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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 anes.(*()m*cl: uknzstk hn9s yd the film is exposed in a camera is determi.(lnts9hcn (kysumk) *z :*esned 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 file cc72lota;3x -9oighm 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 distance +nfykcyb n qr;--z6b. may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained, this means thakb-q.czr-;y +bnnfy6 t

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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 n 788xlbrdtoej r2s8c(pp 5.w field of view that corresponds approximately to that of normal visi.r cd j85pns8w2lotexrp( 87b on 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 referredsr4 8saef,p,r,ll5 .0at vvr p 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 f(bzeoc )3h hgp(e0 ;po. /sgymej0 .aoilm with a wider field of view than that of the eye and3b0jsy(og p.p e ;h0o.()ceehoag/ m z through which 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 c-q u74q gr4eqlamera 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 refractio,( r jqf xkwhs kraszk:-89 :+,,yuvyzn 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 o 7s)pbi9vwku hh 6+0utsp84nis

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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 ee a yx4 xkb,v.ws9pj,,ye 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, t*l k0w *1ryli0l *4am*z-m zq kyxcd3vhe person is likely to suff d-w0lmlvqm k4y* r*acy3z1 *0*kzlixer from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usually be cyl8 va2pk;0 sjzvughvsd8 :;s xj+;+xorrected 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 to a 9 jj+9 hc8-ex +qbv1w h3ezehzvision defect that can be corrected by usingv- h+ 83z ejq9hwbe 1z9cxje+h

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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 person is likely tyf9wez9(iq.bnj 2me zkg2.//u e eo,go sfob9qe2z zwm j.e2ek/, ./igy eu9(gn uffer 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 correctec8qpi-h:+0 f+hrx b grd 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 ;c * 0+vhbnx9q/juuwyshort from front to back, this gives rise to a vision defect that cwxcqyju 9bu; +n0/v *han 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 glastmwq5/6b7o wks?

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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 largejp3*c,t :ia s /zvm-ru diameter objective in an astronomical telescop,u :/*3avt-prsijcm ze 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 f l/vcuc9k(a*0j)6rexe x,gmtgb4w 6yormed by a refracting telescope. Suppose an opaque screen is placed in front of the lower half ofu*( 6ra0/xb ,w v jkey4t9cxg mgle)c6 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 sensitivity throughout the2/v1tkrb v ;r0v2 zynt visible spectrum, in which of the following cases would you be able to best distinguish betweent/k0vrzt2 yv 2bn; rv1 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 has a magnif9k1wpxr(dc2a ication $m$. 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 gri*ukhj0oy.ud-q.zi4ie7o ) z eatest detail when using a microscope)0*oidy.iih kz4.qo- 7euu jz?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffnm pzepb-(q.v0fgxudtd 25 ,p56o3 ajer 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 f iydjnp3:c49d6ze8k lrom

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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 microscopedhooewiv7.1 k b)l:3l 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 dish is doubled, what happens to its resolving powerqej/uaa)f1h+ sv5emo /d+3, r)mz umv1cqie5 assuming that all other factors remain z ev/ hrv/1aq+ud+5oj 3)fmmsu mai,)e1c5 equnchanged? 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. 5e) voyu+l ea:s6a ti)8)rzir What lens (in diopters) will allow this person to see distant obje z+5 )y)aveo :riu6aeti8lr )scts 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-;u8 ,dap ptuky-cv8jo)h51 mzvb tb: more than 70.0 cm away. What power of lens should be prescribed if the d 1cp 5vkuop8y8t -za: ju-vt,)bbmh;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 power o6k9eo 4 2m)pwov8 7sawzh .jrvf -0.15 D. What is the person's far point if the glasses are very closz rjv ovk.w s9eahwo6m278)p4 e 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 where the uncor b0w,+5dy;kskctjov s332teqrected ne ; 05kvko2w sbytdjet,33cs+qar 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 readinyvtj/l *svbggb ,s3;x3;q ua4g glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. lggx ;t33sbqv;uy /4 a*vsb,j 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 heldv,l v6fvkqlu2 4 ml;ir0a72 zp 25 cm from his eyes, if he wears glassesv0 7lu4v2la p6,;rvkzm2 if lq 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 has a focal length of 10 cm. rqbckwgbag19)/ o/ 0oA person has a near point of 25 cm. What is the magnifcwaqo)/g / r190bbog kication 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. (kv fjsgy+i3t/ 1l ,eoA person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused attyg3e,oi(lf vj/+ 1ks 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 is the magnificaak00v:5l sgz dtion if the image is z0adg: vs0kl5viewed 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 convergi ak*u ubr mm5,zbv4c04ng lens of focal length 5.0 cm as a magnifying glass. What is the maximum possible magnificatb,umvz 4*40b5aumrc kion?

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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 y0 g)03;nfbcmzfnt; i cm as a magnifying glass. What is the magnification if the person's eye is rela n003i)m tg ffnb;z;cyxed?

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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 c.1c ;fc j3dd9 vku3 -wohmow)gm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telev.9cw f c)- 1wo god;h3kumd3jscope, 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 focal lengtdjs. +d3w uoo5hs 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 maximum magnificatio.w3d+ju5o sodn 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 l89kp(c/ jrhbsl g 9ne5ength of 200 cm and its eyepiece has a 9 gprb (shj9k/5nce l8focal 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 10. zpc)w;y.yxnoc* l8s) If the telescope has a converging lens of focal length 50 cm, what isxyc)won spz .)l *8cy; 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 magnifix9xa .rh1 (so1usak5r cation of 10. If the telescopeauakrh1sx.x( r1s5o9 has a converging lens 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 to a lenyftw:m; 9kxo) gxa-c9gth of 20 cm, what is the approximate focal length of tyg:9ocxf9m) wxt k-;ahe 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 eyw tad7)d)io8t epiece of focto )d8 )7aditwal length 20 mm, adjusted for 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 1.4 mm andx. u ;fj3hx3fc an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood.ff x3xhjc; u3 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 eye) 6e8/rs(io9e ymbqb/i k3sedpiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnification? imor)/eeqs93b8k 6/y( edibs

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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 focal lengt i wq)cb*./8gowqtw8sy dp(t;h of 8.0 mm. What is th wtqsyw*q gw.pdo;c) 8it /b(8e 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 separation of gpxk66 +hey vb2b/0ln10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest aperture (diameter) telescope that can 0e6bb+ xky62lvhn /gp 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 0.010v9kja stf3.(i3qk t9 jtd7 *ks mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is (73q 3stajkiktd9j .ft *s v9kthe 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 jk/(lg9cabk*)o necue6t 5c7 .5 mm as the illumination is increased. By what factou (j/*g oen5lc7tkbcec)6ak 9r 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 bey9sve-u5 fr8hm65oq njhj( e: en placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelenuh8r965j se( jo5enyv hqmf-: gth is 500 nm?

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