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习题练习：Physics Unit25: Optical Instruments
本习题练习来源于51fly国际课程 (https://51fly.win)，是在线习题练习的打印版，您也可以访问本平台网站(https://51fly.win/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 120 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://51fly.win/test120.html
 作者: physics  发布日期: 2023-05-01 10:00    总分: 51分  得分: _____________

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

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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 and the film is exposed in a camera is t0fun gen*+v :determined by*+tvunn feg:0 the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The amount of light reaching the film in a camera is determined by theosges .u(.k. /q9eetqm8v y 1e

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a single-lens reflex camera the lens-film distance may be varied by sli*r9ouzrxen( ; ding the lens forward or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obte u(;zxro *n9rained, this means that

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that covers the5n f5:lsr :i bzfn ad+c47dlt3 film with a field of view that corresponds approximately to tha47 dcld rls+t:nnzfa5f35bi :t of normal vision is referred to as a

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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 referred vbn2)l6gmg 6a to as a

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A camera lens that covers the film wieqwrfc :+ky4 .th a wider field of view than that of the eye and through whic.:+ e rf4cyqkwh objects appear smaller is referred to as a

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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 different from the human 41s7lzjujlue s mqc57s* f/*i eye?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The principal refraction of jg,vecef0.c 9* cjz/u3.x 1xy7 drddy7ol t5 qlight by the eye occurs at the

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The closest distance at which an eye ci6hymtjdfpq( :jl,92an see objects clearly is

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The farthest distance atbw 1u( 7 eadi5nu3m0vk which an eye can see objects clearly is

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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, the person b6pr- 7vz5 tkv ./e:qqbytr4qis likely to sufferqptq qe-zv 5v:6r 4.r kbbty/7 from

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Nearsightedness can usuafqi 5.nu wdyk*d zwg7 r/-9a8nlly be corrected with

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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,) z +fvj.y /xhjlwh,dguv,s6 rise to a vision defect that cayhh.f+ vg,/6,lj w)zuxd,vjs n be corrected by using

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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, thewnq*p 3 :fs-ss person is likely to suff wsn*:s 3qfp-ser from

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Farsightedness can usually be correq)dyva 32 u1 /5lqe //fomejzqcted with

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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, this gives rise to a v0;yaj 09m qucmision defect that can be corrected 0ajmmy0q; uc9by using

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What type of lens is azbuoxf 8z(4h 3 magnifying glass?

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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 astx6vku pbsa-nz0 )e g/9ronomical telescope i 6zk -g9ve0s/un)abp xs

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider the image formed by a refracting telescop0mmy aic72l)s e. Suppose an opaque screen is placed in front )m mis 7ca0ly2of the lower half of the objective lens. What effect will this have?

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Assuming the film used has uniform sensitivity throughout t9xf+ +q,xyl tnhe visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (Tl9tx,y+q nfx+he lens referred to is the objective lens of the telescope used.)

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A refracting telescope has a magnification vbfsvi/;, +mzokg/we 7ee s5- $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification?

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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 able to see the greatest 1+wf7kp.jt dmdetail when using a miwfdjp.tkm1 + 7croscope?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical lenses suffer frh ii6-7fm ew38sue mahqd175fom

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Spherical mirrors su) ,noum9w xf 4gtep,5xffer from

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The resolving power ofdxmz +r5r6p7 h a microscope refers to the ability to

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the diameter of a radar dish is doubled, what happend4 g3m+ zf;wo5y kq:gis to its resolving power assuming that all other factors rk4zdq5g; :g3yf w+omiemain unchanged? Its resolving power

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A near-sighted person has a far point of 18 cm. What lens (in diopters) will alpk.w,loe5bf ;.x30l ik+jekrj; l+dk low this person to skred,i k3k.j;xbk+po 5jlf wl;le0+.ee distant objects clearly?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person cannot see clearly objej sful95d y.d/cts more than 70.0 cm away. What power of lens should be prescribed if the /ys9df.5ulj d glass is to be worn 1.00 cm in front of the eye?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A nearsighted person wears glasses whose ledxrgjp- 67)lx pr4 4gxnses have power of -0.15 D. What is the person's far point if the glasses are very close to x4lp4 6 dgx7g)r pjr-xthe eyes?

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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 wher6.0 tka gf:qcu: pn,cbe the uncorrected near tn cu,fgb:ap.: ckq 60point is 75 cm?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The near point of a farsighted person is 100 cm. She plat5j;bd pe2v t,ces reading glasses close to her eyes, and with them she can comfortably read a,2dejb ;tp v5t newspaper at a distance of 25 cm. What lens power is required?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A farsighted person can read a newspaper held 25 cm from his eyex+wh3 cliq32mp-x+k7n;sj n bs, if he wears glasses 33nkmiw- j7 +2pq+lcxh s;nx bof
+3.33 diopters. What is this person's near point?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A magnifying lens has a focal lenmyx m7rkr22kxh0b g (.gth of 10 cm. A person has a near point of 25 cm. What is the magnification of t .7 2kbk0 hg2mxrm(rxyhe lens for that person when their eyes are focused at infinity?

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34#
 
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 person has r,9-udsu(x j / u5i ag0*yqnc i)kxox2a near point of 25 cm. What is the magnification of the lekyi0cxngd oa/ ,u5 *ru )u- 9sqixx(2jns for that person when their eyes are focused at their near point?

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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.z8(j+s xn 5w3 yxh0hd2ijh2fm What is the magnification if the image is vienfdj 2z+x 5is 2h(w hhy380xmjwed by a relaxed eye?

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36#
 
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 magnifyinsg6rkq 1483f gnzmpw l+)(.hqhh5i hpg glass. What is the max w h8.qrsm3 hh(+1iklnz)p 5gqfp64hg imum possible magnification?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person uses a converging lens of f 1:m3+ gc ewe+pses+f q5she:vocal length 5.0 cm as a magnifying glass. What is the magnification if the person's eye is relaxed?e+ :sc1+:s ehef3v gwspm5e+q

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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, and 16.0 cm. q(mu5 a -4d6ddq f/gkw If you were to use any two of these lenses to build a telescope,qdwamq(d uf k64g-d5/ what is the maximum magnification you could achieve?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You have available lenses ofs (i ys;+ 4 :wy7iacuisv+-ibn 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 maximum magnification telesn w yssb-+i ;7vc :(i+4aisuiycope?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The objective of a telescope has a focal length o 8g3ll:d xg cdv ub3s s3 k/kfkybk+yk:+t0*y5f 200 cm and its eyepiece has a foca xsdb+:s:yfudkc by3 t3ylkv*l03g/k+8g5 kkl length of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity?

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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.gjwna,/s 2bi* If the telescope has a converging lens ofgb /s,jan*2 iw focal length 50 cm, what is the focal length of the eyepiece?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A student constructs an astronomical telescope with a magnificatii e )0prju:(2xuvghzbs/41 pr on of 10. If the telescope has a converging lens of focal length 5/v ugp0(4 )srx1pbiz2ujer : h0 cm, what is the resulting length of the telescope?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person is designing a 10ttphgfcd s573,6e d3 oX telescope. If the telescope is limited to a length of 20 cm, what is the approximate focal6c,3hp 7d o5g sfd3tte length of the objective?

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44#
 
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 1i-9o fpm6ic; e.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A bl9ii-cem ;of p6ood sample is placed 1.5 mm from the objective. How far apart are the lenses?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A microscope has an objectmqs-5x. ap3 mlive 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 th m5lsx-p.qm3a e objective. What is the overall magnification?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope has an objective with a focal lengtqd5r3;1 axupd h of 3.00 mm and an eyepiece of focal length 6;pu5aqd d1 r3x.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnification?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope has a 18-cm barrel and an objective w*e1t eefr *(5odqr+icith a focal length of 8.0 mm. What is the focal length of the eyepiece to 1eid feorrqcte5+(** give a total magnification of 240?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A binary star system in the constellation Orion has an angular separation otzxwtw1a .pf 7a-/ 1sof 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 resolvea7 1otwwpt1 /ax.fz-s the two stars?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A compound microscope is designed;kn i33fqtz:i l8 /s(pstxf v-0i7coa to resolve objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelengt i;p ( ai3vz:-n/38fl0ftq tsi oscx7kh of light used is 550 nm, what is the diameter of the objective?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pupil of a person's eye changes from a diameter of 3.5 mm to 1.5 mm as thv5wx v 3y+noi,e illumination is increase wy xn,53v+ovid. By what factor does the minimum angle of resolution change?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The 2.4-m reflecting Hubble Space Telescope m1ycg j8 ujdfp6)alv9k-2he-has been placed into Earth orbit by the space sj) y kjhglce 6-u1a29v-dmf p8huttle. What angular resolution could this telescope achieve if the wavelength is 500 nm?

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