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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 cxp,gbx:qbh x+ q ++0maamera is determined bhp+0mq ,gaq+b: xxx+ 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 t 3* wzxacnnx/re 1:k 9k3tdxj3he

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a single-lens reflex camera th-veo :xa0a l lv*;tu:r:3kewde 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 ;e3 k0l*-r:vew:vlu dax: toa 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 that co1io,v qz8j w+brresponds approximatqb8i vj+w z1o,ely to that of normal 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 telesnj6h xng6g-++isk 3o ycope to magnify images is referred to as a

Correct Answer:    
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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 vim q:;5kp/p n,)t43jygayw mzmew than that of the eye and thrk;mq4mwm:z)nyy tp ga,/j35 p ough which 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 follow1ehi 7, 49dig1k eqpfhing 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 zgxl, 1+0ecqm 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 obj3c+cbhqjxcr ( m6 k0e;ects 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 see25cx l(tblbg93 z68 y(zo0qj oyaoa,y 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 tk am) 1qv-vmcdh)2 2uco back, the person is likely to suffer from 2m)) kcqvd2cm-h1auv

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can uvuaxpww tgobbb*kx * 76*,(sre3 d* h0sually 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 is too long f m,msj8 f**tjwrom front to back, this gives rise to a vision defectfm8 , ws*jj*mt that 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 t b 2vle-fs7 ,fsfr60kko back, the person is likely to suff s7, f2v0ef kf-bk6slrer from

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually be correcte.mh5j; ygk3wnd 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 syoibj +60r1j aj, .segives rise to a vision defect 6j.j+i1ssobj, aery0 that can 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 magnifying gla(vfdruac- q.7qy y+7u xpv.y4 ss?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very largdo1he/2 pl8- m4uf bjqe diameter objective in an astronomical telescopem-uej bq4 hl/o1pf28d 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 an opaqv * jps u()z o8-zcvunv65mo1bb3b.jvue screen is placed in front of the lower half of the objective lens. What effect will thisb svnp) voo3zbvu.5*6 ucb1z jvm 8j(- have?

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film usedyg(( jg2eisz+ has uniform sensitivity throughout the visible spectrum, in which ofz (jyg(sg+e2i 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 has a magnifiqz6dgj+z8 d; zcation $m$. 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;ijsitkt 5v+(ym9s ,gzsq 0q. greatest detail when usi zytqs .5i0j;viksqtgs(9+, mng a microscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer frc 4pmer69 nyf1h* gg8ghz9t(som

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors sub4yb3 t bx )qdy-6mx7pffer from

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a3 w(,urq7roem 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 doublg+9cdc su d9wvw. ejpvz(738aed, what happens to its resolving power assuming that all other factors remain unchanged? d+3vcz 9 cp eju8sg. (7wawd9vIts 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 18 cm. What lens (in dioptxu); hs/2 d),1j nocdr ltv7upers) will allow this person to see distaxtr un7ls o/)c1, dj)vdh2 ;upnt objects clearly?

Correct Answer:    
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Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clear9,0d3 xtjbfxq ly objects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in frd 0xx,jfb t3q9ont 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 gl) 4l7ghf2ncey- l) zylasses whose lenses have power of -0.15 D. What is the ph7lgf z ln)e2cl-)4 yyerson's far 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 fl(v hhj,xtb87 or farsightedness where the uncorrected near point 8 hx, lb7v(htjis 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 farsightea ue6o/e 9l rgqq*+u5xd person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 2aeql ge/u6 q*o+ux59r5 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 hiz+/.zj ca c4gzm- .qjiex0dw0 g n5gq1s eyes, if he wears glasses zw.g-egj5qcq djxzgm10/0n a.c +4 ziof
+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 pe -vl3t.h*djg daag03 drson has a near point of 25 cm. What is the magnificati 3gdg*d a.t0jl vh3-adon 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 hahburhb-b7 ea-*- x z6fs a focal length of 10 cm. A person has a near point of 25 cm. What is the magnificatfr bz-e- b76h-h*uab xion of 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 fobx l.b q;nqc5mgua5 guqk/6 31cal length of 7.0 cm. What is the magnification if the image is viewed byn6c/bxgk.lb5u1 q;5ugm qa3q a relaxed 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 glass. W ;isr:h0 c q+a :nrw:n. bd(/tv-bvcjihat isv r(0ic:w:t;ncdjaibqv. :s /r -n+bh the maximum possible magnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging le47 .+lhzy.xw uelf0oyns of focal length 5.0 cm as a magnifying glass. What is the ohxf.zluy+ 40y. l we7magnification if the person's 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 foca:g;pcr7 kgw 7ye:mys 19r0zbll 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 the maximum magnification you could e y;ly7g9 p7w1rsc :kr0g:z bmachieve?

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 lengths 2.0 cm, 4.0,1 0y45 cuzqu1 jftdk4tsj 7stb+ b3ey cm, 8.0 cm, and 16 cm. If you were to u1 03e+ssc4ujdkz5fb,ytybtj 4u q71 tse 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 focal length of 200 82+upp bir1f.oxui8 1 dsf/cn)5qpu qcm and its eyepiece has a focal l+qpq1uu 851i 8pfd)icuxs. r2 / nofbpength 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 magnification of 10. 7j(m7n fnqhcq: w.eq- If the telescope has a converging lens of focal length 50 cm, what is the focal length of the qmcqwf hq-(:je7.n 7 neyepiece?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical telescope with a magnificatip2tdkz*wz m.u;d1w9k/mm3 mh on of 10. If the khz.ww k9 pdz2ud/m*t m13m; mtelescope has a converging lens of focal length 50 cm, 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 telescope.6jhqpls , uk -.e,+i/ye g(ozt If the telescope is limited to a length of 20 cm, what is the approximate focal leng jl. ye-,g+ik(es/t6u p ohz,qth 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 fovxm6 r6w u.9h5ymy3zj+mtz3g cal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far apart are the uz r369m6wy +5hvy x3 mmz.gjtlenses?

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 eye/ 5,p5ctxjsbvc 3b/gjc ibi07h44f wppiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the opb xc4 b75 i/jc0wg svbh5ipj/4c3ft,bjective. 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*)jwwy:c8w7a9w :boog7zn e j of 3.00 mm and an eyepiece of focal length 6.00 c7wbn: g*woce 78wj9:ajow)zy m. 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 with a f0u1ptpktenbul0 m-y6 , .xkl8ocal length of 8.0 mm. What b1k, u-t0x.y6ntpu 80pkmlelis 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 )yu5nrw0gyq+ h16zm)rigrh8 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 resolve hg) i0y 51gwrz6hqy 8r+m)nruthe 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 cc7vq2r8plukc3vz 5; which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 557pcu vq2cr5 8c;l3 kzv0 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 mm to 1.bd2jgk6 )5zf nmnz61 m5 mm as the illumination is increased. By what factor does the dg56)z6m1n z mbfjk2nminimum 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 in)e4,hu )cgvzg to Earth orbit by the space shuttle. What anguc))4z ,hu vggelar resolution could this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
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