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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 thehks8x vv1h3pn s6(t b1 shutter is open and the film is exposed in a camera is determinedbs(6 h k1h8n3v psx1vt 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; uq,(vi *acxr 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 ma-/tvznwxah h 7.s(de m2w (*xby be varied by sliding the lens forward or backward with respect to the camera evw*(td/hxzhs a w (b -nx2m7.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 f-uu8 sq;- fjvwield of view that corresponds approximately to th 8uu- -sfj;wvqat 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 telescope to magnify images is referred to as h,z;y4ce,scv ,xm4by 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 r gkfjhr b6 b fsa,ai*:;l*8htwb4*0h view than that of the eye and through which objects appear smallerbh4 :*f arrs*g0 f8j, ;hthb kwa6bi*l 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 camengju8p c59um,/6z(sg q(eapbh, ta+ura different from the human eye?

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The principal refraction/ oz xx/o8ca*wgm/+bw of 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- )adg63v3pt*o tptf s clearly is

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
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The farthest distance at whiwdl5n 9z2 7z -(unvcdych an eye 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 to kywj0y p7 7l7yc5dq0yo long from front to back, the person is likely to suff 0klw yyqy7pc507d 7jyer from

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
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
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usvy jl-u--: tjpually 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 froyn 26yg+c 1bdjnt to back, this gives rise to a vision defec2y1c6+n bgd jyt 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 toe q 1f-i3sb)bb di-yv)o short from front to back, the person is likely to suffev -eds)-1ii 3yfb qbb)r from

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
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
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usually f 84of8x,:qmed f(mlw be corrected with

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the human eyeball is tx- w6gu/0bnwbeh. ;c noo short from front to back, this gives rise to a vision defect that can be corrected by ushnb0-6;xewgwn/bc .u ing

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a magnifzu c2v4wlp- g5,mh6+oz+ux zrying glass?

Correct Answer:    
本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
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
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very larg23wi8nf9 6 or4aupys me diameter objective in an astronomical telescopm4i2f8y3wp 6a9 nsruoe is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image for/jswvs k du6nql.p8,em *9t)imed by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will this hav8n*s9s klijpvuqe)wt /,6dm.e?

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used has uniform sensitivity tg:toi2; ue4xh hroughout the visible spectrum, in which of the following cases would you be able t4; :ex2gi ohuto 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 telescope has a mn9 lt6l3ck t,0prv*v)acwx c;qprn7 )agnification $m$. 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 7d:q0j kobvp j2 bzk:6greatest detail when using a 6q0 ::pkz7 bjvojbk2 dmicroscope?

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suffer f*ujk- ur6+ieqrom

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffer fr eg7jkhm7b47 uom

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power of a microscopcqa,qm*ft s66zgd+ g(z u/x6f o -6geae refers to the ability to

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
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the diameter of a radar dish is doubled, what happekec 8. )iznpk+owu2: ons to its resolving power assuming that all other factors remain unchanged8p) cnzwuk .+ke:2oi o? 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) will acra 9.wd+ gh:h1jn;rtllow this :twnc ahhd j.;+1rr9 gperson to see distant objects clearly?

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person cannot see clearly objecvisz4bp 7 g+5fqu88cf . m c.buw*zq1rts more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cu8.vi5f csrpbqwzu 8. b14+g*qf7c zmm 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.z le pq :/3uaw)+kqfb1 What is the person's far point if the glasses are ver:kquae) p/+ z3qb wfl1y 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 uncicx- w 3.2v.qp.zo2bq cfh5 uworrected near point is 7c.v.xzp5oqw- f h22b ui w.q3c5 cm?

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a farsig z ekqr49hr6jy2 8kqv4sk-c s3hted person is 100 cm. She places reading glasses close to her eyes, and with them shs4ek 9sykz3qk 2v cjr4rqh-68e can 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 n72.y0b mvyn l(qe g bvaoy4)/wewspaper held 25 cm from his eyes, if he wears glasses of./ v7qgy yan4ey 20olvb)(b wm
+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 l dusl:2ohwb u) /h)g7ecx9vn*ength of 10 cm. A person has a near point of 25 cm. What is the magnil7* g 2vd ubhoh)/cwxs9:u )nefication 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 has a focal length of 10 cm. A person has a 8 lt85tu maf+onear point of 25 cm. What is the magnification of the lens for that person when th +5fao tl8u8mteir 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 foq5fb b* u;q/j5f5mi ejcal length of 7.0 cm. What is the magnification if the image is viu5 j fbqfjqm*i5 eb/5;ewed 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 ur j 8 a+sge wx)y-0udz+r9p+k)vy1laof focal length 5.0 cm as a magnifying glass. What is the maximum posuz) p+yr0kru)xs1g -+adayev89wl+ jsible magnification?

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A person uses a converging lens of focalk8 7pe7 xqct7v length 5.0 cm as a magnifying glass. What is the magnification if ttp 7ekxcqv877he person's eye is relaxed?

Correct Answer:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses ohqaj ;3c1ww e7f focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you were to use anyej1w;haq3c 7w two of these lenses to build a telescope, what is the maximum magnification you could achieve?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses of w7qkf2c1hi, zs/gv z k*c3*mjfocal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16 cm. If you were to use any two ofsz ifm27 v1hcck**zq/ ,3kjg w 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 cm ab mlapl -tktqa84 -9l/nd its eyepiece has a f4/8a-ltlm kaq- tlp9b ocal 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 thv8noo . ,d3boelescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of the eyepiovdn.8,o3ho bece?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A student constructs an astronomical telescope with a magnific;erba+rrn rw1 tl, :8zation of 10. If the telescope has a converging lens;rr+t8e:zrw 1r,bna l 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 telescope is limited to a lengtkjvg2w*h(tl pc5:o(w3h(xj gh of 20 cm, what is the approximate focal length of the objvj3c (gwtl2*o :(p5(x whhgjkective?

Correct Answer:    
Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A microscope has an obj8 mbm7y+,dv dw/hqnd 4ective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far 8h yb/47qddnw,vm m+dapart 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 eyepie jsm/ 76x nqx9i4gm+ g+sbx(zfce of focal length 20 mm, adjusted for minimum eys+ ggixx +j(n4 z/msqxf 7b96mestrain. 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 length of 3.00 mm and ao(ypd+-b0.qh 0 vwtlc*re nv* n eyepiece of focal length 6.00 cm. If the two lenses are separated bo.*th( l0 v0-ewyvc *nrqpbd+ y 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 ,ep*ho397u rv7v l ycmfocal length of 8.0 mm. What is the focal length of tv*7 o73vr,ceu9plh myhe 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 confhmp yde2/+hw(-z+u sstellation Orion has an angular separation 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 th d2(-hhmwufp/ eyz++s e two stars?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope is designed to resoss q7+ ht,*o.w */ygmbc xc7jelve objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of l*7 c . wsmytgbqc+o ,e*xjs/h7ight 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 xbsm qle:4d(u0 )feo9mm to 1.5 mm as the illumination is increased. By wha4)9b0ql dmx(eeofu:s t factor does the minimum 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-xviy -el lhf/*6euhaap)o0 3 to Earth orbit by the s3h auvief6p/-0 )ehxlyaol- *pace shuttle. What angular resolution could this telescope achieve if the wavelength is 500 nm?

Correct Answer:    
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