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PRACTICE：Physics Unit25: Optical Instrument
本Practice来源于https://webassign.org，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 324 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://webassign.org/test324.html
 Author: physics  Publish Date: 2023-05-01 10:01    Total Marks: 51 mks  Marks Awarded: _____________

User Name: No Login  Start Time: 23年05月01日 09:35  Switch to Whole-Paper Mode

Mark Problem
1#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The length of time the shutter is opendx) ) *wls5gpo 40lgis and the film is exposed in a camera is deterg)x*pd0o 5ll s4w sg)imined by the

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The amount of light reaching the filmbb4;ivud jz l0w,2h:ep o79ea in a camera is determined by the

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a single-lens reflexeydd :jinv,iq 8)6k v: camera the lens-film distance may be varied by sliding the lens forward or backward with respect to the camera housi 6djyvqi:n:d,e8i) kv ng. If, with such a camera, a fuzzy picture is obtained, this means that

Correct Answer:    
Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that covers the film hqu/fz rq)6o 7w (nl+)(byzjkwith a field of view that corresponds approximately to that of normal v67 (wnkf/rh l))o zuz yb+q(qjision is referred to as a

Correct Answer:    
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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that acts like a telescope to magnify i8gfxa+qf7c:w-z 66tavc bx0 images is referred to as a

Correct Answer:    
Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that covers the film with a wider field of view than 3l+zsbyo n iy-q3nz39 that of the eye and through which objects appear smaller i +s3zyybi znlo93q-3ns referred to as a

Correct Answer:    
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Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In which of the following +f. rxmsvlot*m67i-nways is a camera different from the human eye?

Correct Answer:    
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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refraction of ligcb3 o ykk1i)u8ht by the eye occurs at the

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The closest distance at whi3xlyv9.2 85x gd4srel u,aivbch an eye can see objects clearly is

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distance a1f/4e ddxc 8dmt which an eye can see objects clearly is

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too long g-5 +juo kdagpkct83+from front to back, the person is likely to su k-gg +8jkac3u5p tod+ffer from

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be correc4 w;ayk;wmt7p ted with

Correct Answer:    
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Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too l r:y(hlug :z :uk-otf1ong from front to back, this gives rise to a vision defect that can be correcte rtl1 yu-k:h:uzf :o(gd by using

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too short from front to back, tjd/o+nkwq9nhn 1ul+)u:hsr 7he person is likely to suffer fr1qnd:o + ku7)nsrjh ul9/whn+ om

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually be corrected e4.k1 ,0adxfsk4 go aub0hi1rwith

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too short from fro g emx82-dt2xhnt to back, this gives rise to a vision defect that can xhm 8xe2g t2-dbe corrected by using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a man7ly4vs os //bgnifying glass?

Correct Answer:    
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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very largecg+ uiwav cvr0o5 5wzj;c0 k28 diameter objective in an astronomical telescope iu a ;8igw2vkcj055z+0v cw ocrs

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a re-aj0 8d1ywrfd fracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What e 0ady-r8 djfw1ffect will this have?

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used has uniform sensitivity throuuov4c:y1ah d3 ghout the visible spectrum, in which of the following case4c h: v3y1aouds would you be able to best distinguish between two closely spaced stars? (The lens referred to is the objective lens of the telescope used.)

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A refracting telescope has a magnificqcc e; -xyl9 r.mq3ev/ation $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification?

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  With what color light would you exy h-gxrc r qh075qt2t:pect to be able to see the greatest detail when using a microyt-x520q q7rt: h hgcrscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer f(d;4nvaut9esj( en2 arom

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suf3d*v4edzu cze2 5rf: vfer from

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a xjs 97h;7 cxs,jb4urmmicroscope refers to the ability to

Correct Answer:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the diameter of a radarh k*6 brzs6zv*r, 7szj dish is doubled, what happens to its resolving power assuming that all other f*6 zvs rzs rhz7kb6j*,actors remain unchanged? Its resolving power

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A near-sighted person has a far point 9)pa aethzm+ adpq+e v )xuv:5 rt-o/3of 18 cm. What lens (in diopters) will allow this person to see a qzd t:h 39 /mvppxao)+euat5)v-r+edistant objects clearly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly objects more than 70.0 cm away. What powhn p z.i6s,uu*er of lens should be prescr*nu6 ihus ,z.pibed if the glass is to be worn 1.00 cm in front of the eye?

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A nearsighted person wears glasses whose lenses havs+l q47ygf6htqq9 .zge power of -0.15 D. What is the person's far point if the glasgg q6qt4shf7 yl q.9z+ses are very close to the eyes?

Correct Answer:    
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Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What power lens is needed to correct for farsightedne/bol9 3 uzgis0a;8 rptss where the uncorrected near popsa bog ziu9l3t08r/;int is 75 cm?

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a farsighted per:6 mpk8 aqzv1fson is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distanzkam1 :f pq6v8ce of 25 cm. What lens power is required?

Correct Answer:    
Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A farsighted person can read a newspaper held 25 cmb.ft*iu o 8(jo;u ifz,h9ivha7j,kv9 from his eyes, if he wears glasses oo9t i8h haivfjujbzo, 9*, .ukvif;7(f
+3.33 diopters. What is this person's near point?

Correct Answer:    
Mark Problem
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal length of 10 cm. A person has a near point of :h.u+euro81w x)g0i b.flm s w25 c: o+ewr0 1whgx.f8i.suu l b)mm. What is the magnification of the lens for that person when their eyes are focused at infinity?

Correct Answer:    
Mark Problem
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal length of 10 cm. A persdsq3f4 l - -mrtm-afk/on has a near point of 25 cm. What is the magnifica4ftrf ls/--3 -dmamkq tion of the lens for that person when their eyes are focused at their near point?

Correct Answer:    
Mark Problem
35#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying glass has a focal length of 7.0 cm. What is the magn6t ism5n-, korification if the image is viewed byr6t5ismk,- no a relaxed eye?

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of focal length 5.0 cm as a magnifying glass. tqo2 8gmj15 hd Whadt1j2h8mg5qo t is the maximum possible magnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of focal length 5.0 cm as a magnifyizg9l byfl lar/e740 e1ng glass. What is the magnifl0f/lyle gbe14z ar9 7ication if the person's eye is relaxed?

Correct Answer:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of focal lengths 2.0 co2ov l )p(xq ,jy3k9k6uu(mcq m, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, p9lc2uom k6xqo, y3(v)(qjku what is the maximum magnification you could achieve?

Correct Answer:    
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Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of focal ljm k63/d8 c/f3 ybtkejengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two of thesecjf /y3m/kkj 36d8bte lenses to build a telescope, what is the lens separation for the maximum magnification telescope?

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The objective of a telescope has a focal lengtho ;3uuxztux w:+ j*1um of 200 cm and its eyepiece has a focal otx3*x;u j+m wu:1 zuulength of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an z).qdq sk4;;o 946wxn ai5jxyq /dcyvastronomical telescope with a magnification of 10. If the telescope has a convekx;6. acvqs5i d4qw/; x 9)qo4ynjdzyrging lens of focal length 50 cm, what is the focal length of the eyepiece?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical telescope with a magni+9p )arnk 9cqe0 fcrjsm;.4phfication of 10. If the telescope has a converging lens of focal length 50 cm, what is the cfnc+4.9kje )rmq h0pr;p9as resulting length of the telescope?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person is designing a 10X telescope. If the es9.ag twb,a5 h67 arltelescope is limited to a length of 20 7aw6 arh,le9 gsa5t. bcm, what is the approximate focal length of the objective?

Correct Answer:    
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Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an objective lens of focal length 1.4 mm ag xe.e wlwtzcxsba(w25 -6 24bnd an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample i4 x2gw6 -xb .eze(5cbtw2as lws placed 1.5 mm from the objective. How far apart are the lenses?

Correct Answer:    
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Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an objective lens of focal length 1.4 mm and an eyepiecei7w9 4s ipb:kq of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objectpibs 7k9 wq4:iive. What is the overall magnification?

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has an objective with a focal lengvxc5j4eadei(s/ c/c g2 cfh8;th of 3.00 mm and an eyepiecei2(a8/xg5 ;4de cfvccsh jce / of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnification?

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has a 18-cm barrel and an objective w+d 3kcfvj)hu 0ith a focal length of 8.0 mm. What is the focal len)cju03 vf+dhkgth of the eyepiece to give a total magnification of 240?

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A binary star system iax+xbw.p2 b +9f6ku.jb itw k5v,dvr8n the constellation 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 aperture (diameter) telescope that can just resolve the twor+wvp j9akx 8+ ivwx52 d.bbbk 6t,.fu stars?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope is designed to resolve objects whichmx3*j x 0o3b rfl/dt3k 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 rxl obkx3m* /30dfj3 tobjective?

Correct Answer:    
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Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The pupil of a person's eye changes from a diameter of 3.5 mm to 1.5 mm as wq.(p 8x:wp8vxg*-kl-cm 6v bmz 8yn.sgmr7k the illywzp-x v8.-*8 k7sb: gpvxcgmmkw6mr8.qn (lumination is increased. By what factor does the minimum angle of resolution change?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The 2.4-m reflecting Hubble Space Telescope has been placed into Earth orbit by0+g cijp pl6jd8ck t;5 the space shuttle. What angular resj 6k 0gict;8ld pj5+pcolution could this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
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