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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 i 6+ erb3dnmf,yn a camera is determined by +m,b er3dn6fythe

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The amount of light reachi o+j- f8tcty0rkzs7(ang the film 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 ref .7 s*jvyjvrroqe g2*mh3w fh/ek:0y9lex camera the lens-film distance may be varied by sliding the lens forward or backward with respect to the cav:2y0mfv 9* r gh/jh. y7sej*3roqwekmera 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 co;il cdxcv/uo4o (2c9oocf51bvers the film with a field of view that corresponds approximately to that of no/odcbl c;x495vf12 occo iu(ormal vision is 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 telescope to magnify deig/ ax/be* :sp 2j5yz9x7v limages 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 7;:w9 bqqbbq4)ygmj fa wider field of view than that of the eye and through whichwjb; 4y)m:qf9q bgq7 b objects appear smaller is 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 follo ob n;vkol5a780;e kmowing ways is a camera different from the human eye?

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refraction of light by wduxh:,fh3dqa( 5j 1e 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 obj:,h)v+jx mhoq az)0y eects clearly is

Correct Answer:    
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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distance at which an eye can see objects clearly isw( u1wg 1,iuwlz s5gpqw-8. qk

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 bacfdqispwkj,y1a30v +2 k, the person is likely to suffer frk1jiv0ys q2+f,3ap dwom

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be lai /lyxsc*5,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 .hf6gge,c5 w ca vision defect that can be corrected by us5fw,g 6ch.ce ging

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 perqm6 j5ni a.:xxson is likely to suffer f5xn.6:j maxi qrom

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usualr1 m kqsd92pd0ly 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, this gives rise to a vp 1jpt64b8srsision defect that can 1pj6b4pst sr8be 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 glsvd t mt;1 ::i5wvy5qhass?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very large diameter objective in an , fp:-jah3cum astronomicalhmp-ua3jc:f , telescope is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a refracting tel*uw ll1lk8asql).tx8 escope. Suppose an opaque screen i )wt1 la88qkllxsl*. us placed in front of 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 vi+zrapnh mes8:(bn *h)sible spectrum, in which of the following cases would you be able to b*mr h:pe+sb8 nza() hnest 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 m imiz4qmg-bshm --/4uagnification $m$. 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 h +07f zc( nnkjb4sp2oto see the greatest detail when usk2b0 (7 zjsf pnnch+4oing a microscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suf.htr2/l ,4dz d5k3x7y khmgadfer from

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffer fromi,uyf;rax3p -p, s 3wlav8 od/

Correct Answer:    
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Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a mi;9s9 zxz3nc7m7vp9rrd6am ) r p63 kh i3vfboncroscope 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 2 lf-r qh,/vb))/zn5swlnntodish is doubled, what happens to its resolving power assu)os25 vn)-l/wtlhfr nn qz/, bming that all other factors 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 of 0,xr yve7ji q;18 cm. What lens (in diopters) will allow this person to see distant oqevj7,i;0r yxbjects clearly?

Correct Answer:    
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Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly objects more than 70t -hj18)w .sojvcev *q.0 cm away. What power of lens shohqs8v.*wov jct) -j1e uld be prescribed 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 wears2clu*8jp gdq hb/om7p;77cg s glasses whose lenses have power of -0.15 D. What is the person's fargchl q 8/mpg *u2bo77s7;pj dc point if the glasses 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 farsightus6 uaqoxs q;8u,)3 nzedness where the uncorrected near ,u)oqnx683;sz uusa qpoint 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 1-5w/ on miw3( pjhn+wi00 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is5jim-w/p nn3(wh i+ wo 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, i) z9*txwoo-ocvc xbnng eb)c7p+ x.1nnn 0-3kf he wears glasses oonnc xo z73v+nt)w-e.pxnkx) ogc1*b bn 0c-9f
+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 nearmh0 xm8tkw/91u jj ,ky point of 25 cm. What is the magnification of the lens for that person when their eyes w9jyu kjmtm 0h x8/1k,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 cm3qw+ /2 cgfntghdr0 )uj4 3ubu. A person has a near point of 25 cm. What is the magnification of the lens for that person when bnutdgqc0)/+uf ur 3h3 24wgjtheir 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 j3r:: tdj1t*l6zv. i kancy/ea focal length of 7.0 cm. What is the magnification if thntejkvjatc /:l1 d*:.zi3 6 rye image 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 convt)anc:co3qk *nvw.+ igxy7*oerging lens of focal length 5.0 cm as a magnifying glass. What is the maximum possible mxy+ )73 o*o.ntcvakgn :*icqwagnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a convergio4 fgoq*c 0wrs(wc1 c3 -f;uufng lens of focal length 5.0 cm as a magnifying glass. What is the magnification if the person'0csr4f cu1gc*-woqfo uf( w;3s eye is relaxed?

Correct Answer:    
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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, + 7nu vmslz-q02c(rgh8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maulq 02( vh-7m csgzn+rximum 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, 4u fcf55sj l/g zaje1 1/vu1u,e.0 cm, 8.0 cm, and 16 cm. If you were to use any two of these lenses to build a telescope, what is the f1l c /5zuej1gfjsvu,uea/51 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 length of 200 cm and its eyepiece hai * wkpb2hr5m;s a p mwb;5rkhi *2focal 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 astronomical telescope wit) ie;;( kzdfbdh a magnification of 10. If the telescope has a converging lens of foca;bd(e ;fz )dkil 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 teleslhi/ .ftm 35/ 8tuli8/pkypw scope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, 8hi pt./k5y ilu//sl p3t8fmw what 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 telescopeou2 q-o9 7y b47coqkds+jh es1. If the telescope is limited to a length of 20 cm, what is the appr2 o kce9bosq yj7+-174s udoqhoximate focal length of the objective?

Correct Answer:    
Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an objective lens of focal lengths3 pyruo;ixy8nf*w7 a r+eau5y .+sg e(c)wk, 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. How far apart are the ln 73syr,ceugy;w y+k.aa 8u5 +ie r(f)wposx*enses?

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an object h- kls:67fzgv adk*r2ive lens of focal length 1.4 mm and an eyepiece of focal length 20 m kz -f27hdsk6*:r avlgm, adjusted for minimum eyestrain. A blood sample is placed 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 ob:,(bmfwhm(m tjective with a focal length of 3.00 mm and an eyepiece of focal leng (m bwm:h,fm(tth 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 wi,f)fwv/3 tnwygik99sjc 7p* cth a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnificaw /icny,7stjfk)gc 39 pvf9*wtion of 240?

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A binary star system in the con5rcince:o9u(in e w38stellation Orion has an angular separation of 10-5 rad. r eoini:c3c(8 ue5w n9If the wavelength of the light from the system is 500 nm, what is the smallest aperture (diameter) telescope 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 designed to resolve objec5k evfl:k .*wqts 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 the objecti l.5kvek wf:q*ve?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The pupil of a person's eye chan (mya6dzq /h9 ol qyn3mi40hl;nuezc. v)ey)0ges from a diameter of 3.5 mm to 1.5 mm as the illuminatiov e9ma)/03n4c zlh 6i zul.;yyh)ymeq(0dno qn is increased. By what factor does the minimum angle 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 reflecting Hubble Sp3y jd*0l,xd js2fo.yp ace Telescope has been placed into Earth orbit by the space shuttle. What angular resolutionp0dj3x .2s*jol y,fd y could this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
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