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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 ano)qak*b .xn1cd the film is exposed in a camera is determined by thexc *o)qb k.a1n

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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 re3u j- 0wwsgjy2aching 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 distancg,s vzicwy7aq b 4l4wc)9)q)ne may be varied by sliding the lens forward or backward with wsbn gqi)v9, 7y4lazq)wc4 )crespect 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 p/ /.wvi:*ms zza,yltwith a field of view that corresponds approximately to that of nl y awt*z/ :,z/mvi.spormal 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 imagko j)7 cwtcyde-i;r 572g (ap;fh9qrxes 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 view than thl-hq0.ttkpk cwjs97 : at of the eye and through which objects appear smaller is referred to as 9kh s7ktl:-tcp0. jwq 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 h34 xnn9rl mu gjx2 1tpr85/qyways 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 l) t x3yhx0/of3rdkjd9lo t4 3gu ,t;knight 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 whicdojve do:-.1c+97z n dkqqv h;y;yyt (h an eye 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 at which and5oyt0nf oq1*y3zq i hqj 6;/t 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 back, the person is likelykoc1so 43lq:3irv j,z,9acwc to suff jl k34,r1a:qwsvc 9ccozoi 3,er from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can /9v..gov krq .fux,txusually 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 rik f+a(ho l/8nsu0zu3nse to a vision defect that l /zk+3ohnsauuf0(8 n 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, thb 3 qmzuy7 c/(g4xm9 fzz+a(ame person is likely to sufferz7b(f4zazym9/q xcg3 ( a mu+m from

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usual fip1p -/.yymto.*ks9jr n y:ily be 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 eyeballa3+ellj:rhaz1, bs;l+n0rm q is too short from front to back, this gives rise to a vision defect that can be corr sar el;+l3:al0bqmjh ,r+ zn1ected 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 v(8j ex++ei 9klp mv0rglass?

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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 tu2 wf1/3mp qe3+q wyury7 nt,very large diameter objective in an astronomical te 3n +p2 /3eqwymwuy1tftr,u q7lescope 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 teles3r( jvxk cb )m48k+tuvrtxz07cope. Suppose an opaque screen is placed in front of the lower hal()kcv37mx+ vj 8kbr0zttuxr 4f 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 sensit*) t+2ojb cbddqurg7-ivity throughout the visible spectrum, 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 the tco)b7rg b t+ -d2udq*jelescope 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-xmoy6/r. yv v l(mefl+r5li1 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 . 9tvo.tz3a 4f vv4//xmwisbnbe able to see the greatest detail when using a microscope?.ov x/z/sbt wa4tv3fv. 9inm4

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer fr q:m:tvv3bhf7 om

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer flo q:n(4gdc5 zrom

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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 q j2l8kn2mn )0cfp5c uzyvr8x s0q15yto 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 n d8 pckp7oo11its resolving power assuminn ko1 po8cp7d1g that all other factors remain 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 az q569b:drjag*pdo/qf9 f(w w far point of 18 cm. What lens (in diopters) will allow this gd/5wfaopj 6(bzw *9 9qqrdf: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. Whay6gcpxei 229u:h4 ukw9f8ddr z 4 qsh2t power of lens should be prescribed if the glass is to be worn 1.00 cm in front of the eye2fu 8kxdue62 zhhrsy9dq 9p :42icwg4?

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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 wh xys46v.fjjysuft3 ( .wr d*v+ose lenses have power of -0.15 D. What is thj4fs .t. 6yv+dwyfxv 3sr(uj *e person's far point 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 to correct for farsightedness(;ui 9b;4ygnie del q rt73e4z where the uncorrected near pl49yt;4 b;(z 3eruge7enqdii oint 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 q*xi1q1zv wcdtv1v 3 ;is 100 cm. She places reading glasses close to her eyes, and with them she can comfo*icq vx; 1 3w1zvdvqt1rtably 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 from hisygy6bspj)r(fcg1e8r6x: d -q eyes, if he wears glas- (pcx ge6fjgdb s:yyr8 q1r)6ses of
+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 hasui creya,lyzncp8; jb* :w4;g(o g6 s0 a focal length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused ay s4*;e( ;z a g,68 cinjulpcy0o:rgwbt 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 +l3mhxb fl9 x0focal length of 10 cm. A person has a near point of 25 cm. What is the max9lhx 3b0 fml+gnification 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 l s +gbv*:jb-fvength of 7.0 cm. What is the magnification if the image is - *b:vsvj b+gfviewed 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 cilrr-:n m/e0h;cin2 fm as a magnifying glass. What i:n/rilf0 m hn-r;cie2s the maximum possible magnification?

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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 t pp qj0m3gjx0(9h5mhcm as a magnifying glass. What is h3pgp9jh(m5m00xt j qthe 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 16.0 txejahawk./ a2p ea6m2xlg+h82.t )g cm. If you were to use any two of these lenses toa/h 2ggx8te .tx2lp+ehm k)j aa.a2w 6 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 lencctu sp*0*;s uses of focal 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 maximumtsc uu*; *0scp 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 k;z8rapw( g .:a az5ojlength of 200 cm and its eyepiece has a focar8:g;5azopa (kwj z.al 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 astron6fpce6;c*: zrqnq bh/ omical telescope with a magnification of 10. If the t e/*cbrh:qfz n6p q;c6elescope 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 2hs y,r.xps5w magnification of 10. If the telescope has a converging le.ss2pw5 y rh,xns of 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 telescope is limited r nk,zul67fo-;p r 0lwto a length of 20 cm, what is the approximate focal length of thzl 76n, 0lpuwofrk-r; e 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 object8da f;u*u4qh xrktlbf;(ppv0zq x 9((ive lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1f9 lhb urfx4a;;xzvp0 k((quqdp *8(t .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 lehe )w*: xw i1x2n3tjkingth 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 overall magnification? xx*i1nw wjhtek:)32i

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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 upyyy 53dxsqpm(;ba0 t: 7v d.focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are ss:;dyqb5udv3 payy 7mt.0px (eparated by 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 and an objenl cstixl z e7*50.0gx05y cgqctive with a focal length of 8.0 mm. What is the focal length of the eyepiece to give a totxllg *0cent5xi50 gc . 70sqyzal 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 separation of 10-u (poiur )owl06s 5mc.5 rad. If the wavelength of the light from the system ou0sc5 wm 6pr)uilo.(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 designeh2*a:eks fkux,fm-bv 7x:ij;wk goq4j.x, m-d 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 objective4:keq o.2m:j s7,--xja*i kwh ;fuxx,vmgbfk ?

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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'njc:q yk7iw wyr5l:7u 8be t*9s eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution change?k*7eqw:9i8w bc yru5: 7 tjlyn

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51#
 
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  The 2.4-m reflecting Hubble Space Telesco +;.t,s(:t r ic 676uxkjqjb:tx unjaspe has been placed into Earth orbit by the space shuttle. What angular resolu,jun bxts7s:ax j tq :;jr6(+iut 6ck.tion could this telescope achieve if the wavelength is 500 nm?

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