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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 c,b-piz cfv bme0p4:g l5p a3+aamera is determi4bl30agpipfpe bm-+5c:z a,v ned by the

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 i 6-dsdpct 26zan a 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 camera the lens-film distance m nzzmen.09(cof2w fx6(gch9lay be varied by sliding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is oo (cm90xg2nz6fcfel 9 .(hnzwbtained, 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 x+oyp-u4z2kp ffi ynh)2u+bn(h9b l+ view that corresponds approximately to that of normal vision is referred tohb+kf2yypu(+2)l9ixpz-4n+bhuf n o 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 i9l qm44.i fyyimages is 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 fil zza39fv13 grjlle6 t+m with a wider field of view than that of the eye and through which objects appea+3tr1ea z l9j6g lzfv3r 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 following ways is a camera differsdwp)ja m(lg5 q1qs+f *t/y(qent from the human eye?

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refraction of light b*cxcom c k7yb04*z1djy the eye occurs at the

Correct Answer:    
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Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The closest distance at which an eye can see objects cl l84ent 3v m:y.j2kczqearly 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 ocisiiv 7) 4zrp3mx c28bjects 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, sb6w :tj8 mid+the person is likely to suffer fromd8+: jmb6i stw

Correct Answer:    
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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usualx n/mnv qzfkr,3f+q0 8ly be corrected 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 gives rise u)mb0te8 y3 aaa7ebd 6cs-m0w to a vision defect that can be corrected by usinse et8m7a 60b0bcdam )yauw-3g

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If a person's eyeball is too short from j pgaw9dc8 :o-pel5kl a(1,nefront to back, the person is likely to suffeka (w-dagc9eneoj,5lp:1p 8 l r from

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually be correctedp;dz u7zms *l8 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 givesluegx9 6;n6 ).scfsz n rise to a vision defect that can be c669eslcs.fgn nu) z;xorrected by using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a pq27.k,yrev b magnifying glass?

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very larg g(y)9n(p ( ,vphx7chfev,xcle diameter objective in an astronomical telescope ,c np7x)(v 9fe(h pg,(chv xylis

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 o cjiphzki+25s2*0awa paque screen is placed in front of the lower half of the objective lens. What effect wkhsa2j *5ap zcw2i +i0ill 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 sew yyon 4sf8(;gnsitivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish benf4 ysw;oyg8(tween 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 telescosv.jew+damp 531q8ql pe 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 youqz xd.dghd201v9n n m7 expect to be able to see the greatest detail wheg xd zm07q1dhn92ndv. n using a microscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer f3(yjvjb,:wg9r9o+bt 9 fiucr rom

Correct Answer:    
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Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffer fromol57l c+mhbtpxh:2 ze61x( ebbk9 v;g

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microscope refers 2pi6m n-xjc e6qo3c zdb(.h r0to 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 tj a(0u* q i turpw(hys9v8a52vo its resolving power assuming that a (qpywu5t0a 2(j rav8h*9 sivull 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 (in diopters) wil3px; 3ga t0acdl allow this person to see di 3p;a30t gxdcastant objects clearly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly ob 8ny(rs ;l3wabjects more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.0;l nsy8( bwar30 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..* 3s38iictci54virjiob(, r7ec qs l15 D. What is the person's far point if the glasses are t v .3i84ii *c5o( scr,rjscb7lqei 3ivery 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 farsightedness where the uncorc my2d0l(hpz)rected near po2d(c0ylhpz) m int 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. o9ktf2p 9oe *- rha/lbShe places reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is require 9oft be-2/plakh 9ro*d?

Correct Answer:    
Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A farsighted person can read a newspaper hebu)ekpx:kq 0 tlqi8hx 13g( t)ld 25 cm from his eyes, if he wears g( 3qli)b: tx8k01gehtpuq)xk 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 focal length of 10 cm. A person )2+xr areajq 7has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at infinitra+e) 7rjx a2qy?

Correct Answer:    
Mark Problem
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A magnifying lens has a focal lcdjm ,pt5 f:4r6j v7l*7p+ x veum5jhiength of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyes am4p55 m*6rv+7f7j:j ,ltd exc puhijvre 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 magnificatdu2rv72 swg3ur ,h4ey i;(lyja+9xouion if the image is v4gu swhr2oiyy,uv;a9 j7dl3(x+ 2 e ruiewed 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 lenae v m77xb/m-rgth 5.0 cm as a magnifying glass. What is the maximum possible magnifica a7-v7m /rmbextion?

Correct Answer:    
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Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of fi)e(kosi w s i- xu:r3).sg+zcocal length 5.0 cm as a magnifying glass. What is the magnif. skw+ :ucs(eizg)iio3xr-)s ication if the person's eye is relaxed?

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, 4.0 cm, 8.0 cm, and iwv 7gzr gr,,0mru)1f16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnification you could mrwr ) g zfi,17urg,0vachieve?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of cmm)*kmy .t6xcxy 73 ufocal 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, w 3tmmu 7mxyy x6kc)c.*hat 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 h mcz4v93 ,. na)xqvfbeyepiece has a focal length o4x ).ahqmvzv cf3,bn9f
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 hsb.89vf7g tb astronomical telescope with a magnification of 10. If the telescope has a convergigb7 9h.stfvb8 ng 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 magnification of 10.auixt, *f: -p0m7vwq7k2 f fni If the telescope has a converg*-,u pa w2fin:7fix7tqk vf0ming 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. If the te7z,ct19x-p mogsfe 5alescope is limited to a length of 20fgm5c-p o xz9eats,7 1 cm, what is the 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 focal2c**;q azwcgqc2ntc( s 7 8kgze0m w-d8:f ylv length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain.eg8cgw(*8sn-cq7:qw;a0tv l2ydck z f c 2 m*z 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 object)d,+thbj)m;cz ) vbvtive lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood savtmb;)h) vz )dtbj+, cmple 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 objectivex+zn h,b 5:nor*cffr 5 with a focal length of 3.00 mm and an eyepiece of focal length 6.00*bor: ,+xncn 5h fzfr5 cm. 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 a9 si*o 0npzdm6n objective with a focal length of 8.0 mm. What is the focnd*i 6ms09o zpal 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 angulalq 6n;p3tl7wq y6.k y/.l ql:oa*f b *z4agrykr separation of 10-5 rad. If the wavelength of th4yfkkyt.:*;oql/*pnb6q llqw6 3 agyra.z7le light 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 object5. u zkzmvg ec(lf+:;ss which 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 is the diametermg; fz +5lksc.e:u(v z 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 1.6h (cf rq fv.r)yni :bk ep/06ia2hnn/5 mm as the illumination is increased. By what factor does the minimum angla rk(:/h )vy 2nb/nc.6 hif0fpriqe6ne 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 placpq am/21t/ zfged into Earth orbit by the space shuttle. Wha2f1//mp zqatg t angular resolution could this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
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