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习题练习：Physics Unit25: Optical Instruments
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 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 open and the film is exposed in a camebj-r.rm*od i/ ra is detrmio dr*.-b/j 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 fil hwzc/jd;s-rt3 3ti u0m 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-film distance may be varied by sll(n e/v7g 7mq7hwbg8 biding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained h/7bql nv(8gb m77weg, 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 y3zoi k .5ul+xa field of view that corresponds approximately to that of normal vision is refer.x 5ziyu+lko3red 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 x+x.gpx9 kg1xl((njc images 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 covers the film with a wide,6x0jczz v pkf57 jgx eld15eb*hj,7sr field of view than that of the eye and through which objects appear smaller jd*ez6 7fk p1s,zcglb vjj e7,x5 x0h5is 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 human bgeapgjj5 nkl, 2d786 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 by the eye occuet371xt31 w*ztrh c itrs 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 wxk7 ddp2ri4r6f x 2ba.+y1xcjhich an eye can see 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 se(6 np6r 48aa da+rhjfrve38 eqgz4c)qe 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 to back, the person2. :e g xx zk8bg5szx2ulq.6+w4,c5va kaafhu is likely to suffer zx6 vga+kl,u x8 5ae2gzcx 4qskba.5wuf:.h 2 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 corrected wiy pugs36fc,belg.e5.wb: 1 ruth

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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 frondn0c6m ;: khvx+j*wug os5h5yt to back, this gives rise to a vision de vhh6;5*c j+: mwdoyu5g0knxsfect 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 shor m8kwyfe1a+u3w;zq 2s t from front to back, the person is likely to ss2; 1aw8fmqke3+ yw uzuffer 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 corrqa88 qbgjyg ,ypg8qg4p*:w 7uected 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 rise to a visio t1gnwsga x6 e-o9evd.: lkioi:6;1 ebuq/x4dn defect that can be co;su:xot61. e/i1lgnw9kvqi a -64gb dd: xoeerrected 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 9fw qxan); r.5ykct0w a 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 diameter objectivexy -jbp3/vgmn6j ; h*b in an astronomical telescope j;pb6 /v*-3ngxmb yjhis

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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 refracti84ngb o,o9i8vcxe lg2 ng telescope. Suppose an opaque screen is placed in front of the lower half of the o8ebg4vnxi 9oglc,8 2objective 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 througjxmug 3 ywr- g2t*+u6ahout the visible 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 og+jt- 3w2auym *g6rux bjective 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 magnific/u0qkteswu(lj04kc o8u* c g+ation $m$. 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 b2ijkovg*.v 6ola8b0greatest detail when using a micrbl0.8big vakj6vo2o* oscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suff cff rzz /73j 21shtqoqgt2u)2dgc sg3a16 0afer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffersu q4f8 fsb:0k 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 microscopi.tn m*jde8v)vk 6zt 4)ddj7xe 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 rad,:ax sppzb )-rsiu5i 0/ qjrn3ar dish is doubled, what happens to its resolving power asx,i inua:sjp0b zps 3r)5/qr -suming 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. What lens (in dioptersvqq )b8 x4(wwa) will allow this person to see diswx qqa8v)b w4(tant 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.quix3w,7hy l :0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in froy: x7,huiq wl3nt 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 power of -0.15 D. Whr39 ogslt 4bjs2yj2c f q6:s:8zagur9at is the person's far point if the glasses are very close tj2s lu9938rsy qbrcfszt 2:6:gg oj4a o 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 fa) qs(go ylqq914z(g yj.m)corrsightedness where the uncorrected near point is 75 cm?omoyq1 sl zj9yg )qgr4(c(.)q

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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 cl+wawx+mpm cwsr +2+ t+o+cw ++xtwmr2am +ps+wse to her eyes, 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 cao70ozxh2,3 *qh3 wqrux3sbkcn read a newspaper held 25 cm from his eyes, if he wears glasses o 3*7 cob3ow2 q0shxhkzurqx, 3f
+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 poilkpp* ) e 6f(vbk83 lufoa4y1pnt of 25 cm. What is the magnification of the lens fok papf yu6 )flbk lp(o483*1ver 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 length of 10 cm. A persstysz086k7u sujrfur- q: ;8 won has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at their neauzw86 trsu :u r7 kqs;f8y0js-r 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 .k jhwsdn 0 rl(-n6xg)the magnification if the image6k w -ljnn.sdh)(x0 rg is 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 converging lens of focal length 5.0 cm as a magnikg kve4ggu.aelf*lcm4( x-. v s6xb / 97a9pnffying glass. What is the maximum possible n7evl/.kmf(la9g4. gk x p 4*g asucvfb69 -xemagnification?

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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 converginc rb)l,y worm7sq*xx;1 rg bw /:oyu;*g lens of focal length 5.0 cm as a magnifying glass. What is the magnification if the )ys x;w7; b lr1:gomrxq, u*yrco/w*bperson'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 focalwwklx+8de 8plx4xq;t 4w6gq / lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use alpw4 xq4 x6x8;ewqtd lgk/w8 +ny 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 o,ts (m+ j1tgpgf focal 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 the ma pgm1tg+( ,jtsximum 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 q( +un/x9da2 a0atjmza focal length of 200 cm and its eyepiece has a focal length xaju2m0a+(z n/at 9qdof
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 :dhg:y*e;n-e;kww nwb cw11a astronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length e nkdhg-:;;b:e*1wa w wcn1w y50 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 anj7g+ emmcx df0 k45l*fea ,k+r astronomical telescope with a magnification of 10. If the telescope has a conver xme+5k4kgjf0re,*cfm7+ adl ging 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 telbw:(f)zym0v dddni *4 s2nqx6escope is limited to a length of 20 cm, what is the approximate focal length 6d (w0xbs)qvd ndyfz i:2*n m4of 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 oby;ul xf3 *vbt5 of*cd6jective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1*o *;f6b ldtyu5vc3x f.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 leca,;2kgfcz; vngth 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 objective. What is the overall magnific zcck ,v2a;fg;ation?

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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 3wpoemz(6 l(wuu/ z r)62tv ,fk.00 mm and an eyepiece tuz/( r2wempu6lf,z6) w ko(vof focal length 6.00 cm. 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 barr .+ 2wa7:p).adq.nnandklgr9stl l, lel and an objective with a focal length of 8.0 mm. Wwdatnrn.l .+l n: lpqkg.,9s7al2a ) dhat 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 the constellatioj-ts :0ne2 yzsww7bh41m dwz5n Orion has an angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest apnmwt5wz 2zse -byds10j w7 h4:erture (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 4y/2pr zp u,y:p6nuj,1hmm)l x1an4 aj;rk akare 0.010 mm apart. If the focal length of the objective is 4.0 cm and t)krm2az /ppnj:auxn ,lp 14, mrjy61 ak;uhy4he 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 d 2tj//1ocm94hs+hs(rn ytz 37 g rrtftiameter of 3.5 mm to 1.5 mm as the illo t+3 hr/g 47f ys2 hmz(trr1tcs9j/tnumination 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 Huujzr/is t 5-l;bble Space Telescope has been placed into Earth orbit by the spac;r sz/i-j5 tule shuttle. What angular resolution could this telescope achieve if the wavelength is 500 nm?

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