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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 and the film is exposed in a camera is um mg1j-m*b73rnhdx x4ctl1: determined by t1unx:x4rljt dm*7bcm m -gh31 he

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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 aj.ev*r* to+v q1ay4 nq camera 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 dista+u w/+ 6e-/bkna5p rmo tk1advnce may be varied by sliding the lens forward or bkwea /+o kt +mnu6d rp/1v-5abackward 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 witr7 wtg s4lxk79h a field of view that corresponds approximately to that ofrgx49 7ktl w7s normal 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 v8 bk +d s,q)gg:qcm9;eui- sg7we hn9like a telescope to magnify images is referred 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 p-: (aneak(g/vo ,bmxview than that of the eye and through which objects appek/(( pabg:v a x-n,meoar 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 waoo 0: :az:jl.x -drmswys 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 refraction of light by the eye occurs at t szv 1uh0 +ngdmr-7x5uhe

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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 ey(4kho :4 j+m/f*xv9 pjjzd0xd*bqg 4l ry +dtye can see objects 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 qglni,9qzs+xja0i2k-2b/ w y at which an eye can see objects 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 backq 5q1y irg39v98vly (ho clh*f, the person is likely to suffer from 3i95h1vq9hyqgr c*vlof8 l y(

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usuallyf at7uz -17z2 8b*/kzrta h, zpo4w+k y8yuhey 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, this gives rise tmlrz6 vlf :m4pv:eh83 o a vision defect that can be corrected fel:vh:v46pmz r l83mby 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 short from fron+qel-5jcme6xng5k xp5crs --1n apa: t to back, the person is likely to suffer frjrx:6m- cgce +ka5p- pls 5nnax 1q-e5om

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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 corrected wsl- ls7::qyw cith

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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 rise to a vis j0hpg2h4c 3tqgqr )3pion defect that can be ch2)4pq hcpg g 3r3tj0qorrected 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 magnifo:5 ypbth, agy78t6olwobd;i8av m) 6 ying 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 very large diameter objective in an astronomic+ :p yitth7j ; .q1joyvon7mk7al telescope ivokqj1 ;y j7nhity+t7p:m7o .s

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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 telescop0..n chmh cpf vw90gr *,fcxm2e. Suppose an opaque screen is placed in front of the lower halmpwcfn2. *vc,0 fh9c .m r0gxhf of the objective 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 uen *;g.gt;ow sensitivity throughout the visible spectrum, in which of the follnwe * gu;og.;towing 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.)

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A refracting telescope ha cpe m**i)gp(qs 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 u6485ermjpmsey+f(v* bu + lagreatest detail when usin4ye ajfsu6+5b 8*(+m lv rpmeug 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 suffer froi:fjsj o;)9:xnt 8fdz+kee 7am

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors sufferdlotj ; +h5*hxrk+ t/z 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 abilieaboz+ha n9..-qfx: zqn5. s wty 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 dish is doubled, what happens toxzx93-p run 4h its resolving power assuming that all other factors rem3h- rxux 9pn4zain 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 point of 18*)dfmct 6jlp+ cm. What lens (in diopters) will allow this person to see d cpfm6lj )+*tdistant 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 moruc glac,7v4w 1e than 70.0 cm away. What power of lens should be prescribed if the glass is toucla 4,cg1w7 v 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 lensesl.utdi 4wc0myx5 l7 z) have power of -0.15 D. What is the person's far p zmcxu)5l4wy70 it.l doint 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 toszj6prhpn)04 py8 o2p correct for farsightedness where the uncorrected nearn pps4yjh0p2orz8 6p ) 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 places readinnvpo b*1 x1il5g glasses close to her eyes, and with them she can comfortably1v15 b x*lnpoi 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 hel+)aj;z t-ta3uwlok 8cd 25 cm from his eyes, if he wears glasses tz-jtu+ 83aok) cwl;aof
+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 ha)cw fl1wp7lpyd:5 6 n.od ul+qs a focal length of 10 cm. A person has a near point of 25 cm. What iwd.d l uoc :w)1lyn+56p7lpf qs the 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 personfb4 hf8.7rwkp 3j;icv has a near point of 25 cm. What is the magnification of the lens for that person when their eyes hb 7fvifc8 k.43rwp;j 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 7.0 cm. What ufbac zds:y54d:1 o/ois the magnification if the image zf4yao1d /docsb::5uis viewed 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 l03vv wqpm7 -q5.0 cm as a magnifying glass. What is the maximum possible magnification 0pw7vm3-qvlq?

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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 5.09*2nu-y9vtru eim p/ o cm as a magnifying glass. Wha ouu/pet2n9m iv9 *yr-t is the magnification if the person'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 16.0o9s4ond j 8ppjw0z,7ei fp9s, cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnification you could4d,w079e ofjo8 ppin, sjzs9p 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 foca3/wr s1wc: ,c8ryl,arg -r:wncm7d)rgd :nd d l 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 teleswr 1:d3lrm /8:n,r d:dwc7 )g nr-ds,rawgycccope, 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 tel0 (sjnusio3rups50 qm;1u6o qescope has a focal length of 200 cm and its eyepiece has a focaluu o0 ms;3(1iqqjsso 06u 5prn 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 6 q +k8m,lfm3ksh3dj v10. If the tel hd 36jmsm8 v3lqkk+f,escope has a converging lens of focal length 50 cm, what is the 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 cf3alwgghb/ ,xibivly i);b3c9 0:; g6m pep810. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telescope?i8pg c,mcf9 6y; lwh/0i ilb3b v3ggepb);x: a

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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 limitedsszizcrfod2p99() x64tve c-*-anit to a length of 20 cm, what is the approximate foco9 nti9)z4stdi-f-(cv 2r asxe c*zp6al 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 eyepieceybmx f 1-s7+vd u2zcw07lio s7 of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objec1s c-7buwio zm+y 20xlfvd7 s7tive. 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 ey 5-1ed/urrrk(hs4alewgb+9 e/.osa h epiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the oaek r4wg/1d5 .ehsla srh(9u o-+reb/bjective. 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 microscopxn-/5kb h2q5t ptm n62 jb:qrze has an objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated byth6b qb 5:t -pq 5m/nkj2z2rxn 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 m1zk9:/nq ex kf d0hdu41i.npyqi3j2 and an objective with a focal length of 8.0 mm. What is the focal lenh0nm 9 e 4ji3k1u.fi:qnd21k/ pydxqzgth 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 separatiortyros.3d 0ej4 qbvetx60v7(n of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest aperture (diameter)bt6xr 47t oqe0( rvdy.3svj0e 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 designeo9i8/by5fc dvn (mey24 d i2byd to resolve objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength o v/5f cyyom9 ne2db(dy i2b4i8f light used is 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's eye changes from a diameter of 3.5 mm to 1.5 mmfwd( 1-a dyz(+r kaoy8 1uhdtz/l0n:k as the illumination is incre0/ zutyd (aw1 8ok(ddlf: k1-zh anyr+ased. By what factor 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 Space Telescope has been peu6. jor:fk00q 3f bqulaced into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if thefjeo6.k00uf3bq q:ru wavelength is 500 nm?

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