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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 ml24:kuw6 duagvau5 wyc382h kjc2:r and the film is exposed in a camera is determined b23:4k alwh5 ar2uwvcu8jk 2gcmy6 d u:y the (1.0 分)
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2#
 
单选题搜藏此题  
  The amount of light reacx hcx w,p,qj(ja0- j-2os* zyrhing the film in a camera is determined by the (1.0 分)
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3#
 
单选题搜藏此题  
  In a single-lens reflex cam11kth3w x xre:xn6f ua( j)-suera the lens-film distance may be varied by sliding the lens forward or backward with respecauxn :k 6trh11s)ex-fu( wjx 3t 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 corresponyv:jqsj5ue kn,.6v.8ht 8 dt44k ptaeds approximately to that of n :ak5.e.8d ukj6tvej8n4t,p v htys4qormal vision is referred to as a (1.0 分)
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5#
 
单选题搜藏此题  
  A camera lens that ainn 5 37/clzmgas5s8* 9thsfuszig1+cts like a telescope 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 covers tt+m+ i 1hko *.0mkg23qtpkzdnhe film with a wider field of view than that of the eye and through which objects appear smaller is rtk m0d .pki+13nk*mtg z 2o+hqeferred to as a (1.0 分)
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7#
 
单选题搜藏此题  
  In which of the followinvhj6t4s , ph /oxx5*fng ways is a camera different from the human eye? (1.0 分)
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8#
 
单选题搜藏此题  
  The principal refraction of light bddr(4my)biw 7y the eye occurs at the (1.0 分)
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9#
 
单选题搜藏此题  
  The closest distance at which an eye can sm,gu we(bpf 6 aw8s(va.4x+bs ee 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 can see objects cleacpb-)*/vv)2 1 +dnb up3e/zvnwivtayo:gno* rly 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, tf8rl ,bg+ u/r7: gztamm oy0.ahe person is likely to suffg8.amr:a btfur 0g , +7mlzyo/er from (1.0 分)
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12#
 
单选题搜藏此题  
  Nearsightedness can usually be correctw2u5pk q/wtcj,;( jytvtc + l7ed 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 bn t)qp ;m 6)9youo-pc7bk- qjjack, this gives rise to a vision defect that can be corjt6nk-qouop7 jyc) ;q)-mp9 brected 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 z z +sle +hd(myeup vv2xp,x.eh 60b)6likely to sufp)v,lzxp x6s v u m6+eyhbh0(2.+e dzefer from (1.0 分)
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15#
 
单选题搜藏此题  
  Farsightedness can usually be corrected zs k+* n*1zi5 8auv.s-hxdroxwith (1.0 分)
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16#
 
单选题搜藏此题  
  If the human eyeball is too short from aw6a :p.lys xa2 6,td ,5zplodfront to back, this gives rise to a vision defect that can be corrected by :6azwt6 ,ps. ox5plya,2 laddusing (1.0 分)
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17#
 
单选题搜藏此题  
  What type of lens is a magnifying glasd2(/pbyb 90nuug2 knz s? (1.0 分)
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18#
 
单选题搜藏此题  
  An important reason for using a sb viw2c,c*0es 3ls7h very large diameter objective in an astronomical tel b3lscw,s7h0s2* ivecescope is (1.0 分)
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19#
 
单选题搜藏此题  
  Consider the image formed by a re;4y ze1.kx967vo:p udefng eg fracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect w go.67d;f49 u1k egexpynevz:ill this have? (1.0 分)
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20#
 
单选题搜藏此题  
  Assuming the film used has uniform sensitivity throughout the visible s0 *6k 4lpiddthpectrum, in whichil4d h*k6pd 0t 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 telescope used.) (1.0 分)
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21#
 
单选题搜藏此题  
  A refracting telescope h.a6 i9zvpi aq,3be3 ;eyaqbd6as 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 to bpa26jtq-+le ho 4m(n te able to see the greatest detail when usitt46h(- pan2j+eq lomng a microscope? (1.0 分)
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23#
 
单选题搜藏此题  
  Spherical lenses suffer f1nd n1uc7fza- y7ih -bnezx3( rom (1.0 分)
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24#
 
单选题搜藏此题  
  Spherical mirrors suffebqk( xb 9bo.-dr from (1.0 分)
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25#
 
单选题搜藏此题  
  The resolving power of a microscs8 (zk1arb gk,ope refers to the ability to (1.0 分)
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26#
 
单选题搜藏此题  
  If the diameter of as5l4u:wns y6)rhl k, f radar dish is doubled, what happens to its resolving power assuming thaks fy4hln:su5r ,l w6)t all other factors remain 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 far point of 18 cm. Whaabe / ,i8tm(iut lens (in diopters) will allow this person eia ,( 8bi/mutto see distant objects clearly? (1.0 分)
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28#
 
单选题搜藏此题  
  A person cannot see clearly objects more than 70.0 cm away.s/o)a/06iwn; b6j n;kwup g hb What power of lens should be prescribed if the glass is to be worn 1.00 cm in frowp h0 jb ;ak6)sbg/wnni6u;/ont 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 hae.d kbx ;ahuv8/(q8hot(n b0p ve power of -0.15 D. What is the person's far point if the glasses are very v/exqh(dkaob8tub8pn0 h;.( close to the eyes? (1.0 分)
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30#
 
单选题搜藏此题  
  What power lens is needbe on;0j 4;x (mk rsl/hzboz8d;ja 2u.ed to correct for farsightedness where the uncorrected near point is 75l( 8zu0;2ox 4oj;jha;bm ezrk /s.bnd cm? (1.0 分)
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31#
 
单选题搜藏此题  
  The near point of a farsigh:qje9 0.+tz t6 frybuuv ,mn-mted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of uv n b.6u-t9y,mjrem: 0f tqz+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 newspaper held 25 cm fro 3pk4jm/,i ereuqj 3i;m his eyes, if he wears glassesu erq e 3/jm;4i,pki3j 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 fu- y-s6: *fcsu l.ksytkqules:p00 4 mocal length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens fos04mup6 yte.*s k yqu -:lls-0kcfs :ur that person when their eyes 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 leng d4vew4rn k m884flwv)th of 10 cm. A person has a near point of 25 84vvk 4 mnf8e)lwwd4 rcm. What is the magnification of the 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 7.0 cm. What is the magnification /l+5y 69jutcfkxe.3. btq gwoif the image is viewed by a rec + 5w fg/ujt3.by6 9qol.ektxlaxed eye? (1.0 分)
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36#
 
单选题搜藏此题  
  A person uses a converging lens of focal length 5.0 cm as a magnifying glass. W m9tey3bgh:gzlt 40*qhat is the maximum post9ez 4*qt :bghlyg0 m3sible 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.pk1 f* yjs(am:0 cm as a magnifying glass. What is the magnification if the person's eye is rjm(k:p a*s1yf elaxed? (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 1pmwuxp d:8s:3. vol m06.0 cm. If you were to use any two of thesev3u0m. l:pdp8oxw: ms lenses to build 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 7 ejwv*b .bclx0pk 1l.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 telescope, what is the lens separation for the ma 1w0e7p xc.lbvj.b k*lximum 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 ofi e06 lvb0,ujq3cj7q42dmweq;5c bc s 200 cm and its eyepiece has a fdqe 3b2 iv0jqb7lc c,w4s jquc0em5; 6ocal 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 and+ c1ogrf.1px (4x-8a nnhjhti 66eng astronomical telescope with a magnification of 10. If the telescope has a convergia hg4e j(+ nr816pd16fthncxgx-o in.ng 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-1bryi6n/ xncp a;er 6 an astronomical telescope with a magnification of 10. If the telescope has a converging leeyc p 6/i-rran 61;nxbns 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 tele;0c isw9w liq(:x*:qtx0 i+)fpgta v tscope. If the telescope is limited to a length of l;x 0icqta9x0 (pgv*w)ws:iti +q:tf 20 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 lelw3 4k5uim zqf-7nn*92qrjd1c xes7 d ngth 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far apart 9i d 57fq-21n73dnqklm* ejrwszxuc4 are the lenses? (1.0 分)
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45#
 
单选题搜藏此题  
  A microscope has an objective lens;k:xc+qmv - w7to3t ny of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. What ikcxtnqo :t 3m; 7wv+-ys the overall magnification? (1.0 分)
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46#
 
单选题搜藏此题  
  A compound microscope has an :-z+nqlz0; u+stufo wobjective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separq n uzt;wzus:o+f l+-0ated 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 barrel and an objective with a focal lengt k9d4/(0btpdj own ; o)bai4pjh of 8.0 mm. What is the focal length of the eyepienopi 44;pba)dkt dbo(0j/ 9jwce 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 consj v9ei2 pknq :)av(;n3+hrvsntellation Orion has an angular separation of 10-5 rad. If the wavelength on(9nnkivs)a v pqve r3jh;2+:f 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 objects which are n4,ny;wwh ag*0.010 mm apart. If the foc g,nh;n 4wywa*al length of the 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 from a diameter of 3.fk6e:m z,nq j25 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle q62en:,zjfm k 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 byfzlol2 d8u5 yjf5r 82s the space sflos j8l f 258ury52zdhuttle. What angular resolution could this telescope achieve if the wavelength is 500 nm? (1.0 分)
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