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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: 游客未登录  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 tpetoq +cx.y,- he film is exposed in a camera is determy+ oxt,ep-q.cined 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 reachik pjunb5a g4/b)v.es1sj-fb3 ng the film in a 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 distanc x40-z ,ebsl4yua.s0 qspbc ma)xt* ;kr9rk.ne may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzst0s90;.ry rm s*ax4,x4 uc a)qe k.bkznl-bp y 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 ofp73:p4hw9p,6ok cku y-)fhyr0cy ga. o g;ylb view that corresponds approximately to that of norml gha7pco k yf4,6wo:r.y;9 k)byhcug -p03 ypal 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 refern sx4iqxb 7 ky8-d41jkred 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 view than te51ftyku /1 g9zji- bhhat of the eye and through which objects appear smaller is referred to asgkjt5-fhyzue/ i9 1 b1 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 differ8y h qgkg6ycobpll/ 9pmw77+2 aef 1.xent 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 refractio0w pmq;qsd 9d lse78y34nm,w bn 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-3:ri+pl*7qxe+v.a ey5opolf g*g8e xr zb l- 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 at which an eye +wu9 .9+.fs) zzd uod kehkn)vcan 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 fro7uby-.0 *jh(h/pg tq)o u frvont to back, the person is likely to su vhrqth. 7u/ofpb*yj(g0u o-) ffer from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usualkv 2blyg50/ 58 ktjt js j15slh8oas-lly 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 lo86n9 gn6+a,6m ll t6vd n )iqm wzctlgebn3)g/ng from front to back, this gives rise to a vision ml89w)ni+ 6 g 6l beqn3gvn/,mtl)na 6gctzd6 defect that can be 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 short from front to back, the oh+ i(,0y.rqd2 ybz5c2mep3yu ge( .: cqjuabperson is likely to suffer oc,(.bd+ezj2 3 5(u magyqy.rye :upbich0 2q 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 beub2vxlmv2iobr9 nx: );yl;2h sug z7*n7. uoe corrected 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 risszfe7c05 4okz cf8e63 ctg/aei hk7.v e to a vision defect that i7a4v8efk/z.cc7 k5htf0z3 ecsog 6e 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 a magnifying gla)rbpgag 9j,. (+cwkja w w/5mxss?

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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 o m3s( e/irzg3in an astronomical telescope ie (iogrs /33zms

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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 3g7wj x.l;ey2axcm o +6m1kp hby a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the ob 2y6+1x7pw;lge c3xhomak. jmjective 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 unifor/ jf ;2-p,w5*fe 6s hhoic me1whnyss(m sensitivity throughout the visible spectrum, in which of the following cases would you be able to biw 2hsee (m*nh6pwf ;h s1-o,j5fcys /est 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 51dd y+ejj9)-;*idi w (pubpq exvi 4xhas 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 light7ki6zw-s x - tvl(dg)tqz:f ;e would you expect to be able to see the greatest detail when kv;tsetz-z: dwgfi67(l q -)xusing 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 suffer3zay2 r x 0emg( ;876rhgrwgjh from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffecu * cn 2mrzs:.ymqc;(r 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 ;wl9j2 2oifkshxxs ;bg-/55g zqu7gf 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 dish is doubled, what happens to itsakn hehlphis3 n9.1/7u 2i2yn resolving power assuming that all other factors remapkhan/3 .i21 i2yh h9uenn7slin 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 cm. What lens (i7s9+bxu+ u1k1ev v5arrh*zbl n diopters) will ale lb 9b5+h1*vrv1ur7 uk+zxaslow this 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 7; 794i/or z,su;p poiv(+bf of+urolsw, b2cj0.0 cm away. What power of lens should be prescribed if the glass is to be worf 4iou wiop/bso ;sc;zb f+r9j(,+2r,p7lou vn 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 whoe ;0 5spauga5 ,k*ujoqh;sr w3se lenses have power of -0.15 D. What is the person's far point if the glasses are very w50qsaeuh3rg p sjua; ;k5*,oclose 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 neededb gylbb b6a+, 0b5)c2jrgox5t to correct for farsightedness where the uncorrected near point is 75 bg5rb a,xbt6+jb25lb o)gc0 ycm?

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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 pe0,jsx c/xwyp;wk(iw /g8f g 1grson is 100 cm. She places reading glasses close to her eyes, and with them she can cwy/1xw0,jskx 8/gp (gicw;g fomfortably 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 0 i.* eia;q3nd1nq ecgnewspaper held 25 cm from his eyes, if he wears glasses o3;di agneni10eqc. q *f
+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 point t+f.b8n ff* 48okykf aof 25 cm. What is the magnification of the lens for that person when thy f4 akkffbf 8.+on*t8eir 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 person has a near poiny 5p4:5;re blfwic4ptt of 25 cm. What is the m4tlfc: pebr5iy pw5 4;agnification of the lens for that 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 lengt*k0uzy a/h m6fh of 7.0 cm. What is the magnification if the image isy/khu z*6ma 0f 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 convergifd+kv2g 2t 6wong lens of focal length 5.0 cm as a magnifying glass. What is the maximum possible magnificatiofv26dogw2k t+ n?

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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 ma eb 2t31p:zz h09cyb.zv( mqwi;b+ aoqgnifying glass. What is the magnification if th 20bb1.wh+ :qtmei(3 ayb qpvoc9;zzz e 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 mhw9x,6 fr+dbcm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnification yo 9b6+dwxr f,mhu 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 focal lengths fld u)+su-l z32.0 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 separationsu u-d +lzl3)f 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 telesw5tj acrkolmb5/8(+ p0r j6bwcope has a focal length of 200 cm and its eyepiece has a focal l56j50 rwt pjcl b8r okma/+bw(ength 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 omz+io,5e( 4t/dqlcuj-2w xw 10. If the telescope has a converging lens of focal length 5 o-mdxu ,54wt i2lce(/w zojq+0 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 witodd* d2ivot0 +h a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting vito* d 2+dd0olength 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 1f0lw :8 k;ugbik a59cw0X telescope. If the telescope is limited to a length of 20 cm, whaibw 8f0alg kwc9;5ku :t 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 mm and an eyepiece ookk((dkwyr:1(j( 5f vra9abbf focal length 20 mm, adjusted r f5jkbr 9((k 1y badv(k:oa(wfor minimum eyestrain. A blood 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 lens of focal length(4ommx bl os71+7n tqw- z:vvv 1.4 mm and an eyepiece of focal length 20 mm, ad4m+n( -vo lbtw1sx7ov qmzv:7justed for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. 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 microscope has an objective with a focal length of 3.00 mm and an eyeoma )2 pigp(c(piece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the tota(mapc)o 2pg( il 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 and an objective with a fwq-e d3(,(9un+frwb go kliu 1ez1pt7ocal length of 8.0 mm. What is the focal length of the w qu (n lezk1obr3f+,g 9(-up1i7dwte 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 sepko 9q+yfo *+tyaration of 10-5 rad. If the wavelength of the q9yfk+oy+t*o 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 desig/pyhsm7e* 4gq ned to resolve objects which are 0.010 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 ob4g/s* hpe7m yqjective?

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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 boc,8 tm j8w)xdiameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum an jw 88)xmboct,gle 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 beenqa.w yuiqtb+n ;qw:0( placed into Earth orbit by the space shuttle. What angular resolution could this telescope achi.qw :a w0ntib+;u(qqyeve if the wavelength is 500 nm?

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