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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 open and the film is exposed in a camn i8 0xejo3,oqz-rg;sera is determe joo;rz0,8 gs qn-i3xined by the

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The amount of light reaching the film in a camera is dete,b0, ki;b+waoyx*ic4 rpw k0trmined by the

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a single-lens reflex camerfqj a e jfc.4j:,isd(5a the lens-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained, this means td ijsf.ae,(q:cj4fj5 hat

Correct Answer:    
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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that coverbvhuw; )94eyys the film with a field of view that corresponds approximately to that of normal vision i; yhv)euw9y4b s referred to as a

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that acts like a telescop;rbbsqdj t;707juv5kurv7 q;mdfr on-0 m 61ae to magnify 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 that of /f(qwo/d,hyps b v j4do-e);e the eye and through which objects o /dh,jfsbedy qp-;)v(/4o weappear smaller is referred to as a

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In which of the following ways is a camera different from the human l p2 5rg9)se9itsqqr-o,cz /hnxa 87ieye?

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refractiobr y91: c6vyabn of light 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 which an eye can see objeiwsy-,+g i*lng;(ike1 0 ramtcts clearly is

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distanc a+ ;r (4nled)cd.,3f (wcohv3z luxkse at 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 from front to back, the person is likel2l-/y xdmb+f*0mloq vy to suffe+lfymv olxb *d 0q-/2mr from

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usx7iodzf s; t 7pty- k+dk0:aj)ually be corrected with

Correct Answer:    
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Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball ituuh/ 3+qit-:c ehu l3.q2dd ws too long from front to back, this gives rise to a vision defect that can be corrected by using2-3hdcq :u/tqd.hl uuew t3+i

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, the persps;d+me, r+evzm h1/7;rogdxi u7t*son is likely to suffer frossi/prgv+u 1d; d,zexho7e+tm7*r m ;m

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually be corre7esy)j arg qtr:6 ) uyd z6g*z n:vr9y;y(g(rhcted with

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too short from front to back6a .pmfs3ol1 b, this gives rise to a vision defm 36los1bpa. fect that can be corrected by using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magnifying glasswykqx mt,x-/2 0wlse -?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a verye 53q 3iwlaojdf-)7on large diameter objective in an astronomical 7o lwone3j5di- fa3q)telescope is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a refracting telescope. Suppos6)meaa 3 p,r4+ nkcpd51ycvcne an opaque screen is placed in front of 6cmc +cpv ) ,a31 e54rpnykadnthe lower half of the objective lens. What effect 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 throughout the visible p5:u4-e jv oswspectrum, in which of:pw v5esou-4j the following 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.)

Correct Answer:    
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Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A refracting telescope hasw f/qy -*zf;; 7e4jhrf4;b,tqzs dyks a magnification $m$. 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 expect to be able to see the greates+vw wj- 7+ie60xpfex ht detail when using afi60+x pj -7ewe+wxvh microscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer fro37.ffq * bvksj8 t;qqjm

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffer frysezd (n u6z4tvydl60bl 3hob:4.o;wom

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of :9vazke :6hrp pm 5/swa microscope 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 radar dish is doubled, what hqnm2: pv( u1/u+ug dfpappens to its resolving power assuming that all other factou/upm d+(n2g pqfuv :1rs 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 pointgwr ofhd j,t)u 4c*2,z of 18 cm. What lens (in diopters) will allow this person to see distant objects clea,)odtw c4fg2j ,r* hzurly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly4;ze ry odg( rbjojd0n(4+ 9j jv(1vim objects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worv (ovio j;d0j e+mjbn41(rrg9 4y(zjd n 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 have power of -0.15 D. What : du1- m8hvjanxg7amcmf 89/qis the person's far point if the glasses are very close to th/g89mm1qc78mn ax vh u -:jfade eyes?

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What power lens is neede/okffz/fl, t4 ye-4mnd to correct for farsightedness where the uncorrected neol z/fk,f/n-fe m 4ty4ar point is 75 cm?

Correct Answer:    
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Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a farsighted person is 100 cm. She plah7djy7 tm0x4 mces reading glasses close to her eyes, and with them she can comfortably readj4m7 tx0mh7 dy a newspaper at a distance 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 hevo+t+ + pd: er1algj*eld 25 cm from his eyes, if he wears glasses*a t+epjrdgv+ 1+: leo of
+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 l-ft pq7gs5 h(n(1fu zwf )u,hbength of 10 cm. A person has a near point of 25 uf5p1 t(s7nwqfubzfhh )(- g,cm. 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 person h* pyyl1xa3*p0 (omm4k ezf uk4as a near point of 25 pfk4y0pe*kyam(1z o 4xlm* 3 ucm. What is the magnification of the lens for that person when their eyes are focused at their near point?

Correct Answer:    
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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 magnification if 54m o iybemq 7afc 2cd)n)9r0othe i)ibmnyo5q2 0)c rc d e97mfa4omage is viewed by a relaxed eye?

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging l) 7fv u f3vlp1om)p,aqens of focal length 5.0 cm as a magnifying glass. What is the maximum possible mvmffo )ql7,av )31ppu agnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging leykqi /oev10.yw( i;i pns of focal length 5.0 cm as a magnifying glass. What0vwy;1 oyqi/.peik( i is the magnification 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 cm, 4.0 cm, 8.0 cm, and 167zyysg:u0 uby 4hqr3j-iks,, .0 cm. If you were to use any two of these lenses to build a telescope, wh hzuiqy :,y0u y4sjs37-kr, bgat 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 le(w+ dkrp; 8qqaisf6n +d f8ij2ngths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to q+r6sp and+2iq88( j;kdfwifuse any two of these 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 q2h81kqh2a hcfocal length of 200 cm and its eyepiece has a focal len12hqkhc 8qh 2agth 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 astronomical telescope with a magnifici v3iz0a1o f:qation of 10. If tfa0o:iiq13z vhe telescope has a converging lens of focal length 50 cm, what is the focal length of the eyepiece?

Correct Answer:    
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教师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
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical telescope with a magnific(dg;w-zmr(ef 4 dsn6 eation of 10. If the telescope has a converging lens of focal length 50 cm, what ie sw-gddn;4mr6f (( zes the 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 tele oqxrn8)+wy2l5aptc.scope is limited to a length of 20 cm, what is the approximate focal length of the objectiv. t yp2)85+wrlaocnqxe?

Correct Answer:    
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 :jrj-s(r0 w xk6sljb2and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A br:krxs jb(0j 6j- 2wsllood sample is placed 1.5 mm from the objective. How far apart are the lenses?

Correct Answer:    
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教师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
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an objective lens of focal len3q o4bicpd1j *jmls,3 ilk.g9gth 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placiqjm1li 3bgod,csl3.kjp49 * ed 1.5 mm from the objective. 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 length of 3.00 mm and an ey:z:kfvk aao w.*)8zgp epiece of focal length 6.00 cm. If the two lenses are )8 vgaz.*fk:owpk: azseparated 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 ob; dudx3e(-)zztm 2 pmsjective with a focal length of 8.0 mm. Whatpu )d m-zm32szd;e( xt is the focal length 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 in the constellation Orion has an angular separation of 10mhqaw8/ /r4 kk-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 two star q a/8w4hkmkr/s?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope is designed to resolve objects which are 0.010 mm atwfp26j wkll: h.t8zz /j1ca /mae82tpart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm,l/m82./zwtz:khpfaatj1lc et86jw 2 what is the diameter of the objective?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The pupil of a person's eye changes from aogp9pn, ov:ys51v+g k diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angp5g ,vp9yov kosn+ :1gle of resolution change?

Correct Answer:    
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Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The 2.4-m reflecting16ol+cwp6k m,igh,tlktyuf4)zr5p ) Hubble Space Telescope has been placed into Earth orbit by the sfci5o mp w +lgu)y6,r ltzk6,k 1)ht4ppace shuttle. What angular resolution could this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
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