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习题练习：Physics Unit25: Optical Instruments
本习题练习试卷来源于51fly国际课程 (https://51fly.win)， 为试卷打印版，您也可以在网站平台(https://autoconfig.51fly.win/)直接 访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。 访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 120，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://autoconfig.51fly.win/test120.html  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。
 作者: physics  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 openo9 (1giv5jwc fam,w3p and the film is exposed in a camera is determined b9 im op(cv3,1jfwag5wy 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 e)i 2a1(mugc ea 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 distan6axk r4n 2ymh0). vazece may be varied by sliding the lens forward or backward with respect to the camera housing. If, with sa0m)n z.6haery4xk v 2uch 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 itu : ,ilhbun; s4ch8,approximately to l :bhn u,sh84,ti uci;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 imai,c sqvbqz::nqk+(e1j )i jc )li.z:ld1n r/cges is referred 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 cz4;5:q gy ggsxovers the film with a wider field of view than that of the eye and through which objects appear s45 qz; gysxgg:maller 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 camera different from the huma2*j hp4ww* f-r1fh bsvn 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 +8-9rv kvdz ,ovl egn: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 obj6ke7r:s; zzb yects 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 objectszj9 qu.hscq0l*:hvxp. 3n38t0nka xv 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 frpeqfi(*-qt0t om front to back, the person is likely to suffe q qp(i0t*f-ter 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 chkrn*+ zj2ee,qs8lhl 4imgl7b ;n(x) orrected 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 fz e,hr8dsdjf-cb( n1jv( 7ja .rom front to back, this gives rise to a vision defectenbh rdcs-zd.(j1 j8(j, a7vf 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 (hs/ab0i euq 6cfs4g 1person is likely to sufehf(14b60 ig q us/sacfer 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 correctp27mzzo:n9.jw kl3 x hed 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 bax u4:rav,/cpn ck, this gives rise to a vision defect that can be corrected by usu,nv /:axcr4ping

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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 . td*.y)rq ft1m fcoxm) a63uqa magnifying 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 large diameter8vn+v mvjpd-x c25e)e objective in an astronomical +)- j 8vvpnvcem25exd 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 refract*nf./zd v -7 ,k6bnbr88z0beofo kvfting telescope. Suppose an opaque screen is placed in front of the lokrz vtnd k-f/6.fb8,z8bo ofenb7v* 0 wer 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 uniformb1tewfj ,norm oezjw(g2 m8*t- v7+r7 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 referred +w*-7 82bg r1tevt(ow 7ezfj jrmm,noto 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 telescoperyf-mg2c 7o j+ has a magnification $m$. 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 detail 0i,m/fbw f 5l9uls3* jbvtd3rwhen using a microsco lsd9u*fjf r33i ,0w/bl5vm btpe?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffnfu )xq2 m qg8x;4nt:der from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffeiy8o.fjcy75c 8f 0edhr 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 to the ability t -b wtwd8s l6h7fqclh(k)s m9/o

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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 dont+6bo tl emz:3cc6avqa ;0(hubled, what happens to its resolving power assumineb; c36qc+0(malavz6 ott n:hg 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 fb(w1 jl-pxo nx9/uvb :xi:u2r ar point of 18 cm. What lens (in diopters) will allow thjx9 b lv -u:xxw2rb1i /n:pou(is person 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 cm away. What fjyo/9sk q)mt8+tx5)/ n- b7rafaz sl power of lens should be prescribed if the glass is to be worn 1.00 cm in front of the ea9sa5)k+/7rj -n/f) ofbmsty lqzt8 xye?

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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 whosn*7sjmsb fb-dke) wc;z *f3*le lenses have power of -0.15 D. What is the person's far poim l)-f 3 b*n7*swefzc;sbdj* knt if the glasses are very 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 farsightedness where the uncorr/cz0 9my:ra;yx( qirmected ne;rxi/my ym9rq: z(0acar 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 reading glasses clfr j8x h8cim/y9.;zo bose to her eyes, and with them she can comfortabcro b 8x9mf8;ijyh .z/ly 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 his eyes, if h.kr zn45zxoy1i2;as nly 85fze wears glasse5nr az1z2ys kn ;ixl.4zo yf58s 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. A person has a near pizr4te o 8k;vc +e3c/noint of 25 cm. What is the magnification of the zt+coe;i 4ec nk38/vrlens 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 lef f ,)5)yflzoxubub -3ngth 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 their nearb)zbo y, u5u -x3ff)fl 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 c37:w -vrwfz zfocal length of 7.0 cm. What is the magnification if the image is wczwr z3v7 f:-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 convergingl/gbypfvhq70o,*f 7b lens of focal length 5.0 cm as a magnifying glass. What bh fp7g/ 0q7,vo*yfblis the 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 lens of focal length 5.0 cm ar*cj; u9 ktn :z1uf.dgh/ni vg3b18rws a magnifying glass. What is the magnification if the person's eye is reld nt uhgu3br vw:9j/cgnz;.1 81kri*faxed?

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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 2.9+0vefow n8vxspm5- s0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope9 ps we8+vo- vf5xn0sm, 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 focb)f.g ,clu7p huzlmgavg sksf 7 *.4m6: ro2h1al lengths 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 the46hgm,lch )gl kz7 7u.*m gru f2vaspb.s:fo 1 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 lengthc edw t8- 846-pdy(qyektqpv* of 200 cm and its eyepiece has a q*e d-d8 vy6w-epq ky tpt8c(4focal 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. I /qewtz)n cr:/lb6*6f uio) oknlt n2*f the telescope has a converging lens of for nwl:*i) l 6 qf )6nzkoe//cb*tunt2ocal 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 telescope with a magnification of 10. Ifk l3cz sli7jj.zm/h8 0 the telescope has a converging lens of focal length 50 cm, what 0 zz.3jcmjl7/8klish 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 a21 hin5gdierhsu u:+ . length ofhn.+5ig2 duhr ieu1 s: 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 length 1.4 mm and an eyepiece of foyl8u)nxb yaa.; 5aq9n+ j7y xbcal length 20 mm, adjusted for minimum eyestrain. A blood s+aaybq ny8)yu 5ba7xx. n;j9 lample 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 and an eyepiev 9fjv5+4 f 6rqlzt/gmce of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is pfrj5zm9/ f6 g4+vt vqllaced 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 lengthkwz9t3ye:k +7id9 n gkw0e +m -a1cyuk of 3.00 mm and an eyepiece of focal length 6.00 cm. If9n +7z930 kke1k-gkcymat+ ywuwdi :e the 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 18-cm barrel and an objective wvmwtt ,mtfg:/9/ij 0jdhha ; a 0y2kn6ith a focal length of 8.0 mm. What m 2;hwavm a/0td:nk,tj9g j6/fi h0ytis 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 ui83rs 7 .9zjc/ oklbmangular 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 7 s8/3.mjokr9u ilbcz 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 rest-kw :bwo -brsfjcu 5 ex4d8pv6a+*0c olve objects which are 0.010 mm apart. If the focal length of the objective is0owuk w* f-8c v:p6 +bradbc -4e5xjst 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 q h4r fmj55unyp09c2gas the ij05c gy5u 9m4r hfnq2pllumination is increased. By what 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 S -pjb**:s osr-k7izpc h a.,capace Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achi-s*-ipj .sr7hop,a :zbc a*kceve if the wavelength is 500 nm?

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