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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 open and5lr.adl yub6sun3o9-57vuqk the film is exposed in a camera is determined 9kv-qu65oayb 7nr5su l3ldu. 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 camera i/uvj*pgohxpa 3)s e5 ;exim3 4s 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 8yng r*jmip4 0k+ ge:d6fyo462 xbyzuvaried by sliding the lens forward or backward with respef2+ogbndg yyi604j m*8r ue pxkz6y:4ct 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 cowvn2/ei;3j w r6 wxm.grresponds approximately to that of nor v;we gm/.wx6rj 3nwi2mal vision is referred 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 referred to:8sqxv f5,ci m*5xggk 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 ofvqet -ot*j-qr vm5, ymbbl7bm3 b/6y, view than that of the eye and through w,5 qt t-*job v7 3mbbmqbe6r,yym -v/lhich 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 / .dg)4r eu(l2tmq/ rs3ct cibdifferent 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 refracwzt:11j dr2jp eu5ht n,rh(g,tion 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 clearly i9j+ kohj q0+ v2)uibi za.s6izs

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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 objectfh4bg; 95cm.cxj cb;w s 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 tolca3exxq/k, g-+qhg/p v i om; ct4+y0o long from front to back, the person is likely to su ky /m0t -;qev+,g/lgh xqi+oc3 4xacpffer from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usu /sh 9ds2cdahe3.w nk-kiyc :8ally 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, 0m5p b1c+wnn y,8agn ethis gives rise to a vision defect that can be0w,ncg +ba my815penn 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 shorgrg t+:vb (4a i2z/njit from front to back, the person is likely to suffat:zv (ngr i jib+/24ger 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 corrt/ b+nt p*4dcjected 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 ruqh-k 6f8nehjjtso +ln ;, 1;cise to a vision defect- j n6h l; +ot1ek;chq,nujf8s 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 lor : 6-x):hduki4 )*njtbtsoa magnifying glass?

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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 veryab, 0e ehj/cwukt, -+;z;nl ld large diameter objective in an astronomical tl0+ htw c -bl ;eau,/jenk,dz;elescope 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 telescouzd50vo6z ;k-g d eol7pe. Suppose an opaque screen is placed in front of the lower half of the objective l g7uzo; kov dd0lz-56eens. 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 visible ;+c9wva w w4iyn5f,uga *n+ku4j axb 7spectrum, in which 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 thewa na,u9a 5*jf+xk7cg v;wyu 4iwb+4n 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 pt( dj 3/ f(y*oqym6kfmagnification $m$. 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 6i- tcn*zide 5able to see the greatest detail when zie-ict 5 d*6nusing a microscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffp1l )o mbov8 a5zofd;a 5:+chaer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer frob; v6gd/kjn 60f(xsll m

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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 micrco8.b r*0i imtokk i1(oscope 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 dish4.m obyw/ 7tz :epo0nn is doubled, what happens to its resolving power assuming that all other factors remain unchanged? Its resol: ontzy07e /nobmw4.p ving 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 point of 18 cm. r5a5h u:brii,3l, btcWhat lens (in diopters) will allow thi 5ta, 5hlr:cir3u bi,bs person to see distant 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 more than 70.0 cm away. What power ;k*uqn,61o kqqpeaw5 of lens shouu;n61,kqao* peqw 5 qkld be prescribed 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 glasses whose lenses have fquyv z8i.:zo: 9lvj v y2:1i9yp;oon power of -0.15 D. What is the person's far point if the glasses areoy:lvziziy o; 2uy :v: n.9vpqf 91jo8 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 needex;8nmt fu d5om7k+ yw(qs*h u8d to correct for farsightedness where the uncorrected nea85q;*7 oxmuft(ywhm+ud8k snr point 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 100 cm. She 9j ykn* xg:dn0places reading glasses close to her eyes, and with themxnd 0yjgkn9 :* 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 fromcx qzz+h7f5z ; his eyes, if he wears glasses 5+7zhx z;cfq zof
+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 person has a near ponj)k1dpc wygjwp;9/. g4v,7 ;y ivrydint of 25 cm. What is the magnification of the lens for that person when thp 7dv/ y)yprkcg,4jg w9jnvd;i;1y.weir 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 cwre6a/0l y v8 ps*xwf20d itivmo3)tp40lm)wm. A person has a near point of 25 cm. What is the magnification of the lens for thax2 impevtdwwo 000)3fswp6imv /r*4l8 y) lt at 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 5g( vkl6jb9to7.0 cm. What is the magnification if the image is v (tkjb gv5l69oiewed 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 focal length 5.0 cm as7 /evwzc),qd j a magnifying glass. What is the maximum possible magni )ev,jdz7qw /cfication?

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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 5.0 cm as a magnifyi 7q+6bgi u*fning glass. What is the magnification if the perso7i gb6qun if*+n'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 of1 ihxg8t db* r7frx::l focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If yo*:: bdrxil1tfh 87x rgu were to use any two of these lenses to build a telescope, 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 (gz,6;l mfj9lekwr .hv0yff7 focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two of theslvyfegj,( km 0hzw.f76 r 9;lfe lenses to build a telescope, 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 has a focal length of 200 cm xs psqhsw7u+*pf (itlc193 p/ and its eyepiece has a focal l+ss*7fit s3 pqp9lwchpx( 1 /uength 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 magnificationba )dw*8gz-lu1yox- 1 tu(roh of 10. If the telescope has a converging lens of focal length 50 cm, what is thew l* 8-u-zdro1bat1y x)(oguh 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 magnification of 1m/pvsd ay;a+q0 9*rou0. If the telescope has a converging lens oroaq/ *sv; m+pyu0da9f 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 -nax7e:9kl 3gdc igb*telescope is limited to a length of 20 c-nia*:gc7ed 39kblx gm, what is the approximate 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 6 l st34dbpm.y/y2l8njecy- vmm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A bloytpey ym/. lb 4d cvns3lj-628od sample 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:kvc, gk *)hdb lens 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 is the:v*,h kkbc)gd 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 ol)g ;)/ujf+p:loe ghl2y anh/ f 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnificyalfh;lojn / /hu)g)lgp+e : 2ation?

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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 bo/vt /whxw9sm6v. wueb v9.oup5 (rn 0arrel and an objective with a focal length of 8.0 mm. What is t5xw9h/ sw.vu (tmerp06 vn 9obovwu ./he 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 sepa3mkdry t8r)1r ration of 10-5 rad. If the wavelength of t)kr1y r38rtdm he light from the system is 500 nm, what is the 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 0.01g)sa372 z(,hp bsjwlrw2uc;g 0 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter of the objecp7ws )z r3chugalgj 2,(bs2;wtive?

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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 zmr3t7hf)+gpb sj0 2dm 7ap 4sx+v 0ljmm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution sm+3 hx 7+gs0prb mjdj pl0t)7 2fvaz4change?

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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:8qczz f i1kult7hl-- placed into Earth orbit by the space shuttle. What angula-1iul zq:fklc87t- zh r resolution could this telescope achieve if the wavelength is 500 nm?

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