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习题练习：Physics Unit25: Optical Instruments
本习题练习来源于51fly国际课程 (https://51fly.win)，是在线习题练习的打印版，您也可以访问本平台网站(https://51fly.win/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 120 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://51fly.win/test120.html
 作者: physics  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 isf6g3w m)m*j1t fbyfkj 0,p );qjs-thv open and the film is exposed in a camera is determined by tp1s-jfy)h3m)kjfv ;6bt qjw * gt,f0mhe

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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 nphi9a;oe.e8reaching 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-f o6bnnr*cc609vfkm5 film distance may be varied by sliding the lens forward or backn m9rovc*0nf6f5 ck b6ward with respect 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 with a field of view that corresponds app+2j ebrnwx o*27anc2:iwj: sxroximately to th xr+:*bj a22ewji7n:2swn coxat 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 referred pag, snj1tz 8o691s ttto 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 co3/)irsm36zj yd(x vbqvers the film with a wider field of view than that of the eye and through which objects appear sm3m3)/ix q dbz6(rsyjv aller 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 m)m(td +gfpc*ways 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 light h.kkp.0e(z( j1r :tuu ppx:b xby 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 s05k0wek14sm.vzm v rg/f wzt)ee 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 abm v+a(w zcy9:t which an 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 .j0*djsk56o cyldii2 0:k/ 7xjqn dt yto back, the person is likely to suffer fr /jdiyqdjc.0ky2onl t sj:x 6 70*5dikom

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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 corrected onqgj-wvn5*e+.h3bw 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 b*6cw*m bk *w*sheg:tm ack, this gives rise to a vision defect that can be corrected by ugwb*khs**m6 *t cme w:sing

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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 m*o fu5;mxy p*.fm(f:,nqp ehis likely to suffuef*,:p fyqmhn 5opx(m*. f;m er 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 corrected 3v2:pwdxru *gwith

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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 shortv:1mv+m , h0 dhbdydk2 from front to back, this gives rise to a vision defect that can be corrd h ,m1v0+ddymkvhb :2ected 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 glas2v2s1ba3ayx djs0z ;zs?

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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 vhsk 1;7.wr hc.z(po3ppmz ru7 ery large diameter objective in an astronomical rhm(.z17 h.cswpo3 rpk7u;pz telescope 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 telescope. Suppose an opaque scree ldt8bgmc:7g7-sm(u29wa ;dklaaj7gj cca59n is placed in front of the lower ha87(ma: bgaa-kg s2lcw7mu9g5tc d7 9dcaj ;jllf 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 throughout the vn x n+k 0 6wb.u2czt1zvgi(qgj i2)jc/g e8ke+isible 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 objeege16nc kizgj8/ 2q )0n.zkvi2jt bc g +u+w(xctive 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 2nmia /;j8gb* jc6efgn $m$. 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 pt4acj8l +xc v. 71wwdto be able to see the greatest detail when pcjd1 4vt8 c.a7lwx+ wusing 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 suffer fromnme f s ;tkty r72e8k3--c8opm

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer frd ,y 1)tmzy0twd):k8il 1xru6ko (t arom

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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 to the abhe6pdln3 /zfjc (pa 77ility 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 hapmbh qev / igva/r1 z-i08a-r(zpens to its resolving power assuming that all other factors remain unchanged? Its reso/ -v1 g-z/0 iaz(eqr mr8aihbvlving 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 diopt/ 0emo /c;sahxksg5 r,ers) will allow this person to see distant objects clear r;xsckgh0e/ams5,/o ly?

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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 c428wnup me,bmore than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 2wbpm,84cen u1.00 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 wearv)t5ox yf.hmg3n1rp- s glasses whose lenses have power of -0.15 D. What is the person's far point if the glasses are veg y1r5 .xomf3hp)nv t-ry 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 farsia-3-o ymt.(v bbck1f yghtedness where the uncorrected near point is 75 cmm ak3-f-by.o 1yctb (v?

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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 q96 /w sdu 8qzzfgnk f)v;m-8w100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm.8- fq dv6/ 9g8ns) wqwzuz;mkf 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 md-n7w bb ,p6tnnx3.gcm from his eyes, if he wears glassxm 73g np,bnbn -.d6twes 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 e9fat16 avpa *a focal length of 10 cm. A person has a near point of 25 cm. What is the magnification of the laea96v1*fpa tens 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 lengtocy3*k qu/ rvi6vu5w 9h 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 aruuv9v y6/*w oqkri 5c3e 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 cm. What is the magn4 gr n99)gbf +ah8d uqhtq)zi(ification if the image is viewed by a relaxz (+iqh)n89h 9guf db4aqtgr )ed 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 cm as5bndc-uz/obk. vi+q 5 a magnifying glass. What is the maximum possi.z5-couq5 kdnv i/bb+ble 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 mag+.d7s4b sczts wq+o fry 1wq,.nifying glass. Whats d.q++zs wsw.cbr t7,4yfqo 1 is the 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,hhzfs1-6yu;oa9c ) allc t36k and 16.0 cm. ac) ash1yl3z9k-utolfc6;h 6 If you were to use any two 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 czg x+d07gato, m. If you were to use any two of these lenses to build a telescope, whatt a+g7go0 dz,x 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 focal length of 200 cm and its eye8tcj a ) 38u+weqq3w+ybt6niw piece has a focal lenw8wj+i 3c q8q 3wbn6tyeu+ at)gth 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 magnificationvipsf3193x z xqgx/m: of 10. If the telescope has a converging lens of focmg piq1x:3v/3s fzx x9al 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 tei1pkb jn.wvo2.jyqn2; .-ustlescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the t. 2js;vt. yobup.1jinnw-2 kqelescope?

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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 length oajipa)*f6n c*nw7h ol-8,w+ ,evgpfeflah)fe wc*npi87,,a*gfve +wn-6o jp 20 cm, what 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 lengp b2i6)vjya2paotpyw w u,-:(th 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 obpp,tya 2p2wj6iavw -) y:uo(bjective. 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 f0 m0cc1 zc/ a-yzfx:svocal length 1.4 mm and an eyepiece of focal length 20 mm, ads0vz10 ccm-axf:z/ycjusted 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 .b(gc5j znup* eyepiece of focal length 6.00 cm. If the twopzb g5jnu .*(c lenses are separated 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 ag, *,f/ooyj3u4qeae:+o- ( ukss eehand an objective with a focal length of 8.0 mme( h3o ags:seqy*+ ,j-,eook 4afeu/u. 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 mj *tx rkui cu d80)mdt82;aju6n*4hbthe constellation Orion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nmk6h jdr8mx auctd0bt4*j2;un *)u 8im , 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 designed to resolve objects which are 0.010 mm apart.bs; joyvm5h ;(,er* )v)xmg,xrc h.hu If the focal length of the objective is 4.0 cm and the wavelengtvcxy;;m5gvs *hhh ubx,( )oj,r m)re .h 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 t :- xhovs gi;m8oo)-dxo 1.5 mm as the illumination is increased. By what factor does the minimum angle of resoloo;-x: og mh8)sxd iv-ution 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 Hubf8 : -2vee*;viuqseqcn:jq; lble Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolutionj8u:s-e*2 eq;cqvei :flvqn ; could this telescope achieve if the wavelength is 500 nm?

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