. nsp g it+9nzgun5d e 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 4vlboi ;u)m 5d t,j* jny*ojn(d.zhe 4cm and its eyepiece has a focalldv4t.) 4h5non , *id jjmuo*b zj;ye( 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 t iiau1e g481ovelescope with a magnification of 10. If the telescope has 4e1goi uia 1v8a 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 astr :k;q qleoinl;(e ttp7i p;-l2onomical telescope with a magnification of 10. If the telescopttql2lp;:ken;o;( qei -l7pi e 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 10X telescope. If the tele y-x01-xub)pnemql6i 17 , cb lnd6cvkscope is limited to a length of 20 cm, what is the approximate foc6y-cpmnqxd -k6l l v,)n1icu01x bb7eal 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 eyepihh3r07 ej pt1v 8yjtn z-q)d/zece of focal length 20 mmyp3zdzt /0qhj)hnr -8ve1t7j , 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 1.4 mm and an eyez4q eqe7fuq(of ts * ak7cd062piece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objecti (a *f6qcse0f7z4otqu2e 7 kdqve. 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 leng33skvqk0d 7 9.z tf1pe6 2 dmpgndcjp)th of 3.00 mm and an eyepiece of fo91d kc3kn ej0p7 p6dzp)t3 2v.gdm fqscal length 6.00 cm. If the two lenses are separated by 40.0 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 barrel84 pc(s6bkvtx and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiecev 6kb(4cp s8xt 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 constellation Orion has an angular separw qz4ljgj+moy/ 37p i+ation of 10-5 rad. If the wavelengt gqjpo+7 lmj/+i34 wyzh 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 designed to resomea1/ .sio7ewsli +c94kdz j- lve objects which are 0.010 mm apart. If the focal length of the objective is 4.7 +ic9ksw e.zj4a1i -d es/olm0 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 from a diameter of 3.5 mmo*ybqfu n . *4d4l 1 yv1n7qe0xctx6mc to 1.5 mm as the illumination is increased. By what factor does th*7mcdyn6lcx4oyxu4 1v q n.q t0f1 eb*e 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 Earth orbit bye ((/ke z43nbn- bjfqw the space shuttle. What angular resolution could this telescope achievefnnb(jz4qe-ewb k / (3 if the wavelength is 500 nm? (1.0 分)
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