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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 sek4 4i txzd(sazk2 2zh-s 5/pwhutter is open and the film is exposed in a camera is determined by kz2eiw s25 4z sp4zk/t-xa(dhthe

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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 cp. onil)v46)mudwnp1amera 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 distance may be varied bfg388djeo od* y sliding the lens forward or backward with respect to the camera housing. I f8d*d3e o8jgof, 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 cibmpu k 3a.9bf8l/ q9govers the film with a field of view that corresponds approximately to that of normal vision ik g 8i.9bmfla/ p93qbus 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 8d;nqkg tutr9+:mk,t 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 field of view than that of 4oetlfmkg8hi9((xun i)s w81 the eye and through which1xh )9mge8k(nli (8 ut wosi4f 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 a camera differrotdew t *qe:+l1q)h,ent 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 m c2wnm *ei:q)n7k w8tjv3zp0by 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 seexjdr- 6/sbriy2u9c1 s t9b 2kj 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 clearly6+ rhlng0yb/ 3uqkx/rjb -7nw 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 person is likely to sh vucr 60a1wb.uffer fr6 av.rhucw b10om

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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 correctedc 9j vwi/qhx8w;8sh2 w 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 back, this gives rise to a vis d38dk. u x 7w (27v3yu7qpqkpvoszqp0ion defect that can bu 7p.dw7 0q 8kvx(2up s3kq vy3zq7dope 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 sh67(-zrkj6 l iqk *km9zcg;2ofhgw 0crort from front to back, the person is likely to suffer from0 - jcw*92 zgkz; roh6ckrkq7(lfgmi 6

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usual +qzr1 cq qv,4npr+vs)ly be corrected 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 frolhu z bhhfj:8pjfhwk; * :0y,0m front to back, this gives rise to a vision defect that can be cor; z:0uf hh8yk *0bhl,j whfj:prected 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 glass.* w2ns, /)lke4zl3a zyvvfuy?

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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 i9db2 d)us( /ktyok )xvery large diameter objective in an astronomical t) 92(y)xdokk/ub itdselescope 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) 88hasd mb4gi an opaque screen is placed in front of the lower half of the objective lens. What effect will da8im )sbh4g 8this 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 vtz / 9gzmyu(:fisible spectrum, in which of the following cases would youmzty:z(fgu 9/ be able to best 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 vv3o-c *4.vjdxc ok:ca 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 greatestalmvf17t)htb /2xw)nhx- h-pl qwp9. detail when using a -hhxqt9v l.at/pbw-2hm)w )1f x l pn7microscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suff7rtx0vg 11q1b h,o*ymtct yz1er 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 fro5ut+1g -ffvkmm

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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 ab+swku i5f5v .nility 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,s:3 ao spj791 nfxsx5tzae;ei7e1ah+b3w0f u what happens to its resolving power assuming that all othejb0af71ohip 5u:e ; fwxsnaea3z137se+ xts9r 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 haowc:v5 )yj t l9ezvy/.s a far point of 18 cm. What lens (in diopters) will allow this person to see distant y/zycvj .l9twe5) v:o 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 cleat203 vw;yf; (yc2hg;b f xemdjrly objects more than 70.0 cm away. What power of lens should be prescribed if the glas20dwjbgf;yvfcyetx m 23(;h;s 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 powoy*6(jl sfp (:c1rjlier of -0.15 D. What is the person's far point if the gjlcro:i j*1s(6(f ylplasses 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 s l6xd; sdvh84ax1kc7 ovrl bk(7r6 m6correct for farsightedness where the uncorrected near point isblsx6m x 4d6ak67o v1hkdv7 ;8rs(r lc 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 glyu 5 vd+ ((oi,katieo8a)w.b rasses close to her eyr.k (a)(,ituba eoydo5vi 8w+es, 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 caqxrjev p4jmrq 15 .c/ z98sd,qn read a newspaper held 25 cm from his eyes, if he wears glasp58 ,srqv1j/ ed9z cq4m .rqjxses 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 fty m( mg yvm+k)7j-y4 v1bhq*wocal length of 10 cm. A person has a near point of 25 cm. What is the magnificatwmy gb+4ykj7q t-yvv* 1m )m(hion 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 a0emub4dmpmf0 (r18h8jp t m9g 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 eb (m8e90mp tm1p jr8fmu4gd0hyes 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 cm. What is the magnification ife;q(4tw jd- fq c;m1 fye4)kgj the image is viewed by a relw c f)d-ym; 4(q1 kjqg4ete;jfaxed 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 magnif(, 1 a.y scfqby7ro*lyying glass. Whac ,sy7roy(l. 1b* qyfat is 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 as a magnifying+7c- jha.wxaq:(3n rbo 5b imn glass. What is the magnification if the person'7+axwb:o( ia3nhmc .-jbq r 5ns 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 x-*qps; 9qpmblengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two ms;p qp*bxq-9of 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 gxi3 hcj -j28sfocal 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 sjxh - g8j23cifor 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 agwfri 8+bg g :jy*-7zz, ur(yixhj63200 cm and its eyepiece has a focal ghgu +j * w:(i6-zrrfyjiyzxb 783,aglength 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(0)m eey*vg l8h* mt/dx5wlk f astronomical telescope with a magnification of 10. If the telescope has a co0l8hy*(xkmf em/lgt5v *d e )wnverging 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 constructs an astronomical telescope with a magnificationajgjhws/ap 6*7qf z7+/en -hp of 10. If the telescope has a 7-z7*ep j/ /+p n6f shaqwjhagconverging 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 teles 1exaq -w*2tm kz(qwt0cope is limited to a length of 20 cm, what is the approximate focal length xwm1kea q2t0(t- wq*zof 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 obj *8vzsxiut1(lppf)n : ective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum xfztv8:)upli np *1 (seyestrain. A 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 mm and an eyepi (nc6:/g2r m z pahu7c/o0au z0oel+fgece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. What is th/:r7(zgm6 0uu o+zo n /clchgaefp02ae 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 3pddq12whdg w(06 djw7eu1x) b.00 mm and an eyepiece of focal length 6.00 c1p02w 6g1dq d7( whuxjbedd w)m. If 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 obj4xiwvjdx+ihs32*6 m(k78mje xf tyg+ective with a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total m+f74j3 s8i t* m mkv+i x(ejxwdyxg6h2agnification 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 2axd r97mkbakh8 kwlm9)e.;i has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, whk8 ;h.rew9i klab2 xa7 )m9mkdat 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 r,v,onfz5vkyeal8iy:1/x*+ r7 gd cs 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 thega,cy ki8 yl x/fod 7esz :*r+51vr,vn 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.u*ng-2ig xn7;q.ezkm5 mm as the illumination is increased. By what xkng7z2eg q;-nmiu *.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 Space Telescope c o9*xth6jeu,has been placed into Earth orbit by the space shuttle. What angular resolution could this etjhuo ,9*6c xtelescope achieve if the wavelength is 500 nm?

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