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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 open and the film is exposed yl(;rl3m1- u pek(d gyin a camera is determineglyu(y-3r ;de(lkmp 1d 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 reachiu :q +rz93gltydtkk;; ng the film 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 sl(+ h1. rvh+fzw,ysut-c,f p hliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained, tzu ,wr (ph1- cvsf+ftlhy,.+hhis 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 thevu+,*r fg:;u6+pqap2m; zke9r myltd film with a field of view that corresponds approximatelk *vem+mpd;ay+, luf: p;6u2rtzqg 9r y 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 iyyr2v 6i-w gvkr7 .(6* ouuwsxs 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 * 1 ck+sxxgq pp5ci(uoymo.;c9x6,eyfield of view than that of the eye and through which objects appear smaller is referre+ 5uyxyi1poo6 qecg*.c ,km(x9s;xp cd 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.5 dej gw.axa- 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 light52 8-mip7) ersf qderp 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 whicx:(m dor6gub1 9 e+mthh 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 slgw;r8 izz5u:qb*xp4ee 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 bq y8dhp/nw t t: f5/6mm-+drapack, the person is likely to suffer5 dppyttm+-f6rda8/ qm: nh/w 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( u -i/zb(31th v esqgtf(. gah kvc9rg0a,j)i 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 i oniy17n(1rd2 td e7jbs too long from front to back, this gives rise to a vision defeb71or(t2nd i jyd1e 7nct 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, the person is likely hxbow*i ej-;t:))p xvdah v4sa5,y 0mto suf;h5,*wsad:v vjxyo0bt i4)e m- p hxa)fer 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 correctnr, 5ck1d 1 tld9,zvqled 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 froxyt -n7hp +a/ont to back, this gives rise to a vision defect that can+ xoph -y/ta7n 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 amh)ob26khe (x 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 largsysj 8b5mqi9:9vt (tx e diameter objective in an astronomical (9 q8i tj5:sstmy9v xbtelescope 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 an opaque scree+dyh2(vi lm/sw ve ,:mn is placed in frh vmvi+e s2mdlw,(: y/ont of 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 sensitivity throughout 3reavrn)f:l ayu 7;9gthe visible spectrum, in which of the following cgav3flru:yean7)r 9; ases 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 telescop:nk,n2l n8 )wa o/fizik6odq,e 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 se q/1n *xbbn6 qo.r6qtkbb-z w/e the greatest detail when using a -xtbrw6/bn bo 6qq* 1 nbq/zk.microscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses sufooz:5(6cjj q kfer from

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suff-1,k:aoztw dser 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 thetmu4ywni:v99 :(u:p2 b ij rvu 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 remalvsin2 pv1b x(81u9solving power assuming that all other factors remain unchangeu2 av(bvxin8s mlp19 1d? 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. Whath s51 hd0 j95ulkdg0pt lens (in diopters) will allow h l00psju5dgkt 915hdthis 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 objects 22 /hvx /+ciyikut:6 gevpi 7zmore 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 eyvykputc:7/ihzxii62g e+/2v e?

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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 kcp *s/ 6xaw+h-0.15 D. What is the person's far point if the glasses are very close to thew*/xscpa + k6h 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 where the uq35tkl- edgyx* tkrz2g3gb3 u m/52hfncorrected near point isx fkgluq2t 2-gz3 be/g*ryk5h3m 53td 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 farsmh59kmhl gl-+3 tro +yighted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper gyhr lo-mh3km9l 5t++ 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 he wears h wrs7 *ycl8o c3c1+jwglasses ofh s 38c7cwyow* r+1jcl
+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 c/ w9cbqgtlcf*qerp :a31 *:cwm. A person has a near point of 25 cm. What is the magnification of *e 9cq3wbca*:1 /pgw:flqr ctthe 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 length of 10 cm. A person hkjwrud 9*o,7i as a near point of 25 cm. What is tid *u,rk7jw9 ohe magnification of the lens for 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 focal length of 7.0 cm. What is the magnificati az n+a/ijbp/-on if the image is viewed by a re/-ni ap+ab /jzlaxed 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 magnifying g pb 3) xvfdq4m:d4kp)class. What is the ma ))fdcpv43dm4:q pb xkximum 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 mw a kmd03 75n6pmq0h)t swzz0length 5.0 cm as a magnifying glass. What is the magnification if the person's ey0ktz zqdm63 nwh pms75a00m )we 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, 4.0 cm, 8. o 4lm2l:sv*geyeb-7 6vh:bbx0 cm, and 16.0 cm. If you were to use any two of these lenses to beb4o: me:bh *6bg2v7yllvx s- uild 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 c-j k-vma;ee-a m, and 16 cm. If you were to use any two of these lenses to build a telescope, what i-e;-ma -ajev ks 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 pop.lc9s/h w( jjtvr-7d q fy -)-sro/length of 200 cm and its eyepiece has a focal lefvj/(olpdts-h o)y c-r9q rw.7p/s-jngth 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 astronomhr.lcou7;swn8y72 ozh;+ n bg ical telescope with a magnification of 10. If the telescope has a converging lens of focal lengt;8ozc.2ohnr wngh7u; 7 l+sbyh 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 telescopz9 o:w:d(t :lc-k rp5+fbgzupe with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the tegoz db:k- 9c:lt zw5:rf+p (pulescope?

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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 isql9e 7grg 0sx1 limited to a length of 20 cm, what is the approximate focal length of the objects0lqr19gxe g7ive?

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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 o+1xf5cpez 0 vhf focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum ey zv5cxe0hp 1f+estrain. 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 eyepiece oij28(0lhw:* o iubl*fby gq8if focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. :jb(qgwu*b0 hoi8lfi2yi*l8 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 l xq3n5a7ua- jlength of 3.00 mm and an eyepie-luq5n7 aj3 xace of 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 barrel and an objective wiu.2o3rlj/hruf r xxh. e8mu( c.8 imc4th a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnification hjxm..o r cr u/m82xre8.clfuh3(i4u 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 tnc)tk6bou v/2j ).zq phe constellation Orion has an angular separation of 10-5 rad. If the wavel2 otn/pv)zuk b6 .qj)cength 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 designed to resolves.n zx 1+1ws qz*zqrn91nfew4 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 thzwn sn1fzse9q1.4 xq*+z1w nre 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 1.5 mm aleskd .wv,x/ 0s the illumination is increased. By what factor does the miniw s,vld .ke0x/mum 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 has been placed into Earth orbit b: ;l aceebbrci9fywxtt 8 - +.trt::7gy the space shuttle. What angular resolution could this telescope achieve if the wavelengt:t: lb tcytraei-gf ;7x:we +b8r9. tch is 500 nm?

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