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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 ss c,8c:kbwk .khutter is open and the film is exposed in a camera is determinebwc ck:k ,s8.kd 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 i;yqg g)cz/ r )6)rhpnvs 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-filmaeom-w t5--p.+ tgeyu distance may be varied by sliding the lens forward og m-we-. y5et+t-pua 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 cqlhrr ; mxw256orresponds approximately to that of normal visioxq l2r65rh;wm n 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 1z)mcu l lk;ivn40p4 dis 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 view than that of th-zz/po d x 5 3negm* a+yccr3n6)rxqd/e eye and txgdae3nr6cxz q dm3y- * z+/5n)c/orphrough 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 w p.o, 40+9dfrhc kto7t tpr0usays 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 the eye occut5aw,xx2 mmp3) /j) cptyea,srs 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 cllcl. /(z,ex3 z7c)el7do h bn2gcy qmk(u7y5 aearly is

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distance at which an eyeu)g 3mi m1r(sb can see 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 to back, the person is l*tho pzw8m nn+kq/c .5ikely to suff*c moz5wt./ k+nq8 pnher from

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usually be correctedxn+dads(o/fod5+7 aks. y 8sa 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 givv pcs780c*kre es rise to a vision defpsk c 07cr*8veect 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 eyeball90w0w h rib fb59zes8h is too short from front to back, the person is likely to suffer fromhhbb9 9iz5 rw80s0ewf

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually be corrected wi5;/p s ab .qgsxjwez;*th

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 give:eviw:2)v jo:gschroq 7:3k q s rise to a vision defect that can be corrected beq23ro ivoj7s : c:vqh)kwg::y using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magniwp*yja7,6bj -x m9j z2ao8u4g nt8tgdfying 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 objective in an, (6a(un+m r .ov*bi2x etotso astronomical telescopetv n (, *robou6m+xoai2t(e.s is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a ref7. uywfl3 .rfvracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will this have?uf3. w.ylvr f7

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used has unic4fupi 7,czwrpo -/q ),gc; fqform sensitivity throughout the visible spectrum, in w/q, ;c)w7 pzfciq opcgr,f -4uhich 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.)

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A refracting telescopen3kvjxk( +s1r 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:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  With what color light would youe y7xxdqc5/*l expect to be able to see the greatest detail when using a microscocy*qe dx l/57xpe?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffxpe 24r6u 4lbgxh81x oy3 7igver from

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffi-s g s97+v l+x z*a1b3qywat:byqh)9 stuii0er from

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microsconv.; 2xbqod9e1-pn tuqf8n p3 pe refers to the ability to

Correct Answer:    
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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 its resolving powerj8mug*q4()+ ygustqlo mq) u( assuming that all other factors remain unchanged?m*)u q yglqu(+sogu)(qt4mj8 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 , qahtqt k+.y) zqjp3518 cm. What lens (in diopters) will allow this person to see dist,tyt +hq zpkj5 3qaq.)ant 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 atjfjm i r4v cw 1,+pt(9xxqi60mbga4 2way. What power of lens should be prescribed if the glass is toqmt(c9j+jigwmxrb6 fat 4, 02xip 1v4 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 glassekwb3 yp9x5b7ks whose lenses have power of -0.15 D. What is the person's far point if the glasses arewkk bp75b 93xy 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 9*9t,cbv ppt zcorrect for farsightedness where the uncorrected nep b9,p* vztc9tar point is 75 cm?

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 c0luf 5fsfrhlk7aqz(+ e,k08g lose to her eyes, and with them she ch0rz(q e,0su+lgkf78k laf5fan comfortably read a newspaper at a 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 newsp;o v70nopt3.*bm uynj4py sd6-* of tdaper held 25 cm from his eyes, if he wears glassesoytd*odu7fjs t. 4-3pn vb;yp06*omn of
+3.33 diopters. What is this person's near point?

Correct Answer:    
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Mark Problem
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal length of 10f( mad 381gec8m+nn qb*naf(kr l6s q7 cm. A person has a near point of 25 cm. What is the magnification of the lens for t(b1a6saq 8r(c3ndn g8flmknm7e+q* fhat 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 bzk kibb7j4 qp+vh53 )near point of 25 cm. Wha)hbq3kbj b75i +pvz4kt is the magnification 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 magnifica 6m.fe a66 jn1g48l (ijp6skd l1j.tbo okxfw3tion if the image is viewed by g61esjdjik3mf.8w1b66toalnl4. (pkfj 6 xo 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 magnifying0vg 7rt0e cdp n+cc ogd170zv/ma gk(+ glass. What is the maximum possible magnd00c0tz7 7r gkenmga og( vcv/1++dp cification?

Correct Answer:    
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教师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
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of focal lw;-gksq92h agength 5.0 cm as a magnifying glass. What is the magnification if the person's eye is relaxed?k;9hg- swqga2

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, 43jv7u y9 5 b6 gfuqp)kq,bbcg/bpow18he- f)d.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 th c5jobk1p7b6f /- ge)u3y)ufbdgw qh9vq8b ,pe maximum magnification you could achieve?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses 7kevxa3a7ad 2anm.cuh36;,yee3pyr i qu z- 1of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two of these lenaa3uynyv-kc ;xh6a2dmz 1 u e3p.3 e7q,ae7i rses 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 ab 5av2)eo4x7x bcgy0 0fs03xdq cs.u und its eyepiece has a focale)4c05uu0y7xbxq cs.dgsao0 xf 2bv 3 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 qw- ihwun/ry .a.o5jq :u85 cz10. If the telescope has a converging ln : r8u./wqi.o auy55 hc-wqjzens 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 magnification ofd7s mew/o(; +mjg*)g,c.ptlt wg+ iuv 10. If the t gwj*m tio;+sw gpd)g, (+l7e.tvu/cmelescope 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 telvd7 ja pa752cob 3ia)bescope. If the telescope is limited to a length of 20 cm, what is the approxima 2j)iab7cp 53aobda7v te 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 and 6dpp/,mk (igo8,/ cmouw:olj an eyepiece of focal length 20 mm, adjusted formj,,/6uw m8ocgol (dipp ok:/ 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 objective lens of focal length 1.4 mm and an eyepiece q6b9:dazr vqxf *,p*t*+ded v 6t(pzx of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 d* pqdr 9 vx*a: *etpd6v+ 6zzqf(,xbtmm 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 obj skc(y-9la q,pa nvt6m9sjc,hrwj*: 9ective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnificatioa6cw,v atss, (qjr9-: 9mkc*y9plh jn n?

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/,o7i mdy9wn dn-im 9ot*yt*h with a focal length of 8.0 mm. What is the focal length of the eyepiece to give d/ o*- mdo9* 9wt iyhmy,nnti7a 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 a)+s.zgsdg1pv n angular separation of 10-5 rad. If the wavelength of the light from the system is 500 nm, what is the smallest aperture + 1)p. gsdvzgs(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 objectonz64:x/zd uxsyi q7 oc6a. wd-e:-cb s which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the -b iz46cz::xoda u w xd6qy eson/7c.-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 mm to 1yeg-wf- m694qzrr: en.5 mm as the illumination is increased. By what factor does the minimum angle o-:z -em nrqfyr gew469f 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 placeq; u,aacpnjozw t703*d into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavca ;0, uzpo*7ta qjwn3elength is 500 nm?

Correct Answer:    
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