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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 0,/i ahut(st q 5hd(rais detert(hdsar5u0(h , /aqitmined 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 is deteslqh0(w)i k h;)o3fqqrmined 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 ym6pz/--r ayb be varied by sliding the lens forward or backward with respect to the camera housing. If, with /-6yzb-rpamy 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 cov dw l9 nrwl:)/w*: 0:fuy+) mzsajjnwvers the film with a field of view that corresponds approximately to that of normal vision is referred to as j:nu)yalnwsf w0r:m vd :l+/9jzw *)wa

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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 rt*vtcj ycvuz7q2 ,qq gmb -k(1s81/ vas 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 fit rytk,/j8oy ;eld of view than that of the eye and through which objects appear smaller iskt , 8/;yjoyrt 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 )+hj0zu1dxi qdifferent 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 occuroko:;w u5q ljh7snt .6 5ne3eds 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 objecyh4*d 91ft ck n(nnk,jts 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 an eye can seewlpuk+y0 -z- m 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 longf;spf a h+:bcpo;4z6e from front to back, the person is likely to suffer f p6 pb;:foc;hs f4aez+rom

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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 corrphpmn) otj4 u-8(cohf .r5 vx*ected 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, thisvz9ciybgq0 d wzv 4u 8k).9m9f gives rise to a vision d4km8fdzb9vg 9 9 quzicy)w .v0efect 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 persoy;)9h5kiyzv in is likely to suffer fr5z;ky9 yhiiv) om

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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 correctm k*h t/le 1w wo9z0q:p8-uca w3g9(:eequgsied 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 i:1j*m*m.oxpt m*juc ss too short from front to back, this gives rise to a vision defect that ca*xp:mucjm * .ojmt1s*n 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 glizgxod,2u:i;5n;6f kib qs+rcd /3zxass?

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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 largj5jtga0e wsu4d qt;;tjn/ k- -e diameter objective in an astronomical telescope t 0wuj4/;gkjd- -as5jteq ;tnis

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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 teleshh+ dvm/l,wp3pets:ku. ; . lpcope. Suppose an opaque screen is p+l /khsp .dw mth,ul:e3. vpp;laced in front of the lower half 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 sensitivity throuqwkas, d+80gbghout 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 d8s,b+wgkq a0objective 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 magnificatinyy9a:,v8pk)o9cdg ( d6 llzd on $m$. 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 6dn/;*.6rs 6y fjljtwkbwsy7i;* uiw the greatest detail when usi y6f yid;tkj7/wsj.w*w* lbns6;6iurng 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 suff6 (yq gp1+kknxer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors sufferk eq68i0q :hrl 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 tob;th 96scst .,)c/;xesty nwls hr ,7v 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 resolv*ol76dbyjd /6 n.6ld emz az2ying power assuming that all other factors remain unchanged? Its r/*a27 o6by6 mlzdzdd.l6yejn esolving 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 (in diopters) w8uo uby20 id;eill allow this person to see distant ob y; ue2u8io0dbjects 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. Whaf3u m+mrfw;3f+sq9 + s qqx(sct power of lens should be prescribed if the glass is to be worn 1.00 cm in front +x (9f+3qsu qrqwmf sm;fsc+3 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 of -0.te.1;t rzh-d*t o s;4* tscjxp15 D. What is the person's far point if the glasses are very r* sse t.ho* xdt;- pj;ztt41cclose 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 wv22h0v;b( s qvezcwzo qf)j 3i x*)wn.here the uncorrected near poin;*n ) 3jwvozsqh v (czxwf)i2q 0evb.2t 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 readingomqnkv( /ozmsl r/up;mq 9- t()4zpc) glasses close to her eyes, and with them she can comfortably readmou(ovm/)(/k t; qrpc-49 zlpsnzm) q 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 nedjxd/9m 3 mtgs.j849zhbd/3s)r rh l ewspaper held 25 cm from his eyes, if he wears glasses o)s 3ls jm9 rbm.9zdj rt3xhedgd /84/hf
+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 rti0q7bbf:f5kck95u near point of 25 cm. What is the magnification of the lenbkb 5tr0qc 5k9iu7ff: s 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 alloi. m.9dvzj vm4 m)4g1l e,a focal length of 10 cm. A person has a near point of 25 gvj1.o,e .mlv4d4)9 a mlz imlcm. What is the magnification 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 length of 7.0 c0gkgvt) ;b3f* rcjz7* u/hyw om. What is the magnification if the imaghv0)kz/y b*f*u o tw3rcj; g7ge is 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 convern t2 2 w*l: kswvi64ljvtn+xp*ging lens of focal length 5.0 cm as a magnifying glass. What is thk:svtn+pwjn 2x*vl4*2l iw t 6e 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;o ddxsr289hl; s7ivg lens of focal length 5.0 cm as a magnifying glass. What is the magnification if s9g; 28xlir7;ho vds dthe 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 lc2vajxiff 2u:8 ad,z u7bt:3 tenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any twof3v,x2dtz:uibtfj8cua: 7a 2 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 focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. I4*+2tmk jh5x db n:jh3hb 4oeef tbmk+h: xh3bj4*do4j5h 2 n eeyou were to use any two of these 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 foca/k( ql,yabp *edgt2r 9l length of 200 cm and its eyepiece has a fopd btya* g/kql92er,( cal 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 telescr(lj irlphg2 f5l;1 u1ff;zc-ope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is t 1;2pu-(gf1lfr;ci5f jl hlrz he 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 10. If t2f l41hn/jqpkhe telescope has a converging lens of focal length 50 cm, what is the resulting length of the tele/h1 fkjnp2lq4 scope?

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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 telescoku5fu :sta /*kl jk+e8pe is limited to a length of 20 cm, what is the approximate foc:jk*ut+ lk85 uk/f aseal 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 pbu .k /zp* te ,ghz,);-twtycan eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far apart hz).u t tpg,y;tp,-*ezwcbk/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 apw+71 nv5a vsp4 v/nzqn eyepiece of focal + qv1p7v vsaz n4p/5nwlength 20 mm, adjusted 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 objecjf (e)ydf+ dfugfh, )/tive with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separatfff))u,jh+edg fy(d/ ed 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 objeck w4y6 l9:pqnjtive with a focal length of 8.0wn9 6 klqj:4py mm. What is the 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 angu4m+ vb*sp qb3d-ppd:jgu9x 0plar separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest aperture (diameter) telescope that can just res3dp49uj- vmb:x0bp+ pd*pq sg olve 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 arey8e // c 1iajow1:bpfz 0.010 mm apart. If the focal /j8y f1b ez1wia:c/polength of the objective is 4.0 cm and the wavelength of 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 mm as -1 pa4aky l(v hvpvzh nt.,k43the illumination is increased. By whaapp, k3h vvkan (v.41zlh-4ytt 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 placed into x:yyxgb3;z,2eex yvp8b o( :d Earth orbit by the space shuttle. Whap beg b :v2y;:do(y8e3yxx, xzt angular resolution could this telescope achieve if the wavelength is 500 nm?

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