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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 thmih 2sut; r 2m19 x;+xdrcw5ode shutter is open and the film is exposed in a camera is determi 9hcu2;mito wr1x+mr 2x ;dsd5ned 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 camerkr07ci za,* z)t; zttea is 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 vargff48 w4y2z0wry ;yrqied by sliding the lens fo yywg rz48rf2wq4f ;0yrward 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 that corresponds appn2im*hf fd: unl92k/n roximately to that of normal visiou ih :2ff/2k9n*nm ldnn is referred to as a

Correct Answer:    
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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A camera lens that acts like a telescope to magnify images h+lda t(c5y8 ris 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 t kjfg b 3xx.8xnh,m2o;r5eul3 6pi7pghan that of the eye and through which objects appear smaller is referred tg6xr2oppnlhekx38 gi 57f u. j3 xb,;mo as a

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In which of the following ways is h58f/enyy a2wa camera different 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 ofoq0c8rynq;fs: jv.k 3j8(1ybjio. po 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 objects clearly isfzkbus iy/+u z.ox*e:ur 1p-4

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distance 8q glm2wbp70 uuy-.swat which an eye can see objects 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 to back, the person is likely to mw-b.gfn1(qic9)ki * scv9,f 4b zl nhsuffer from( bvnc,zw.q1m 4i9bnf9 kfg-*) slchi

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be a nuc :ar6x*7tcorrected 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 ba88fz.kaw vt/wuu*sr /ck, this gives rise to a vision defect that can be corrected by usi8vrtuaw */.f kz/8s wung

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too short from fl(.hjxabm(:uv - who9ront to back, the person is likely to sufferaxl:.vhb(om u 9 w-(jh from

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually beeg:qen1:z7. fs ;h3v ywtuom5 corrected with

Correct Answer:    
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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too short from front to back, thwfb atc40* v.;bybl -nis gives rise to a vision defect that can be corrected by usbnwl-a ft.0;cy *4bvbing

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magnifying gl 6bru(ajzyw n)c-2ag1ass?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very largwr;7)bilz6 a ue diameter objective in an astronomical teles wai)b7z;rul6cope 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 ref6sawc m2u5hm,6wqqfu tx(46 mld8c 3i,z fw g0racting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effecwiwqd6mcufh4g 28fat w u0 c,36xszm6,q5( mlt will this have?

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used has uniform sensitivitbtzcau.9960rz.wb s a y 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 to is the objective lens of the telescope used.b u69a rzz.s09w bt.ac)

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A refracting telescope has a magnificationukrf2kt:/ g sy f-2l2u $m$. 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 saq+;7feim v 6jxid na9:q 7:sthe greatest detail when ua67xisdn i+ :v7qmjfeq s; 9:asing a microscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer fc/er /3 6zho9py m/udrrom

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffer j ow(dbu)d+n4(bd x (tp:y/kifrom

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microscope refers tgrno - 5:c tk,:yhaob:o 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 happ (l26uni y4cvqens to its resolving power assuming that all other factors cn 2vi(yuq6 l4remain unchanged? Its resolving power

Correct Answer:    
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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) w r*bzmtdm p283ill allow this person to see distab*rzd2m8 3mp tnt 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 cm away. Whf2dde0( abtc6at power of lens should be prescribed if t (2c0d b6aetdfhe 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 wears glasses whose lenses have power of -0.15 D. What(/ s ,yzjelal0 r.wwz- is the person /zjz a0sewly l.-(w,r'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 corrd lilnr1/62s zo+ yau)ect for farsightedness where the uncorrected near sr1+odlzau)6/2 l iynpoint is 75 cm?

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a fa 9 ty-z m2w7:utgje+itrsighted person is 100 cm. She places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a 9-:j7mtyuiw e2t+ ztg 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 nppyt9 yf0p3g6 ewspaper held 25 cm from his eyes, if he wears glgtp 9p 6fy3y0passes 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 hassvw.orsnct rtlc 6 36ae(*(;c a near point of 25 cm. What is the magnification of the l;6v s((lwcrs. ct63ret a o*ncens 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 person has a neat8s- o5p k4sa,vl s(kg*6uw emr point of 25 cm. What is the magni ,5gw6s soets-a4kulp(vk *8 mfication 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 /l sx)1fan)z3 am1tmfoy1+lg,s-e ed focal length of 7.0 cm. What is the magnification if the image is v s an3,m )sl og)zmydt1+11f a-eelxf/iewed by 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 lv 1 pz 0p98-x3qgtwboas a magnifying glass. What is the maximum po3z8x1 v0gq b-o tw9pplssible magnification?

Correct Answer:    
Mark Problem
37#
 
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. f)oi qzlt0l.a nfv0tn2:2:lpWhat is the magnification if the person'sq l:2 i00al). vo:fp2lnznttf 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 lengto o oil7*ryh bo.26tuzr.4) jahs 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 mz)jiaoobot *ror6ul2. .h74y agnification 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, and 16 cm. Ix 6s2hpl- ro8df you were to use any two of these lenses86 x-ord2s lhp 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 cm and itsbdf+duusoz3)* +d 5g g9yiihyw3(0xy eyepiece has a focal +ighdob35 0 3y i yfwuu9+g*)(dzyxdslength of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

Correct Answer:    
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Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical telescope72lckb/kugm suh+1* k *fb 9il with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal l*lb1+9b*c ku7k2lgfu/mh kisength of the eyepiece?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical tcji, exe aj; y;4,gx:aelescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the rgjye :x,aa; 4c;eix,jesulting 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 telescope is 2fl: n9nb qgukjgy 0p3 b-am+8yil/i4limited to a length of 20 cm, what is the4yl/+anb8g0 gyqfk bi :-numpl3ji 92 approximate focal 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 anc +od08.vw7rys-t xl ad an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A bloory8 +- s.lwxv0odcta7 d 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 length 1.4 a4pyd)6+uibl mm and an eyepiece of focal length 20 mm, adjusted for minimu bla)i+ upyd64m 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 objective with a focal yqw-h3rh4-w ;/3m9 q ihgtkky3fkm; zlength of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated b;33y;z3h/y gq9qw h-i4 fw mrt hk-kkmy 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 bay/, nhbqy+j (prd 1mru58g*+yp5 nhvw pfc j13rrel and an objective with a focal length of 8.0 mm. What is the focal length jcbnh q+( + fyyy311vnpgrup5jd ,5w/p*m8rh 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 thyu(8is,xoz y i2r 1mh,e constellation Orion has an angular separation of 10-5 rad. If the wavelength of the lu1oz,(x2yr ,is8 iyh might 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 objects which0ristpp h ;9y, 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 ;rsih9yp0,pt 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-sa.r-re o11z9 z mzec.5 mm as the illumination is increased. By what factor does the minimum angle of resolution ch9 . --eezzrazco11ms range?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The 2.4-m reflecting Hubble Space Te*kfijue6k- jw :rv xyi15v )r;lescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieveyivej;ifj x5r- 6v*kkr 1wu: ) if the wavelength is 500 nm?

Correct Answer:    
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