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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 shutter is b+no-gfr:-b z open and the film is exposed in a camera is determined -n z-r+ :ogbbfby 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 determined by6l, 9ovcx f9vb r. 7bex3(qy gp;qd-eo 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 slj8gi9 eyrzz 3 48pe-cuiding the lens forward or backward with respect y-j ez 38peziuc 98gr4to 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 fic0o94k,ao m)ap :l kutlm with a field of view that corresponds approxi mt9o, 0koau ):kcpal4mately 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 actc58z) bujako1s like a telescope to magnify 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 wider field of 6 i0jt ocnrirzre+29, view than that of the eye and through which objects appear co,t9i6rr i e z+jnr02smaller 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 hu,yr vhv8ynb)rl 3 28 okch(pz9man eye?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refractio pbzi,p*1vr u0n of light 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 clearn; zp 9b.r/g pksuxnb:x*: ,whly 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 s36m2 . oxnwr3q gj()bjbm -fkwee 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 c d.a- bzy3kh.from front to back, the person is likely to suffeh.yzac 3- dk.br from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usizd d 7smw68i7ually 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 to i -jxyy15 e/c:a:0 duct88pvebk-z0d ou,tp jback, this gives rise to a vision defect that can be cory/k :, v 0o1d-cjy8tdia- eub0 5ecup:pz8xt jrected 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 likely tod q:hr )v:vkhhe(h5) t sufferkv)5: r(thq:vedh)hh 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 correct*j cnbpy:)c wqs0yw. ,ed 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 visi 53zcheh7*qkkqvkeo.qm f3/5 ms,p- non defect that c5zk.p-s7, h me ch35eqf/ mkqqko*v3 nan be corrected 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 marc6vq rn/z*mlm;4a 0. h+qzrv gnifying 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 diammi*f/s5:mdp + pdu2g neter objective in an astronomical teleg i +5undm*:fmp2/ds pscope 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 a *vkib3*;bmamykp- o;n opaque screen is placed in front of the *-kbki;m p*om;vb3ay 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 unifo*0x5b)gz lmxc rm sensitivity throughout the visible spectrum, in which of the following cases would you be able0*lx) bcmx5z g 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 telesco vod*j heg0zvk.s:b7nf79,z:u8 nbsdpe 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 thx2;6f cmr+ m-9 kdw icoa)8fhie greatest detail when using a mmi+-xoh6;a) 9cfc8di m fwk2ricroscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer 8 xufv21b3v ocs v2* tw5y/yfgfrom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suffer faod4e8a,4 + ysmmid1vrom

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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 lb c/w6ca;hxyj5,l 8x2 qc5bw(jclw7 a microscope 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 resolving po fje6egw*u *o3wer assuming that all other facto*g6*fo e3juew rs 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 pointpm4hok 8cg7.ouwt6 u) of 18 cm. What lens (in diopters) will allow this person touht g.k6u cw8oom) 7p4 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)t actz6(qn g r59wgl g6y;yc,.0 cm away. What power of lens should be prescribed if the glass is cyz(glc;a5)6 rwg,ntt6y qg9 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 glassesl t - z;fm-y 3q/4)pbsgnv;noc whose lenses have power of -0.15 D. What is the person's far point if the /f )om3p;gv qyc-4n lz s-tn;bglasses 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 wherlsyss0f4. u ,hy0e7u pe the uncorrected near pois.4 u l,ue7s yp0fsyh0nt 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 1plsy/2(f ;hmb jmam3d8/ :ghq00 cm. She places reading glasses close to her3sy mjp m/fh ;l(2h:8d/abgmq 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 can read a newspaper hyxpcznxcs,.h7 d4b, )jtiv- ; eld 25 cm from his eyes, if he wears gjiv7p z s4t ;xhd)-xc ,cnb,.ylasses 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 perw4 82y8bmljk):ky: 9 shyn gxpson has a near point of 25 cm. What is the magnification of the lens for that person when their enyl4hp 9ywgb28k8:x m: jsyk)yes 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 person has a nel) kwkg. q3wmc*rq +h()l)xod kz7ji8ar point of 25 cm. What is the magnification of the lens forkoc) qw*hx) k7)jl8kl+3( idzmw qg.r 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 fcy(ub r bw(*cbhz a e(5pzc:47w -v8wjocal length of 7.0 cm. What is the magnification if the image is viewed b cwu*yp4:c5w7 br ((c 8jhz(b- zebwavy 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 cimu6 k.ap3yx r5 e0oue/o+)zgs/ sa.wm as a magnifying glass. What is tz3506e/rxoues kyg.opsa +.ua im) / whe 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 yju3ta c+swq jj3 :r7j+ 0vek p7s -q+/w,lbxmlens of focal length 5.0 cm as a magnifying glass. What is the magnification if the person,yqtj3 j+s+j rpmj ce/sxa+v 7 bkl:ww-qu03 7'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 ofj ju uzu+,+j,b focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnifi+ujj+bzuj, u, cation 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, 8.0 cm, and 16 c d1*l:p)otx(i d:jdstm. If you were to use any two of these lenses to build a telescope, what is the lens s os:(jix*pt) td 1d:dleparation 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 2v 55u*vwq/q +wsy yw;j00 cm and its eyepiece has a focal l/ +v5wy; yuj* vswqw5qength 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 telesc a+p8vckqhk5xg8 b(b02dh o9fope with a magnification of 10. If the telescope h0pavf8k2+ gb ch8b5( ko9x qdhas a converging 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 with33.p-q*l cn hk1;ov2u gwruma a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what -wc lhon*pv3u 3.g;ra2umq1 kis 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 5vom4qgyl aox/)07kw1ux6 a ttelescope is limited to a length of 20 cm, what is the approximate focal length of the objec7 4q/l6xw v5a k0yto1xm ug)aotive?

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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: lxe7q4n glj71gwo: rective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrainllw1gxrqg ejn4:o 7:7. 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 mmi33 azsr+ 8gedxrb1nc w31rk5 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 over+ 1ebidkga31nxzc5r rs3r8w3 all 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 lbx/jh2 ;l3 i qrz. j2lr-ug-myength of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the totaly-x2 z g2-ll3jq;/urhmri .bj 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 lengtp :x(ngx rf.a6e uzk(-h of 8.0 mm. What is :( g6unzfkx .e(xa-r pthe 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 ha .k6 7,ix heekrf4r+7 qjzna+ps an angular separation of 10-5 rad. If the wavelen re +f7 ,kqk+7hjrexi.4apz6 ngth of the light from 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 desif r twiqes/h c8/.qx zh9dc:6/gned to resolve objects 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 the diameter of the objective:q 8qeh/ hx/dcfw /6c z9it.sr?

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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 3kgh.16txzg (qn-buczhg ,3jeq d6, s.5 mm as the illumination is increased. By what factor does the minimum angle of resolution chanzbgqtucz6s k eg6-,,d( x13hg 3q.hnj ge?

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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 has beene oze8l/n. t bg z;ato7)6jj4y placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve tnze 47;a)olb8.o/6e jjtz gyif the wavelength is 500 nm?

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