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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 obanz, cdxc.lu:8t*,a erdh 6i88;rzshutter is open and the film is exposed in a camera is determined by h ozxrd i*c;dr, ,c:6lue a8.tan 88bzthe

Correct Answer:    
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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The amount of light reaching the film in a camera iet p6hp7 :q- cggqwf lub4-;w6s determined by the

Correct Answer:    
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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 vaf(w.wx9w6k,of sg* qhried by sliding ts(hkww,6 9f*go wx .fqhe lens forward or backward with 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 with a field of view thatqw7 m5 8k,bkqcfj *y:w corresponds approximately to that of normal vision is referred:y 5c,w *qq78mwk bjfk 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 images is 1 qx2kvf7hh8p 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 t7 lyy(j1icx;r jav47 nhat of the eye and through which objects appear smaller is;a y(rj717j ci4x vlyn 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 k me 9y 6atsnwh1,z)j6fos7-fd(m ,ccthe 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 eye occurs / hhas 5h7ssqk 8s tqq:1fc)h)at the

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The closest distance at which an el*.x*tdrq .xo by- iyxma-o.p6u:-kwye can see objects 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 objec*5ozjrms)( lqts clearly is

Correct Answer:    
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Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too long from front tk8b25z,v sbgto back, the person is likely to suffer fv8tgbs bz2,k 5rom

Correct Answer:    
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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be colkvx fi*4+8rj/ m0dra rrected 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 long from front to back, this gives rise to, s 457 jql9xepb.ymer a vision defect that can be corrected7 ,ljeb 5q4sxe ym9.pr by using

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too shotm; )x ukx.4fort from front to back, the person is likely to suffer xkxo .4)tm uf;from

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually be corr)23n: :d vxckk9 4a brmr-flhwected 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 rirstqt vodtjy7 z2 tep,c (7t:jb7 8/;xse to a vision defect that c zvd8:yx72 pqt t7( t;c rjotbsejt,/7an be corrected by using

Correct Answer:    
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Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magnifyinrgg p 0be-fj58-7pbe)n 0) f acvzvg2ng glass?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very large diameter oe,bgd75 -bayjlhi)oz92-a l rbjective in an astronomical-,75beg2 9i -)hz roa bajldyl telescope is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a refracting teleo(df g-u477jl3odfexscope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effe 47uj(of-ddo3 7xlfg ect will this have?

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used:b y:n,blq-yr8:r /z 1gqzxnx has uniform sensitivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The lens referred 8-ynb :gzrnl1,qxr: zybq:/ xto 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 6fk osx yk)z- 83:v(wxzehm2h has a magnification $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification?

Correct Answer:    
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Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  With what color light would you expect to be able tom1 k-e smot-2s see the greatest detail when using a microscope2k1-o esmstm -?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffeoj a u j4rxca6a 9w8.pzy(c:+dww.e-er from

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suf*8cnvc b91 jkzk3yu zgj :pdp.rsu;,ly)+ q+dfer from

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microscope refers to thud 73mcdrfiz(n;.iptf+ 1:hre ability to

Correct Answer:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the diameter of a radap2ez38 6zfny0d2vu rjr dish is doubled, what happens to its resolving power assuming that all other factors remain unchanged? Its resolvi rv0zu6 8ejpyzd32f2nng power

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A near-sighted person has a far poin .gn sj(ci u(vm4d*ax+t of 18 cm. What lens (in diopters) will allow this person to seem( .gj v+x*dusi( c4an distant 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 dyq) copg0:hnjdptm89ap fi+qe:1 8/ cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm 9i+h 8qg:dappmf /cn 08op )j: qtedy1in 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. y/-e;vl). wo4xw) webbpa8ly What is the person's far point if the gb)x we4 /bvlpoa; lew8w)y .-ylasses 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 farsightedness where the uncor3w)c/pfm9 g:vitjhm v;ds 9 +drected near point is 75 cwmg mi;hs :f 3vct)jvd/p99+ dm?

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 clomw++ xwa/ dlhoq5v:h ,se to her eyes, and with them she can comfortably read a newspapo +w+,al/mdxhqwv h 5:er at a distance of 25 cm. What lens power is required?

Correct Answer:    
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Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A farsighted person can read a rhi0:dx twr ztnm2*4- newspaper held 25 cm from his eyes, if he wears glassw 2 :*-40tzxtrdmih nres 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 persok;:otld bi, us -hg4p8n has a near point of 25 cm. What is the ma,soh:gd4 -; u8ikltbpgnification 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 pe af 0htbm3v4a efqzqeprl1z. 3.v( nc7l3h8b0rson has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at their near pointz qvnaq0 pe .3z3.3 hamf ll c(17b04v8febhtr?

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.ci1 +u) 2aofda What is the magnification if the image is viewed by a relaxedc)dfui+ 2ao1a 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 g5d8a/tm p qz+m6n3ojblass. What is the maximum possible m apqtbjm6835 om+/dnzagnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging len 1pfbal0kig 2+ *szx7ls of focal length 5.0 cm as a magnifying glass. What is the magnification if the person2 gplfi a0 zxk+1bs*l7's eye is relaxed?

Correct Answer:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of*b7rx2 3lfg0v c3ojq2 e1t yup focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use any twp tlbx*7vr13 eqg 2 230uocyjfo of these lenses to build a telescope, what is 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, 4.0 cm, 8.0 cm,6g yq9 hc9bw7u and 16 cm. If you were to use any two of these lenses to build a telescope, whacq6yb9w g9 uh7t 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 length of 200 cm and its eyepiece has a * vibr5/z-s6vq r)xxk br6q )rz/*-sk vvix 5xfocal 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 with a magnificatjpb ohg7s87 l xr4ea6).pf+pqion of 10. If the telescope 4jh pb sxpal7og7.6eq8pr +)f has a converging 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 magnifice(muv+)6mg 5ickka sz(g 8 bx-z-t4/e yjoi6 wation of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting lengs vweko zge()gia- c(/6z -tymubji4+8xm 5k6th of the telescope?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person is designing a 10pldd *x8q4 a(gX telescope. If the telescope is limited to a length of 20 qg*8l (4ddxpa cm, what is the approximate 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 length 1.4 mm and an eyepiece of f3jj nzd mp-rah+8v 3k;ocal length 20 mm, adjus8k3jv jpm; + -nzahdr3ted for minimum eyestrain. 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 obk2t a9 py(znn9jective lens of focal length 1.4 mm and an eyepiece of focal pzkn yn92t9 a(length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. What is the overall magnification?

Correct Answer:    
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Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has an objective with a focalyp5w+szxx .odx14k8r nm)/c w length of 3.00 mm and an eyepiece of focal length 6.00 cm..)spdmoz1xwr4cw +yx8x /5n k 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 wilm7eia g3j9a zi+s3 5qth a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnification of s9aq 3la 3 mj7iigz+e5240?

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 angulakpq5o2my y*g b, (5jcdr 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 resolv(d5opj k mb*q2cg,yy 5e the two stars?

Correct Answer:    
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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 cgsd0a8l n3+yapart. If the focal length of the objective is 4.0 cm and+83dcyn0sa lg 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's eye changes from a diameter of 3.5 mi(61n 7hq. u o--wdwsbpwajg;m to 1.5 mm as the iw(d7s ij.- w nab-qp1woh6g;u llumination 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 Space Telescope hao,152npafd cx7ho/n us been placed into Earth orbit by the space shuttle. What angular resolution couo, hf2uo1 cannp/7dx5 ld this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
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