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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 )1byrdt*sc6(n;.jxvi u3 wk*w s wsa4 the film is exposed in a camera is determine.wkvw 1a;)rss (wyu4d jtbi 6s3*cx*nd 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 determined by j4s(+ bfiwa42k elg)x the

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a single-lens reflex camera the fjtm,h nwk (,itela- ( u3+xu9lens-film distance may be varied by sliding the lens forward or backmx3l(tknt ef,a(uw-ji+ ,hu 9ward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained, this means that

Correct Answer:    
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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that covers the film with a field of view that correspowth;1 g5y ph4x,i r2hld:cbke;pp pkk 0 r-q:2nds approximately to that of normal vision is referred to as hq:,- 4l1pk kkpx05h i2dthw2p:pre;; cyrbga

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that acts like a telescope to7e -9kqre)l ez 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- ybv0a+4bm/irra.rr a wider field of view than that of the eye and through which objects appear sma4brri0y ra+b- a v.m/rller 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 rrdvni6axyu 8taxv k t46ou(63/b(-bdifferent 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 light by the ez , 16s2hu-d yzou+wbeye 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 objects mz3bd d ia;0)oclearly is

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distance at which an eye can see objects clearly i hu4bw/wq(t 6bd57kbfs

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball) mnffk )abb3ygm-g z)62jqe5 is too long from front to back, the person is likely to suffer fknmf a) qg3)gb 5zm26j-b )fyerom

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be coruox zf/h*:t8 1d1 zrudrected with

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too long from front to back, this give +omtq2v,mhn (s rise to a vision defect that can be corrected by u mt,om2qh +nv(sing

Correct Answer:    
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Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too short from front to bacm5)u.e.e xsm k.5lwkg k, the person is likely to suffer freuk5mwxlmge sk .. .)5om

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usuvy (g q4p*yk:,hzj9bually be corrected 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 back, th6zintbxo2;tu ds7 ; 3 2sbiod:is gives rise to a vision defect that can be corredbst;tsn 6bzo272dxoi:3 u;i cted by using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a f.6vxodsfip vt / a+02magnifying glass?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason fl;-ppqc kt9 aliyn0;*or using a very large diameter objective in an astronomical telesc0cn9a;lykp p l*i-;qt ope is

Correct Answer:    
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Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a refracting telescope. Suppose ankc8s 2;wga4 fuedtj:6 opaque screen is placed in front 2 8cfeaud4 tk:s6 jw;gof the 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; lkbtm-ia0- q visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The lens referred --it;l k 0ambqto 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 has v (x7gmqvuj4 vwx+ efzr1j-53a 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 woulu (j3ki 4 gunurzr;j*xz j(vn7 05mv:wd you expect to be able to see the greatest detail when using a microscopezz4uju7u( nwi0; k53gv: njmvrj r*(x?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer from:u dyz ai+rt)3

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffer f8;. nur,fadcsczjm17 rom

Correct Answer:    
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Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microsco 6;s6xs zpmcvt5v fl2;pe 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 f1 *.p(f6a e8h7ctiil2jbldqhappens to its resolving power assuming that all other q6a2t7iflldeb .cf8p (j* 1 hifactors remain unchanged? Its resolving power

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A near-sighted person ha ;d*2 uv:bdmvefmz :+vs a far point of 18 cm. What lens (in diopters) will allow this person to see distant objecevf2m;ud:+ mvb* dzv:ts clearly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly objects m.ate(y: vxxx8 ore than 70.0 cm away. What power of lens should be prescribed if the glass is to be woe(. txvyx:8xa rn 1.00 cm in front of the eye?

Correct Answer:    
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Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A nearsighted person wears glasses whose lenses haveaaq),5ix y*s i power of -0.15 D. What is the person's far point if the a aiq*si)xy, 5glasses are very close to the eyes?

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What power lens is needed to correct for fgy+g6en *1szfarsightedness where the uncorrected near point is 75+ 6yneg1*fzsg cm?

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a fo6dgk 95hsf9sc ds e;4arsighted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a d esc64fs h; 959dgkosdistance 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 cm from his e,(hd 6m bnln/vyes, if he wears glam ,/ n(vn6dhblsses of
+3.33 diopters. What is this person's near point?

Correct Answer:    
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Mark Problem
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal length of 10 cm. A pers,e0r0hsj/nmbsj d7w8qp(ge 8 on has a near point of 25 cm. What is the magnification of the lens fobej08 wjesd8m/7r nq(h ,s0pgr that person when their eyes are focused at infinity?

Correct Answer:    
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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 has a near point c eth(u/ hpc95of 25 cm. What is the magnification o5/heccpu t(9 hf 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 bnq9*l6 xpf /1 okyb0d*xbtn+magnification if the yx 09*of bbp+x ldq* nb6kn/1timage 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 convefepyfvqtnd u22;; 6qc 1alcefk4 )4 i.rging lens of focal length 5.0 cm as a magnifying glass. What is the maximum p.qe6 feqfcf dlav;)21up;4kn i2 4tcyossible magnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of focaly*kfyv 4exx/ f9u: 6zxa- eny8 length 5.0 cm as a magnifying glass. What is the magnif*feex kn /-u:9fzy4va8yxxy 6 ication 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 foc3 rk s (+gw) z ++xgqzn(r.kpg5xcf*jdal 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 ng fxj +p+kr*s5 3xq zwgd(+.gz(krc)the maximum magnification you could achieve?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of focal lengths 2.0 cm, 4.l9gc er,8 ma9bb5wd2j0 cm, 8.0 cm, and 16 cm. If you were to use any two of these lenses to build a telescope, what is the lens separation for the maximum magnification telescopgjrdmlw,ce99528 bba e?

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The objective of a telescope has a focal length of 200 tyuj r i t,s9-; 1cg+lxhk4i488ltcoycm and its eyepiece has a f i 8s1g 4ltx4ir -9y,t+louykhc 8jct;ocal length 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 astronomice1;er3q; gwi0 fj l.tual telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the 3 euejgiqw;l;tr f.01 focal length of the eyepiece?

Correct Answer:    
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Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical telescope wgjx*ynas.9lwvs ,n 58ith a magnification of 10. If the telescope has a converging lens of focal length 50 cm, whaanvg xn*58.wyjss,9 l t is 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 telescop tod6z*u4j wd5e is limited to a length of 20 cm, what is the approximate focal zd6uw4jo5t*d 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 and an eyepiece of fu4y: zsn767 fhcz)/pfn c )wpvp+ hg)bocal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. 7): pz)nh+gsuw c4z )f6h7/pbcvpy nf How far apart are the lenses?

Correct Answer:    
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 eyepkzw cc y/xp 6-6jtde9kuf+d .f5iq g/0*7szaziece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from thee7t*j 9ds.6a6zykw -/ k /pcfzdiucg5x+0qz f 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 acu +g, b0d wqjc))a2nc;zx+wan objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated byn zx)jdwc;+a+w0 u c ,)q2acgb 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 barre8a8de)sfu rjr 1 :e8itl and an objective with a focal length of 8.0 mm. What is the focal length of the eyepiece to 8 fu)8eesiar: 8jtr1dgive 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 : s(q7/zk 38)h nt3epwwstf.bsb d c7cthe 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) (hsp:w/ez sdqb3 .f tb7)ctwc7n8 s 3ktelescope that can just resolve the two stars?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope is dev(fphi q6j9 /psigned 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 thhjfiqp/pv ( 96e objective?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The pupil of a person's eye changes fromua hp4*j8upo,dc*l ii3i/)pf :n qz0v a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what foqil,vdu8)i ifzc:4* hnup/j ap3 *0pactor 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 oxt8zce7 *uc:*l 4pb,1 xwtx qorbit by the space shuttle. What angular resolution could this telescope achieve if c xqu zx,8:et l7wp1*tx co4b*the wavelength is 500 nm?

Correct Answer:    
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