51fly国际课程 (51fly.win)

 找回密码
 立即注册

手机扫一扫,访问本页面

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:Physics Unit25: Optical Instruments

 作者: physics 发布日期: 2023-05-01 10:00   总分: 51分  得分: _____________

答题人: 游客未登录  开始时间: 23年05月01日 10:00  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The length of time the shutter is open 31 u3m 8r+cmwnbjw) 1yfgab6v and the film is exposed in a camera is det fun1v3yb6wj )3gr wm1c amb8+ermined by the

参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The amount of light rea zu4-j6 6h5tn yofzeh.b q4w(-wxikl (ching the film in a camera is determined by the

参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a single-lens refle di jl q.07j,mwfrctek/ust0 0fb +5cp59sa:vx camera the lens-film distance may be varied by sliding the lens forward or backward with respect to the camera housing. Iv .rulsc5 :d +050 jketb0fwt7 pcsqf9 /mj,aif, with such a camera, a fuzzy picture is obtained, this means that

参考答案:    

标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that covers tu8op lqjfvk2(*0rl4che film with a field of view that corresponds approximately to4ll02qk r( vup *ojfc8 that of normal vision is referred to as a

参考答案:    

标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that acts like a telescope to magnify images is refer*ft8t8,t didlh-. iq 8(km qubred to as a

参考答案:    

标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that covers the film with a wider field of view ths 0ts1nbav4q+an that of the eye and through which obbss0q1 nta+4 vjects appear smaller is referred to as a

参考答案:    

标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In which of the following ways is a camera diffea kc+vpl,4nvr27jt d or80t. erent from the human eye?

参考答案:    

标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refraction of light by the eye occurs auw/jhemg4g9n 6e+n pp:3e(- bkp6wo jt the

参考答案:    

标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The closest distance at wh)x0kk(6d /onfp :dg/u:so1 pz/tpqmqich an eye can see objects clearly is

参考答案:    

标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The farthest distance at which an eye can02x2/p m:q6hc(umpd - ibqpqv see objects clearly is

参考答案:    

标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a person's eyeball is too long from front to back,64)nfrfp jhd - the person is likely to suffer f6 -fhrd 4p)njfrom

参考答案:    

标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usually be cornsx xw;d2-u +srected with

参考答案:    

标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the human eyeball is too long from front to back, this gives rise tgvrr ,mauup t;0.s4ob l0+ay,o a vision del ;rou,4u +pv ay b0am.0tsr,gfect that can be corrected by using

参考答案:    

标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a person's eyeball is too short from front to back, the perso 0-,3 a vd)z2arslm9gjfk5g jfn is likely to suffel3ggaz v) af,k f2dj-509rsjmr from

参考答案:    

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usually be corrected i)fzz bqxu4f-ih p6q hd6q(/,with

参考答案:    

标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the human eyeball is too short from front to back, thi0jao umt*l4 jx-*b 1xf*9xh acs gives rise to a vision defect that ccba0*41a- o lxj*hx9t fjxum*an be corrected by using

参考答案:    

标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What type of lens is a magnifying glac( oxhz1 7wc8tb ) ggjm5u(m:jss?

参考答案:    

标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An important reason for using a very large diameter objective in an rfrr sqs j/mzm.-;e*5astronomical telescope issrs rm.qer;z/*5f mj -

参考答案:    

标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider the image formed by a refracting telescope. Suppose an opaque screen nu 8u)3bs4f hb:myj .ois placed in front of the lower half of the objective lens. What effect wiljnu8:3bf umy o4.b)h sl this have?

参考答案:    

标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Assuming the film used hanguxi2k3gi5 4 s uniform sensitivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely space5 gx24 ugkni3id stars? (The lens referred to is the objective lens of the telescope used.)

参考答案:    

标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A refracting telescope has a magnificationvew g qpmg8 fi5(v+.l) $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification?

参考答案:    

标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  With what color light would you expect to be abi;d ,4ylzh4kcjp -u)cle to see the greatest detail when usi cdhu4-kjcpzl)4; i,y ng a microscope?

参考答案:    

标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffe.wavi fvhjm65h+uo88m 4d4cj r from

参考答案:    

标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors suyqef tae r1:u,t3+z-f ffer from

参考答案:    

标记此题
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The resolving power of a microscope refers to the abin6 pwbs 5 a 16q uuxvb,r,/5,upg:bipmlity to

参考答案:    

标记此题
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the diameter of a rgmk .:xa92 pvjadar dish is doubled, what happens to its resolving power assuming th :2kgmpa vj9x.at all other factors remain unchanged? Its resolving power

参考答案:    

标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A near-sighted person has a igi:ay): gp51hyoan- far point of 18 cm. What lens (in diopters) will allow this person to see distant objects cle)5 nhi:- pygi 1oag:ayarly?

参考答案:    

标记此题
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person cannot see clearly objey -(qv:w1yr7ko hcs4sg8u k,qcts more than 70.0 cm away. What power of lens should be prescribed if the glass is to be worn 1.00 cm in front of the eyor ,wkyh7gs- :q(uykv14 8cqse?

参考答案:    

标记此题
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A nearsighted person wears glasses whol r t0ya.8f3sk313 erhjw 0yb:6vbrgf se lenses have power of -0.15 D. What is the person's far point if the glasses are very close to the eyes?y 168 a j.3fbrrkh:vrb0f ets0wy33lg

参考答案:    

标记此题
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What power lens is needed to correct for farsightedness where zl .e5,0w bp:*jaoqtbthe uncorrected nearqwz5.o:*ja bplbt, 0 e point is 75 cm?

参考答案:    

标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The near point of a farsightaxbp6*fs; wicn93rcz .t8yjhq4cs, ,ed 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 lenzxq8c *s4b;,sary6 9c. jn,hwt 3ficps power is required?

参考答案:    

标记此题
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A farsighted person 6j ap b(.cx-z hru)f:uz)q/hbcan read a newspaper held 25 cm from his eyes, if he wears glasses ofj- zh6h:bp(xf q ).r)uuaz/bc
+3.33 diopters. What is this person's near point?

参考答案:    

标记此题
33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A magnifying lens has a focal length of 10 cm. A pers 7ufw*i0uyq.* 8swcpzon has a near point of 25 cm. What is the magnification of the lens for that person when their eyes are focusey cp0zq**si8fw7w. u ud at infinity?

参考答案:    

标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A magnifying lens ha 3 x:k t6ixa,d4/mjm9vpz:zk ws a focal length of 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that p6jx9 :zdxpa,4m wk/vtzk:m3ierson when their eyes are focused at their near point?

参考答案:    

标记此题
35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A magnifying glass has a focal length of 7.0 cm. What is the magnificationo,xk2 u*-hsc7 lry3m j if the image is viewel *3ok -hsrjc,ux 72ymd by a relaxed eye?

参考答案:    

标记此题
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person uses a converging lens+d7t 3)allde*e -b +ktx mey.d of focal length 5.0 cm as a magnifying glass. What is 3xa7)elt+* dte.+-e dmlky db the maximum possible magnification?

参考答案:    

标记此题
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person uses a converging lens of focal length 5.0 cm as a magnifyin)ky/sl/23x8p rk /(9ioq1m 6dkam z arucmub: g glass. What is the magnification if /mblp ux// k8zao2 ci6 )mkur3q9rd as1ykm(: the person's eye is relaxed?

参考答案:    

标记此题
38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm,s nr/ )gfa6nc-dc5q, n*wa5pe and 16.0 cm. If you c6,rdcanwng/ na-q* )55 psfewere to use any two of these lenses to build a telescope, what is the maximum magnification you could achieve?

参考答案:    

标记此题
39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You have available lense 0 nh f+4h0 kmf6zjmxwwq+* (d)mm(aqks of 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*q mkkmw)z0ahq+dwm 0(4nx+m( hf f j6 maximum magnification telescope?

参考答案:    

标记此题
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The objective of a telescope has a foc-ykawsv 7 gz (-g5t2ztal length of 200 cm and its eyepiece has a fgzkg-25vt- z w(ty7a socal length of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

参考答案:    

标记此题
41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A student constructs an astronomical telescope with a magnification of 10. I/lx kzpm62 gs*f the telescope has a convergk/x ps2*g zl6ming lens of focal length 50 cm, what is the focal length of the eyepiece?

参考答案:    

标记此题
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A student constructs(tpt , zfq0pcvp 6h;(o an astronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting leo6 0(p pftqzh( t;p,cvngth of the telescope?

参考答案:    

标记此题
43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person is designing a 10X telescope. If th n+rfu;y9ty;re telescope is limited to a length of 20 cm, what is the appr9yr;yn;frut+ oximate focal length of the objective?

参考答案:    

标记此题
44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A microscope has an objective lens oeoo7: ta9fkfm4 f q9dws3a.q0f focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eaeok.w9aqdo :sft4937 f0 fmqyestrain. A blood sample is placed 1.5 mm from the objective. How far apart are the lenses?

参考答案:    

标记此题
45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A microscope has an objective lens of focal length 1.4 mm anxtc noi4x;l6ubwz *e775 ugyp5 qul3;d an eyepiece of focal length 20 mm, adjusted for minimum eyestrainecq *35x;l7b yz4;w5t unuu og7il6p x. A blood sample is placed 1.5 mm from the objective. What is the overall magnification?

参考答案:    

标记此题
46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope has at(2g9k:k octqn objective with a focal length of 3.00 mm and an eyepiece oqg kc2kt o(:9tf focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnification?

参考答案:    

标记此题
47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope h 8yrgrig4 p4a/xxc 4ibo 5an8:74c mtjas a 18-cm barrel and an objective with a focal length of 8.0 mm. What is the focal length x7y:om g8ij btp4ga48arccx r/44ni 5of the eyepiece to give a total magnification of 240?

参考答案:    

标记此题
48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A binary star system in the conste(m33xt0e y-sv 9oa (8wnuvhq ru(5uaw llation 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 ju3vxqv(u0(wu5nh roa89tey au (s3 -w mst resolve the two stars?

参考答案:    

标记此题
49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscop7(j cqdctnikm8fl+9, i) 4wiae is designed to resolve 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 diameter of the obljc+mdcinf)qa( itwi 74 ,89kjective?

参考答案:    

标记此题
50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pupil of a person's eye ci;gyxr4 ;*n1lsf ( ov m2cp:syhanges from a diameter of 3.5 mm to 1.5 mm as the illumination is increase4;:fys1cip*(xslov;g2m r y n d. By what factor does the minimum angle of resolution change?

参考答案:    

标记此题
51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The 2.4-m reflecting Hubble Spacv47v(m gf8kob:v 1clbe Telescope has been placed into Earth orbit by the space shutt fc74lvk vmbg8v(1bo:le. What angular resolution could this telescope achieve if the wavelength is 500 nm?

参考答案:    

总分:51分 及格:30.6分 时间:不限时
未答题: 已答题:0 答错题:
当前第 题,此次习题练习共有 51 道题

浏览记录|手机版视频|手机版试卷|使用帮助|51fly国际课程 (https://51fly.win)

GMT+8, 2025-11-5 04:31 , Processed in 0.369604 second(s), 132 queries , Redis On.