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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 t :u/lrx(4 nc;0rc wqwvhe film is exposed in a camera is determined by thewvr cx;:uwq 0c4nrl/(

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 ah 2 5aaai5voi)ej (7 wm02z. e8. h0tvenzyhyc camera is determined by the

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a single-lens reflex ca;:)*gkd7wv0op2n tbtk4sr c ;+eqkam mera the 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 pictuk ste nwgk;;ra: dmtco4+b0p27)vq*kre 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 w 6g ywoq(/bm(aith a field of view that corresponds approximately to that w(/y(6qma gb oof 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 telescope to magnify images is hgw ,ym,l 2:eireferred 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 4m9 wztmu;s f8x8,ald wider field of view than that of the eye and throusz;4ml,9xu fm88 wtdagh which objects appear 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 qr/:.vojc n1l yk. 19fw7 azggcamera different from the human eye?

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refraction oo/ lx4n5i tmo;f 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 whia fv0oct0w icop*g* ;1ch an eye can see 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 o.j9; j v:fqa)ffnr0qubjects 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 to back, theh7;myeq/+ hqb4r ez0 m person is likely to suffer from/+ ;4hhy0e 7ebzq qmrm

Correct Answer:    
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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be corrected w,a )nzex vu1r9ith

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is too long from 0 ddh eq,t9:.uj4z.7lqh p71qidrifmfront to back, this gives rise to a vision defect that .dpftqqdiuliq,47:01rmhze j7 .9 dhcan 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 back, the person iva/e- tbp*d.k iqhbo4 a9,rivp+ 3s j+s likely to suffe, -it.vepq*/ +pjad 3bk49basv+hrio r from

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usuallo9 -e *onijn y44xlvv8jy:z8 ly be 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, 1q0rxzeg (d4t this gives rise to a vision defect that cant 01xegqr(4dz be 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 cjij*9lcd )01 a0qgnqglass?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very large diamete+8 c8 6urdyqj o9pld ac:4c.whr objective in an astronomical telrlp6wcu8j 8h9+:qyo d4.cac descope 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 telescopc( be ns g --+2ct- ;s:7uiwuecdz9myie. Suppose an opaque screen i9 eu2msu-;cdgytscni- +w( 7iz ceb :-s placed in front of the lower half of the objective lens. What effect will this have?

Correct Answer:    
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Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used has uniform sensitivity througho(0n8u8qpf(1nly shu4s r/yqt ut 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 telescop q sf0ny8n8rqtyuh4u p(s(/l1 e used.)

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A refracting telescope has a mag+hlqm im3ue l,t(s ;s+nification $m$. 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 jd7fv 5gmw 81dh* nz(iwould you expect to be able to see the greatest detail when using a microscop(i*hz7vd w8nf 1j5d mge?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer fbd; j/hl+5 /vmv jvu0orom

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffertcmlidp 6izk,.26ei)v qk;ibr ()yswzf( *j1 from

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microscope refernivd * nhz w,c78/gdqcv81 k+h37nyebs 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 3mv 8eodd,m dg k/z3h(its resolving power assuming that all ,8okd /gv3z mded(h3m 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 18 cm. What lens ju ashb*gv 7dof)2t02 (in diopters) will allow this person to see distant objects clearly d2tu0jb* 7a)fvs 2hog?

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 ilr 2s;2/7d:0hnz jcs+.wpva: uowa qcm away. What power of lens should be prescr la7ovc/ ;q wi2d.zph+r:nw2ja:ss0 u ibed 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 wears glasses whose lenses have power of -0.15 Du m4iopx hudg6k1ma 5;qjv)33. What is the person's far point if p51 )m3 ugokj q3d6xvmi4h;ua 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 fammiz m:t2g uvs:c,wd6 8k,7 hb:w,irsrsightedness where the uncorrected near mms wwdk:z ic ,s,67m2,i:g rhvt:b8upoint 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 100 cm. ,xahr5 *vne+z2 1yiwkShe places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens poweryv 2r+eazwx,k i5*nh1 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 he3u 9i0li*t fd,lsv/ob wears gsl9* uiidl,3vo0fb /t lasses 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 foca3pefl+sq 9m 3dl length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that perso qf3em3spld+9n 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 haso9v6le mvkxui; f**de2a)+ gj a near point of 25 cm. What is the magnification+xoei )6v a2 k9jldev*u* ;mfg 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 focal length of 7.0 cm. What is the magnificatioi+7d 8oid bp6gn if the image is viewed by a relaxed eye?7dg8+ db6iipo

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lenf j956 r mebvb2w75cvms of focal length 5.0 cm as a magnifying glass. What is the maximum posrcb 5wv5m6bjefm7 v9 2sible 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.v*qzvc30 3rh/qlp 1tyyj2g1ic/jmc( 0 cm as a magnifying glass. What is the magnification if the person's eye is relaxe/ 0p* /ji 2v 1lycyjqqc(vh mrgc33z1td?

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.e9(xfgu5sc x buvn1 m-s4(wj20 cm, 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is (4 xj9(u1u-vsxn gsc52we fmb the maximum magnification you could achieve?

Correct Answer:    
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Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of 1obtoi+ ,cn4t focal lengths 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 telescope, what is the lens separation for the maximum magnification telesco ntioobc+,41tpe?

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The objective of a telescope has anm l(5is)fev; focal length of 200 cm and its eyepiece has a focal v ;s( mef5inl)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 magnification of 10tvvu3aeb4 jp)-szc 5qevm) ay+,:8mv . If the telescope has a converging lens of focal length 50 cm, what is the focal vvuqv)t5 sa:a4 -e3pc ,y8mbj + m)vezlength of the eyepiece?

Correct Answer:    
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Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical telescope wi1nmla0s9,wgy ;jlnl e -i6 m0la/aj-ith a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the result ml n-1ma ng0;aw-a6lj sll,yi/e9i0j ing 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 teler*4vs+ c )qugascope is limited to a length of 20 cm, what is the approximate focal length of the objective?r)sguaq cv4*+

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 lengt8l06 ndyzv2v wh 1.4 mm and an eyepiece of focal length 20 mm, adjusted for miv w8n0dl yvz26nimum 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 objective lens of focal length9 i5ey,sy,ent 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm f5ey,s iy,9ten rom 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 objectp6 g78a65 - 5o.4 wynnh2 jaohxkjldbqive with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two len7jagwpnaqox o58 .hdj-6k652lyn b h 4ses 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 3s eep c9,(7*zsk hb.yyxj.c ebarrel and an objective with a focal length of yj.*c h (zbk xe9.cpsys,e37e 8.0 mm. What is 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 angub r5rbs1hj7p c(iwp25 +z0x; gg0ksz tlar separation of 10-5bw(7pc; jphrsg kz s10gi+xt2rb5z5 0 rad. If 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:    
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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 apart.pu; .-.ja x8psoal- :x 7-i)ygxnk ync If the focai):-n asgxpyn-ox;yc7p-.kj8u xal. l length of the objective is 4.0 cm 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's eye chang art zm2s.4wk-o97 nshes from a diameter of 3.5 mm to 1.5 mm as the illumination ih9-s2 m.szton4r7w aks 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 Spacdqg8p kj 8sv-+/sm m,;)orjyze Telescope has been placed into Earth orbit by the space shuttle. What angular resolution could this telesqmrj,8g j kpv+ysd;m8s/oz-) cope achieve if the wavelength is 500 nm?

Correct Answer:    
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