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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 is open and the film is exposed in auapws;e * lx3xn 5l.q. *n:oma camera is de op.l; 3xs:wq nml.a e*u5n*axtermined 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 inlty8)8aa(bcb; r-wq f 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 ,ep 6/1zu,d1.ftkutn/ttj9o i(j.hi 7uv p jd-film distance may be varied by sliding the lens forward or backward with respect to the camera housing...j/t9d7t zfnkd,11 johip6(/iupujt et u ,v 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 corresp x(wis wz5cuer72- :ghonds approxiz7i2uegrx 5s:ch- (w wmately 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 refe)- qzm)pjf)q trred 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 widerh gosar.1n(2 w field of view than that of the eye and through g.ho aw(1r2ns 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 followingn;+ w;jtpi5it 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 ligv u,1w:f;/ mdbxd()ug: vvmxxht 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 s(j(0o*vc3b 0y rfnj zzee 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 an eye can see objects clearlaa7u v)nl ,;jndkv) s83w2uk hy 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 k 9lz61gg c wnzf*zu92person is likely to sufzcul g *99zwn1kgzf62fer 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 bk 4/f jdgjy7yf ow4tja r,7v7e7sy-)se 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 toosf3z sab3w .3d uwdv5sqvw df ;91xg)t 15*gij long from front to back, this gives rise to a vision defect that can be gs).z33fd*fd15b dg5 3 a9ut1xws sivj qw; vwcorrected 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 person is mf2niwkn d*j,dt/ +1jlikely to suffer f1imnd, dt+j 2jw/n *kfrom

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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 correhpcia;dk 7f aa0ep; c -rt+8u*nbq 0u*cted 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 /u-* mwrew5lj 0vun 8vgives rise to a vision defect that can be corrected byw lwn* 05jv-r/mveu8u 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 mmxmcjgy8fu3,t xp3w :jq5*) cagnifying 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 verr:gc82 jz;fdw :gi/ fuy large diameter objective in an astronomicalf d/gf:cji g2 ruw:;8z 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 sc0jkp :5ryf14 a xjh l3rpxb-)freen is placed in front ofb3 40f5aprj-h:xrpf)y j1 k lx 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 h)x6d :wwe gj/ gt2zc0fx23qx, hrpkb /as uniform sensitivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The lens refepb2dj2e/x,/:h3xc wzxk wr qf6t0) ggrred 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 magnif1oi 3z.b:8 ,, lasv2bf vk.nra(oz1qs )brkzcication $m$. 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 r qmjr;my 06d8to be able to see the greatest detail when using 8qm 6m rdyj0r;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 fuzm *4pol*- yxrom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors sufq)5u g (jma4l;j gik*lfer 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 mik5la0 ma f8.zicroscope 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 3:xz wv(0gw,r ci my/l3i. vuxresolving power assuz(gwm lvxxu,/y cvr. ii30w3:ming 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 a far point of 18 cm. W2fcs 8 0tybc+rhat lens (in diopters) will allow this perstys2 c0rf8 +cbon 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 cmjt 8hu1gap +*ethgs,lh/t/ az t2 3/f9 0vobdi away. What power of lens shtzt, /phg3 fje9 0ougt*s/hhd/t v1alb82+ aiould be prescribed 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 person2v wm pezc(7k5 8yat;3-ohbcy6j7dnp wears glasses whose lenses have power of -0.15 D. What is the person's far point if the glasses are very close ey (ydbw7hm257-v;no6c ja 8k ctzpp3 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 wher r fkvru naez7n0)q n7 -.22ovxkp8vg6e the uncorrected near p6nekvrz 8)u p n2g ov- kf7x0r.a2qn7voint 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 reading glasse9 kkf29fzn2cs,/p)1f ws uupus close to her eyes, and with them she can comfortably reak),fu2sz 9sn wp 2upucf/fk91d 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 ,);odbfm9dmpnewspaper held 25 cm from his eyes, if he wears gof)d9d;pb mm ,lasses 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 ha p6v3ilbso 6* eqiha0itz1d3 6s 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 at infine d0s*ii6p h6 3i 61tabovlzq3ity?

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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 i2ycxhle r:+e,(a ga/10 cm. A person has a near point of 25 cm. What is the magnification of the lens lxea/ +2hrc(iay g,:efor 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)ybl* ,(qy nin cm. What is the magnification if the image is vieweyn* i)(,qn blyd 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 cm as a nmd oys(maau: a e/286;daq,7eybdib/yfa8 /magnifying glass. What is the m2/sdqa,;ea i 8uyf6nombe( d8:a ba a/d7y ym/aximum 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 convefjbuf /)qzh 1.v -bx:prging lens of focal length 5.0 cm as a magnifying glass. What is the magnifqp) zf jfhu/bb1x:-.vication 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,c-ong*jh 9qw4gca ycd 0q:1 b3 and 16.0 cm. If you were to use anyq9nwb od30 1 4 c:gqhg*c-aycj 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 cbj1i 8q pub 2;w3ub;mfocal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were t1puu b;3; c8 2bbmqwjio 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 focal length of 200 cm and itip8c2 k yq( * ch34q2je.yvhvls eyepiece has a focay2h(82vck*yq3l hqei jp v4c. l 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 bc57d7 rfe2ija magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the foci75e2jb rdf 7cal 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 magq qlos23 q vq.f) ga7+b8h;behnification of 10. If the telescope has a convergi v8.7h) qf;2hbl+aq3qb qeogsng 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 len- gyoj (abte-4gth of 20 cm, what is the approximate t j- b4ayeo-g(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 length 1.4 mm and an eyepiece i 8rys hfare haj6h51of)9*03xf.pehcuqc14of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 5j9ahf4f a r6e.ce*3 fh1srx c0h)hiyu18qo p1.5 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 objectivt38 +hl+ syxrh:4npmle lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adj mx+h:rs4lth8 nl3y+ pusted 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 objective2 gvurqj g0 i0vlym/s :k5g h)s(3-8sziv5ako with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If theg5q:/s(3 ij)5 vh2- vvszsm0l kak0ygr g8iou two 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 18ed4u. r ni0-bkap 00pgak-0 hy-cm barrel and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to giv04 r-kgkdi0auhe-. 0pabpyn 0 e 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 a5fxv d*rsy k* h30+4g1qd,jm qc pra:hngular separation of 10-5 rad. If the wavelength of the light ff* dr5gsqy dhcp3h +kvqr04j* x 1ma:,rom the system 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 designed to resol 4zy o)6n,hacqve objects which are 0.010 mm apart. If the foc6aqhc zn,yo 4)al length 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 cjdfk kcwh p28pyi*h 8*905.acz/qkeof 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle o5ic8e2k0 k*c.acpyfp* qj8w9 kd/ hzh f 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 Telescon3.aw2ijzzz*vxx)c bevc; +)pe has been placed into Earth orbit by the space shuttle. What angular resolution could this telev)n)zz. abc*ez; 3 xvw2jixc +scope achieve if the wavelength is 500 nm?

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