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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 cg; ,vduhaq.iqb i di8*9:yax;amera is determined by tad9db; viaq*;qu:i xih.g ,8yhe

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 h:mlmdxa j.(us +7sl;6cy,guh/tvj+ determined by the

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a single-lens reflex camera the lens-film distance may be vog3r(4 kk9jf/i f.oa oaried by sliding the lens forward or backward wit9gaf 3 ro.k4iko(/fo jh respect to the camera housing. 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 wit 78(lpjnqy 8 ta,(l f0 n0, :kmsnopc-b0jhchdh a field of view that corresponds approximately to that of normal vision is referred to as hn(m8t sldkhq0c0ljp80y(a- ,7c nf jo nb:p,a

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that acts like a telescope to magnify images 04j rlmbo/ m,q6g)ipf 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 th hc i*( (1r;sizpwnf/bat of the eye and through which objects appeanw fh* /i(z r(;pi1sbcr 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 eye?tc,m6j jh58gs;xucfztsj6n*n( +g c;

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refraction of light by the eye oglw2+atw4aqc/u :povp cd9.jd) cp,,ccurs 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 s,4glqc l n+l7o; 1bohfee objects clearly 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 oky(8 ibuuw6 t-bjects clearly is

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball iqf/6teum+( n;(zwqog4p2f b us too long from front to back, the person is likely to suffe/wepq4 gzbm(uf6+to (u; qn2fr from

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usuallyc qv4 c;or:a1;p 9cw7, zenqnv be corrected 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 gives rise to a vix/joway1ja4 a(0.vb5z t w: ygsion defect thatgxobjay/4w ytza1wj5 :. 0av( can be corrected 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 backz *kwy v(09qmf, the person is likely to suffer fkw*0yfv 9 zmq(rom

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually be corrycakj ,k x)-l2ected with

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too s a) gzy,vh fw8q2mgn+8hort from front to back, this gives rise to a vision defect that can b v+8z2ghn8 q g,fy)mawe corrected by using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magnify,7 qdvb ko,q8ying 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 large diameter objec.3s ujl :ddhn 5)sx*artive in an astronomical telescope is 35.lrxsjhdn )d:a su*

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a*a)tb; 74dd pqt4g( wo6 mkios refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What eib t(sp67* m;tkgadq o) 4o4wdffect will this have?

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
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used has uniform sensitivity throughout the visible spectruchyar tf c6p5:p/cg6-kpziuv. l9zxp r/ .;5dm, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The lens referred6vpri/.z 5/al6u :pp5.ctdypf;9kr xc zchg - 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 rc o +ae)oc2n3l-fs i y0ammtoy84,-a 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 greatest detail w, / n afn1 alcn7qjk31ubn;k6ehe/1un3 ;lcn67fq1a, bn anjke kn using a microscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer f so,j dg85 +uv;sbhccyz4(6lw rom

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffer 9zb kt*wgma(( from

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a micros h28kym:)+pfv/8 vi(cceg jepcope 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 happens to its resolving power g9/ qxdf (9llx,v4n6(rdonpxe w:cz0wy1r+nassuming that all other factors remain unchanged? Its resolvindd+n p/ r,ov w(06 xeyzln4( :wx c9fnrlq9x1gg power

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A near-sighted person has a far point of 18 cm. What lens (in diopters) will ,+j-*alkp wys8wf :tn0 ruw;nallow this person to see distant objr; w+:ls wy wk* fan,jnu-t80pects clearly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly objects more than 7(4 +sn(u hc;isbejk9 k0.0 cm away. What power of lens should be prescribed if the glass is to be worn(sh;k4 j(su+n ki9ce b 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 * *6cs,+ wva/222f izufvcf*thm lfrilenses have power of -0.15 D. What is the person's far point if ,w lzcfh ffmi*2t*s r/2avc*u+6i2v f the glasses are very close to the eyes?

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
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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 farsightedness where the uncof ;oets 4 2digkj7+ oe0jykzw1:1,uphrrected near point ushyj2w :1dkfj71 p0zo to+ ;eik ,ge4is 75 cm?

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a farsighted person is 100 cm. She places reading glasses clo5i tl+o(y-nsll1c b1 use to her eyes, and with them she can comfort tocsb15-1i l l(yln+uably read 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 held 25 cm from his eyes, if he wx4s3-:g u;3/zxb h,hhu1xxynene -naears glass xn4hg3e unu xh;z3-n,-e1bas x/yh:x es 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 length of 10 cm. A person has a near point of 25 7w7t(vk b f 0sd0csb0)x d w..amnst+xypc9m ;cm. What is the magnification of the lens for that person when their eyes are focused at i7 00d7atsww ky;v.bc )xb sxd+fsn(.9pmtc 0mnfinity?

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;1be2;v eiv*k q.h .gk2 abiwgas a near point of 25 cm. What is the magnification of g bhq .kb1e .;i2egviv2a;wk*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 hasam 2gw f,ip6,g ai 6u/,q,yi14n baha(oukmo4 a focal length of 7.0 cm. What is the magnification if the giaa a,4him,o ,iqn 1b4p w/6akg6yfo2um ,( uimage 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 1hs0armxc( j 99alhcrqe) gf,)x nz,-lens of focal length 5.0 cm as a magnifying glass. What is the maximum possibl(cr1a cf ,enr jxql9 mx,- 9zsga)hh0)e magnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens o;puntslt5ql(r e,pk11i a(e6f focal length 5.0 cm as a magnifying glass. What isr1in15k; ptqe(, ep(tlu6sal 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.qc*)bmv nv*k(b31jl x 0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnification you could q *bbcmx ljnvk1(*v 3)achieve?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of focal lengthsra9e ivs-at t.)xc65j 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two of these lenses to build a telescoa.ei)t 6rs- v acj5x9tpe, 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 t 9m+fzuu,o ,bwelescope has a focal length of 200 cm and its eyepiece has a focal lengtf9 u+b uzw,m,oh 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 magnififm20tg99tjnjfe0y t 1cation of 10. If the telescope has a convergingtg19j0ejtfyt9f 0 2nm 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 telesd4 r8wl*yi9lx8(fgno)m5ey u 88hsvv y0t6 sccope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the teles vtw(m40rslsciyyn *8v9d8ly) o g8hf 6x5eu 8cope?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person is designing a 10X telescope. If the telescope is limited to a length 7ydzzvf)t ,+ tnc0d,kof 20 cm, what is the approximate focal length of the objey)z0,dt c ntv7kdz,f+ ctive?

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
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an objective lens of focal length 1.4 mm and:e9z2 3npi6 8 yds:equt0fqlk an eyepiece of focal length 20 mm, adjusted for minimum eyestrailqz: :8pu 2eqdnekf3yi06s9tn. A blood sample is placed 1.5 mm from the objective. 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 lengd :9jd2 6gh1mixmhn4wth 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. Wx wd 6:gh41d jhmn29mihat is the overall magnification?

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has an objectiv5dod+vw;ya :e;kuzrh 1o t;pm 9kbs4/e with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If tsd ;mw;oo5upaz k+rd4 bk/h e 1tv:9;yhe two lenses are separated by 40.0 cm, what is the total magnification?

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
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has a 18-cm barrel and an objectivecaqig,ho6*m 7 with a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnific76 o,agmh*qi cation 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 separaaw/ x)g3ba5not5:wl2)n yxq rtion of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest aperture (diameter) telescope g/wryxoa 3)a xqln2:wt5) 5nbthat 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 designed to res nrp+op +.ktxxw- -;wr tf8-ssolve objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm -p- trsf;twwn-so.+ pxrk +8x and the wavelength of light used is 550 nm, 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's7y8(:q-(l q wo7xgdti n8tsuh eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor doeq7wg7 ytd(xuh(ltq-s :o8ni8s 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 byecv0k o6 z1ufvf 0.ut( the space shuttle. What angular resolution coou00 ue6 .vkz(cfv ft1uld this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
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