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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 shutteew p;:n p6auc6cbxn+;r is open and the film is exposed in a camera is deta b6u+cep w:6pcn;xn;ermined 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 deqd/l9a: vag 9wchiuw /8uo9b 1termined 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 mayvw;n kh jcu7e 6jk96)d be varied by sliding the lens forward or backward with resp7nc 9h6dwk )vjeukj;6 ect 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 2uh6z)qto9 joi(odqdi n1uc fj(/5x9 of view that corresponds approximately to that of normal vision is referred to h junx61 tii59c /29dqou(q zo()dj ofas 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 a iwzlatvp8q4 + .e5d87zd)pg 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 covers the film with a wider fielm emwngt. r3jm r2 (/l)byb/(nd of view than that of the eye and through whitb/g) lmjye. rrbnnmm2w/(3(ch 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 cpe5iy 1 bwyuf s9bx6c46yy2 3ways 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 lighto,xfmuk,w1o6f:f . an 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 objects clxsh-q0i x+ b9f2u fz-mearly 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 ankbw) ai(-dj2lx r,)r u 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 tr1pjl0a 9 dxp1oo long from front to back, the person is likely to sufdxpr9j101 l apfer from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usuallyxh5; y.onoy5s pc1+j e be 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 too long from front toyk+4vczf:rb0 m h r:x7 back, this gives rise to a vision defect that can be corrected by usin:h 4k+vyzrf:m c bx70rg

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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 to k,+g9hnb2ltpc0 pve 5o short from front to back, the person is likely to suffer froe vbp,l2cghn 0k59pt+ m

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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 corre1k w0smf1 b8g;siphs3 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 gives rpky:i5 gr40dc ise to a vision defect that can be corrp c gdr05i:k4yected 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 glazbc ,cw,ols+678f /0v qs-kozmstz3jss?

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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 c*3n5wff q6goavq.; t j1wg*bvery large diameter objective in an astronomical telefw5q aqov3;n.bg cjwg* 6 f1*tscope 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 refrap/s6,a yr-f +u nqd0zscting telescope. Suppose an opaque screen is placed in front o /+qyzpd60 ,sarnf-u sf 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 sensit k5)zhe60 tw ke2cgu)uivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The leng)ueu26ek) ckt50zwhs 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 mau39v idu xb88lk)/ trpv9k5 zignification $m$. 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 deb+ciywxb nxljf 629qq(9/z0xtail when using a micrjxbf l n+/qwcz0xi9q(6 yb9x2oscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffttzlwt gg( ryjyi8j4 d+ uj*06,p8 6qfer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer frolkt1v1rvhi tew)r 968m

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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 tmg huyu b2p-2a )m,ax72u ;oqco

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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 double03s:ng43 d m4fjjwgox d, what happens to its resolving power assuming that all other factors remain unchanged? Its r ofw3jd:30j4nxsg4m g 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 18ceg;e(r y(4chq8)q i*ped cg / cm. What lens (in diopters) will allow this person to see distant objects clea8q;)/ h4(r*ye ec i cgdceq(gprly?

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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 awd8 hqa jmlt3k 2*at),t5.mi.jslao1v ay. What power of lens shou,5tq d *1lj8 k. js.v)o2lthm3atmaiald 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 person wears glasses whose lenses have 7g (1htuta(tb:o,jeb power of -0.15 D. What is the person's far point if the glasses are very close to the (buhj1otb( tat7g e,: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 8ol c b0-: gh:rp7ut)lse)x agfarsightedness where the uncorrected near point is 75 cm?o0lc:bp-l auxg7 hret):s8 g)

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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 placesdc zzwh/g7 vi19/- ei4fvmhh7 reading glasses close to her eyesvd7mihc4-f97g1w vhh z e/i /z, and with them she can comfortably 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 he9v*ci g9kprp)a w0l . s:jykv; wears glasses ok;. cpv vgjp* i9s0ryl:ak)w9f
+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. A7-lz0 t+ m31lbf r,mab hwjrj4 person has a near point of 25 cm. What is t71llj b rajm+m,zt4-3 wr bh0fhe magnification of the lens 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 lengt q v(j9;ts1vsmj) pe,kh 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 tjtpsq 1,;jv(m 9ev sk)heir 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 lengt+hcym:yl8x86um0b , , g pv5jk mrjae5h of 7.0 cm. What is the magnification if the image is viewed bm5 ,kjy hy u8lxrm v6m0b+c,p85eg:ajy 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-zf) jlm ob gm)n.r*v4* 3smwm 5.0 cm as a magnifying glass. What is the*nf l4 zmmosvmw3* m)jrgb).- 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 as a mao+q *c9v p/h z rv;95jicawf+fgnifying glass. What is the magnification if tcv/i9;op+rfjzhqfw+v59 c *ahe 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)()wu lngqy q4.0 cm, 8.0 cm, and 16.0 cm. If you were tguw4n)y)q(ql o 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,xwf*er ro *;dopw-.ga;f, fa0 8.0 cm, and 16 cm. If you were to use any two oa gr0o;xor*- *ww . e;d,fapfff 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*w 2eq 7j2mm c4 oa rtmpd16x;b;utx0q has a focal length of 200 cm and its eyepiece has a focal leng04em;xbtwo7jma2up*2mtq6 c 1 d; xrqth 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 telef+an6 sg+yuz5 scope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length oysu+5 gf6+zn af 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.xs7tac 78r 06p vvo9hb If the telescope has a converging lens of focal length 50 cm, what is the resulting v6s 7xh7ta0rbo pv 8c9length 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 txwt dwlo4 kj: ,7/o+ws ,yqwx6o a length of +yswqx wk ow,w:/x,lot64d7j20 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 eyepiecehpa,w jsls3..0 agi j) of focal length 20 mm, adjusted for minimum eyestrain. gs 30 s,a ahl.pj)w.jiA blood sample 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 mk/:l-sdd1.p l;q elakm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A bloodadel. /l:lspk-k;d1q 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 m,j ay1h p)4ty2mq nhr1m and an eyepiece of focal length 6.00 cm. If the two lense4jmpq1,h ah2rn1) ty ys 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 with a focal mlscmcl fehly3o6fi7h +43: 7length of 8.0 mm. What is the focal length of the eyepiece to give a total magnification of 240 6ml:7m7fces+hclo 3 yfi3lh4?

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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 angular szh8 r+ .maeoh7eparation 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 resolve the two starmzoh7he8 r+ a.s?

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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 apmi,d1e/q .s g/ljs bi1art. If the focal length of the objective is 4.0 cm and the wavelength gbqls,./mes/j 1d1 iiof light used is 550 nm, what is the diameter of the objective?

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  The pupil of a person's eye changes from a diameter of 3.5 mm* p d) k4grxp 9-mxi8k4gx0did to 1.5 mm as the illumination is increased. By whai mgr8x- p 9*gkkd04x)pidx4 dt factor does the minimum angle of resolution change?

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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 Earth orbi 45zp,01hrr0ay ioimh t by the space shuttle. What angularihrp1 00oz5rym 4ha,i resolution could this telescope achieve if the wavelength is 500 nm?

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