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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: 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 tg;b0ape,p2l+3 ah pkfo+ck6o)e cx9 r he film is exposed in a camera is det ka0pgx2c ep;eka)p , 6ofhb3++rcl 9oermined 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 camer:5wl vt1 g2b7hph ivr-a 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 ;r bd l,cwoyvxzf j/3+c0;6bydistance may be varied by sliding the lens fy3f b+j6 wcdz;cv o,;/x0bylrorward or backward with respect 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 fielq4):rk(f qb qpd of view that corresponds approximately(q4 rqfqk)b p: 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 acts like a telescope to magnify images is referred toczkd53y 5mdx4,7o.,mx oaekf 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 toi:km q ys( -0ptx*5pqhe eye and through which objects appear smaller is referred to as:kpt(p y-mxoq 0isq*5 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 diffew3 eg,k.t 3so t9utqq8rent 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 by the eye occurldv,zm(qk *w .c:ry u8s 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 object 8cua d4d*xoq0s 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 objhgz0xda sewa4hu6:+6 ects 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 bah 4ud5cbf.g:a+p (zgx ck, the person is likely to suffedhg : 5fgz4.abcu+(xpr from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usw9z td: wd8wnx71evp2ually 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 back, this gives rise to a vision os za(mdnr63:ebw4 2x defectramzbd(es: 6xnw42o3 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, twm5ssvzt n /7 6ih gys,j7kn;)c w)c4khe person is likely to suffermn7hsg,/6k)knsijw7)tz54 c y v; scw 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 q-hm; -2dhm o: ld24id mnw8nzbe 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 is4bf1wio cp *699 tvxhs too short from front to back, this gives rise to a vision defectfphx4*1wbt i9ov6s9c that can 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 magnifying glass?na5wkk, v:176flohhv

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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 larg0e:7*ni)c;lv vjgq myyw+ -t ce diameter objective in an astronomical tgyct+7y; j) wl*m-qv niev:0 celescope 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 forvk0r yg:- 7uc.:yxn. txbt ka4med by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will thi u4x0yx -.:rgn7ty.:kcak vtbs 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 used2ss+e.pqdyr; has uniform sensitivity throughout the visible spectrum, in which of the folsy. q2+rd; pselowing cases would you 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 a magnificato1 *+ccsg: y3ot8qqdagqf,si5 5d t5q ion $m$. 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 detax/dk x f5qmqd67;+dh zil when using a microscd6kdm5+ qzx7 xdqf;/h ope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffxcm)k u9ry;:u.a r p:rer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suvcy;qfl 0 1 1hsjwe:u/ffer 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 slv d1755 veei qn.p)vability 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, wd ,r1/s axpd:i ,+xdjmhat happens to its resolving power assuming that all other factors remain u/ixsr +, pdd:d1am, xjnchanged? 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 diopters) will.9 wryptj)v,vw(7 mx r allor( j y7,)vrvx.t9mwpw w this 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 objecdi dzu yl1u 32ubu0/ccm2n/u 8ts more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in front of the ei yz8ducul/ cm102bn3uu/d u 2ye?

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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. m8w u dfdge2 (41u4w)y z)*oo kzhu)egWhat is the person's far point if the glasuhzud42 u o e*4 gwe)o1g)d)fw8z ymk(ses 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 correct7 zahy++7pg )6ms, q *ctexaay for farsightedness where the uncorrected near point is 75 c)*6+ s7acy +e7gtzyxa,haqm pm?

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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 a*c615 qx gaks4n/g ;rj.nydt100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspapy1;n j ta4s5 6qrg .kcad*nxg/er 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 newspaxs-8bm 55 cm1mnh2rp mper held 25 cm from his eyes, if he wears glasses of hc bp5-5mnmmm1 r2sx8
+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 cmcu7yzo. t 7,dc. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focutyu o,dcz7c7. sed 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:yp) gd4 ttkq*. A person has a near point of 25 cm. What is the magnification of the lens for that person when thegyqd t*t4p) :kir 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 focal jo6fv)* fkn0 joj-mok.gl -7vlength of 7.0 cm. What is the magnification if the image is v.v) g-- o oojf0n 7kljjvkf6m*iewed 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 c mb).w;pkry9 hm as a magnifying glass. What is the maximumhb. ;ym) pw9kr 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 magu1bwwbl75mc tz.wb5vg7ni7g8p*, d unifying glass. Whatwpbm cubw5 d717g g nt.b7*wlu ,85viz is the magnification if the 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 length3 iu)xlra; gk,1ubk: ts 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lensex :31ukb,tai;lr kug)s 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, 8.0 cep6,+hyvvf13v+pz o : yptj,i m, and 16 cm. If you were to use any two o+:, 1pvyh tjofv +z3epy ,iv6pf 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 has a focal length of 200 cm and its eyepiece hamy6iw)o0 vj/is a focal length m0/)6i wy joivof
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. I22p s2;wgwds df the telescope has a converging lens of focal l22w 2sgdwsp; dength 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 offteef( r,.1 vx 10. If the telescope has a converging lens of foc xe,ef1tf vr(.al 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 d8yjmh5x cza,*dj + :btelescope is limited to a length of 20 cm, what is tdby8hmzj c +:,5jd*xahe 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 biz48n umm1ng-t t) l(x l1d8xeyepiece of focal lengtt8x1xg(4u1ml8 bl nzi)-d nmth 20 mm, adjusted for minimum eyestrain. 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 lengsnwc20c5c2c;4 hw .f4 uhrdkfth 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 scwhcc24.nru2dk wfh 0 5cf4;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 has7j4rg p3f9crrqdk f*5 an objective with a focal length of 3.00 mm and an eyepiece of focalp9fjrrcgd 3fk5*r 4q7 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 barrel and an objective f3f u6tukl l9hce)p7*with a focal length of 8.0 mm. What is the focal length of the eyepiecef hu) 6tc *3lp7kful9e 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 angul ,h/y 4wej2yesar separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smese y/h, j24ywallest 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 whichnmt maqlx*; ; 9m0-nrb 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 on9 0rmlb;nx*maq- tm; bjective?

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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 nmx.kyh-:4zh changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum an4xy-mk. nhzh:gle 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 Hub*+(8cuc+j tm* k*jkq(d py ixyble Space Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this cckm+dj*j*qp+(i y(8xt uy* k telescope achieve if the wavelength is 500 nm?

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