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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 opentmorb;scb)*i2 bwb br n05 p43 and the film is exposed in a camera is deternr)* r23tb0; biwop5b4cbm sbmined 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 in a camera is determined by mfva)/b)dgycyyzjdg 5 l(s *9064 av vthe

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a single-lens reflex camera ;8a8qm)5sgptk ( tcr9tn7 6 ,vvopggh 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 picture is obtained, this means tk(gt ,8g)tgp 5shc o 89vqta6p7m;rnv hat

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 a t*8v :1kuxm/l:lqmmetqm8 8gpproximately to m*:q8qlx:ut gkml 81 /m8em vtthat 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 im9 qkixb)z4k4y ages is 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 wit+bcqss 4 -(uwiy07tb wh a wider field of view than that of the eye and throu ciyw s+7tu(b-40bsqwgh 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 adt1.7b qjq)j f 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 lig efvp 28)yc8nzht by 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 clej;5r5c gjm5- dn-gdbfx(xn3 early 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 object1vw. j 3e90,*sfydy)wg ecko fs 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, ov12 d p6f9*obvxi(sbz acn9, the person is likely to suffed9f 6s, 2vbxbio9vcn (p*aoz1r from

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Nearsightedness can usuallxf6n3 ou/j9pa k sk2-ay 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 ta c3+j;z 4 xnc(n9.fjy,/fxrli , xumqo a vision defect that can b4x,yccfl az+.x,f u ;x9ijn( rjn 3/qme 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 is likely z-c9q /74a qeyueryr v)4ja,eto suffer jevrqa- q79u4 cy, zae4er/) yfrom

Correct Answer:    
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Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Farsightedness can usuall mj00t-y qffdh7xz0qf37. lnly be corrected 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 giv wrevbn(35y w.es rise to a vision defect that can be correctbv .e5wr(yw n3ed by using

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What type of lens is a lost;l(1 og6nxn+nl: magnifying glass?

Correct Answer:    
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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An important reason for using a very large diameter objective in ant x petwg- +jzl,,f((g astronomical tefg, w(pt+,-l(e jzgtxlescope is

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Consider the image formed by a refraci/2kb h6trq x;; dft1d uv9k7vting telescope. Suppose an opaque screen is placed in front of the lower half of t kxvv1kq/;drt;dt6ibh u79 f2he objective lens. What effect will this have?

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Assuming the film used i:*cja6 mojq5/m zgza:fi 0h9has uniform sensitivity throughout the visible spectrum, in which of the following cases would you be able to best dis fqjzja :g: 96*m0z5ma/ociihtinguish 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 hay7) *m. ki(9x ixpopevs 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 you expect to bu7 6rm0useml *e able to see the greatest detail when usinl76e u0mr*mu sg a microscope?

Correct Answer:    
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Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical lenses suf;fop; .cj+u z(e- ) zdjmfsbp(fer from

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Spherical mirrors suffkukm 9w(zx8s ;b(g zz/er from

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The resolving power ofs *7o(szh idepeil /59 a microscope 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 toxs5 /b;pum n8i its resolving power assun; bx smip5u/8ming that all 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 perso5gaki 9dxz+k.ksmp / (n has a far point of 18 cm. What lens (in diopters) will allow this person to see distant+. pg 9s5kk(xm/adki z 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. What power ozz9g (q aec:wsud.sc/9jw;o/f lens should be prescribed if the glass is to :uqj// z9cs9(ea wcg;zsow d.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. Whazim ud(f60p j0t is the person's far point if the glasses are very cloi um(6p0zj0 dfse 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 th7 utr 6pn16kb 2uecoy;e uncorrected nea;kbectnru6y 1 7 2up6or point is 75 cm?

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The near point of a farspkyt:0x u m+/ntl2he; ighted person is 100 cm. She 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 /: t+0ey 2h;kupxmn tlrequired?

Correct Answer:    
Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A farsighted person can read a newspaper held 25 cdj(xffw-0u 7lwb 6g:v m from his eyes, if he wears gvfdwjfu:7-x0w 6gl(b 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 :lyd2yt379d 2ynj9yzcq6uwulength of 10 cm. A person has a near point of 25 cm. What is the magnification of the nj 6c97y3: wu9z2d2tdy ulqyylens 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 )i-ko nr -kpcxw r*9+v10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that pe)-p ikv x9 w-c+rno*rkrson 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 lengt1/:b6u7hg8vn ii k ogbh of 7.0 cm. What is the magnification if the image is viewed by a/ b1g68ovbg:h k 7inui 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 meb,4:x9huaklu 8 xe 4lagnifying glass. Whluh8ex4 xb94l,u:a keat is the maximum possible 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* fv*kcq9qjm 8 a magnifying glass. What is the magnification if the person's eye is8vkm*q9q *fjc relaxed?

Correct Answer:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  You have available lenses ogue6l9w+76g f fk9z bzqyjwek0) e i+3f focal lengths 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, w 9k6f7)+e6 jgq+0ewuz3giylk e fb9 wzhat 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 focal lengths 2.0 cm, 4.0 cm, 8.epr zuf i.8q3 s+;k1 6e05 zft8fglehz0 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 maxim5zs6eu;gfptkf z 3.8ir1z0eqhl8+fe um magnification telescope?

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The objective of a telescopeij k59eib068 so, myzd has a focal length of 200 cm and its eyepiece has a focal 8ji5y 0z ,eiomk 69bdslength 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 10. If ke +g)c ae,pl/0w)pjmthe telescope has a convejmpg pec,w) a0/+le )krging 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 magnificwbblz ()p f/d3ation of 10. If the z /f)d3(bl wbptelescope has a converging lens of focal length 50 cm, what is the resulting length of the telescope?

Correct Answer:    
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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 length oojdp *( 09mcarf 20 cm, what is tpc o9a* m0d(jrhe approximate focal length of the objective?

Correct Answer:    
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 an e l*f)y+h -t gqvjtrg27yepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far apart are -h+yrtt2*f)l 7 gg jvqthe 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 1.4zde75 ffi,x 7 )eaqq7n mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. What is the overall magnific75fq eand7 xqf i,ze7)ation?

Correct Answer:    
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Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has an objective with a focal length of 3flar b+udq1f4ke. 8k).00 mm and an eyepiece of focal length 6.00 cm. If the tlq1fbu+4f) kr 8k.a edwo lenses are separated by 40.0 cm, what is the total magnification?

Correct Answer:    
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Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A compound microscope has a 18-cm b xve10 as;f:*(4q5febsper qparrel and an objective with a focal length of 8.0 mm. What is the focal xq a;p:*ssfq(rp efe1 0bv5e4length 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 yzgn 0/ m8fo*fconstellation Orion has an angular separation of 10-5 rad. If the wavelength of the light from f n*f/8gzm oy0the 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 resolver6g t4 --ndmcg3b cast .qu*+i objects 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 b 34tcucg-.+nq6dm *rgt s-ai 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 mhe/2j/-;bh w dfwdy:jm to 1.5 mm as the illumination is increased. By wye:/ jd; bfw-wjhd/h2 hat 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 Telescog vbb/h tm7k:e7w:zb)pe has been placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wavelength iskg bt:) bm:/v7ebwz7h 500 nm?

Correct Answer:    
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