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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 de+rb i mw52klpl l-2yt0ll/iz8termilz/825tylm-kilb+rw 2l pl0i ned 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 determined by thgej65mlx6 /z ee

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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 be v jou( *sm48e /l 8s32omuvcon:zl .ovuaried by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained, uvsu m ev4o 3 m *l(88onjcl/s2oo:zu.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 of vie;ohhokdq t6d1 b 76h;zw that corresponds approxima1ohh od; t6d7h k6;zqbtely to that of 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 like a telescope to magnify images is refera xxy(w6r lpp10)vvv 6red 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 thxlwem-/v5 )r xe film with a wider field of view than that of the eye andm/ ex-v)w5rlx 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 g9gl2j4d 5 3ypn 5jfhpa 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 occu/j8e poh*u b bbf5hw:5rs 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 objeczkqzg8bbgknx qfil 545 *r;q ls-52v: ts 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 es)o7es /wuwup,9( d ac,)zb3c(k iteoye 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 91+zp 7ednfzmmo6cy .too long from front to back, the person is likely to suffer frome1ny7 .6docfzm z+pm9

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usually bettuoa+gpmmuq . z4)e+c ;.t pc)9f7bz 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 isgj5xr .(xkpw69p.zi s too long from front to back, this gives rise to a vision defect that can bzis9rx 5.k6w(pp. g jxe 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,-dwaouuj:/g+m l3 d+j the person is likely to suffer f /ujgl- udjw+m+:ad3orom

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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 correctv*tguspbpwb))m,4(wh 7bk c:ed 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 rise to a vehqrpj1,9 ns-m8 9s yoision nhj-,q8 mr91oesyps9defect that 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 magnify d o6ul myr6)stkw(f5.ing 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 yhmi6, 55mndc+aj o)nlarge diameter objective in an astronomical telescope id,o5n5mh n+6 cyai)mjs

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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 telescope. Suppose ac7d 3yjd8bt4gs3f.c8 rhw 7ekn opaque screen is placed in front htbd78s w k3je fccr37.84dgyof 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 sensitii pll c76(5y-zoi3gfmvity throughout the visible spectrum, in which of the following cases would you be able to bestz 7o3m(ifi5cy lg6-pl 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 has a magnificatio+ o)g )vtz txo(sk*v)vn $m$. 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 greatest det*akmb5d h9 uy)vwx ;pw9i,al3ail when usik;a9vw)5 , bpawdylm 9 *uxih3ng 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 suffek*0v8 eyjb. z- h/pr0xu5wgqc r from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors su 9k l3esbt*1psffer 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 micro s )sz:n0m re9kaa.j:cscope 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 p it.,gppvb auu hg-z:)q4f2/5ypq:ix ower assuming that all other factors remain unchanged? i/gv-ypxqzi)qu2 p4 htau5f .,b:p:gIts 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 (in9qj07orrqg *;xjcf 2;tpwgdsg ib 9*1lo ug,4 diopters) will allow this person to see dij b9u, qf*csgp ;otj; go 01rd9wlgxg27q*4ristant 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 2u/ a lp 32k2tm3fjxd(opxin9 q(tay 370.0 cm away. What power of lens should be prescril(xto2/39tkymufa 2p3p d n qx2(a3ji bed if the 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 .2n/x m 7dv*/ +oou,pvm vrhufglasses whose lenses have power of -0.15 D. What is the person's far point if the glasses are very close to thenm,oxv.2 f* //rp ohvum7 vdu+ 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 wherejpby1n ; q1u;e the uncorrected near point i ;e1qu1;yn jbps 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 readindb kzmkztm2gyu 8s0.ztz +km2 69d7c(01c nusg glasses close to her eyes, and with them she can comdn z2 1s0c2ukmm8d(gc0 . tsbym+ 7 ztkzz9k6ufortably 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 )zyn, zr+gkr ,his eyes, if he wears glassesnz,ry kzr ,g)+ 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. ats7 ae:g 3z2sv9s i3dzmo0w1 A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyiavdsse93o2m0 gz1w7 az :s3tes 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 nearu;qt z6p)g 8hi (1qkvw point of 25 cm. What is the magnification of the lens fo1k)8; w(zthu vipq6qg r 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 (jswkhlhj ile37o7 tq.:; xdr9,xm :cfocal length of 7.0 cm. What is the magnification if the image is vr7 ,cmxq3(hhj xllj7e9tw.::do isk; iewed 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 conver0j.-j,hcaygi7 9b4fmg es lj0ging lens of focal length 5.0 cm as a magnifying glass. What is the maximum i j94ale ygbf0cgs-m7.0, j jhpossible 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 cm as a magnifying glass.yj pat25mwoe rgk;g20k3 9n*tk13 qniz)b6ne What is t*0ktg3j 2ezgkkwr9 5m eb; yqo n)6tnain 2p31he 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 2.0g p0(htkx 4hugm d8ujx4a7xv3m:6(po cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnification you cou4mkx u4m(p6vgx7 (juodh8 t gaxhp0 :3ld 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:o:sxun 5ntt0ovd2.d8n z 8z zo3 x2ci.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 maxnu.nzo 223:xod 0d:zzc5t8xsvoit n8imum 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 length of 200 cm and its eyepmotqvoig0/h ,dr + 5f6oz1.s;,qwu hm iece has a focal lengthoufih+mro tqd1;.,mowz v 6qs ,5h0/ g 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. Ius 8igck 3xg7cq9nk4.f the telescope has a converncqgx94g7ikk uc3 .8 sging 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 constructsa ),9az7jd tzi an astronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting taa7zi dzj), 9length 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 :gx/o 46kkd2j n1eeos telescope is limited to a length of 20 cm, what is the approximate g /o k d2enejk46:sx1ofocal 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 objectimvp o)t,)y(bsh ,*vrpve lens of focal length 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. How ft )ysphr,(,v*op bvm )ar 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 of0w x +w,pn9pkd+vjis( focal length 1.4 mm and an eyepiece of focal lengwn+0kvw, s+px9 ji(pd th 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 objective with a focal leg dg:g(z.)h3nx/ *d1oeu rqrl ngth of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.nqgr3 .d)zegr1l*( o u :xg/hd0 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 objective with a focal length3eb k j ljf u:p8ca80-0ulzs+c of 8.0 mm. What is the focal length of thele0:ju+ f b kcjs-lu838apcz0 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 c gum ulk122r+xonstellation Orion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 502l 1+gum kurx20 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 x cpqlivhy)o(j z;q9hn72f/, designed 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 o qiyol(9nqfxzc7hp, j h );v/2f 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 ey9wy5 d-*prsj3qe - jmve 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 rr*-p yqm 5wd-vj 9jse3esolution 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 Huwxg3iqd* / e7)jln+mzbble Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength is 3m)jz*w7+g nqilex/ d500 nm?

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