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习题练习:Physics Unit25: Optical Instrument  作者: physics  发布日期: 2023-05-01 10:01

答题人: 匿名未登录  开始时间: 23年05月01日 09:35  切换到: 整卷模式

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1#
 
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  The length of time the shutter is open and the film is exposed-- z3xv4goqq7wv zi*/zwqko4y6 a y,k in a camera is determ z 7 -vkaz4z/y*q6wgoo qy-,3vq xwk4iined by the (1.0 分)
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2#
 
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  The amount of light reaching the film in a camera is determined bym z0flm/6; hay the (1.0 分)
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3#
 
单选题搜藏此题  
  In a single-lens reflex camera the lens-film distance may be varib sutavok2+;+ed by sliding the lens forwaos+ +ak vt2;ubrd or backward with respect to the camera housing. If, with such a camera, a fuzzy picture is obtained, this means that (1.0 分)
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4#
 
单选题搜藏此题  
  A camera lens that covers the film with a field of vt/ 44ipm (hirggz-6 rtiew that corresponds approximately to that of normal vision is reh4mgzi6/rp4r gt(-t i ferred to as a (1.0 分)
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5#
 
单选题搜藏此题  
  A camera lens that acts like a telescope to magnify images is referred to as ,.gw (oe/nge qa (1.0 分)
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6#
 
单选题搜藏此题  
  A camera lens that covers the fia7(x46.r1xds c fep 5aq0salqlm with a wider field of view than that of the eye and through which xs.a 1e(7lq 5r4qf60ac pxsd aobjects appear smaller is referred to as a (1.0 分)
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7#
 
单选题搜藏此题  
  In which of the following ways is a camera different from the human eye .i g49q9dvpkm7wb /upjnu1*t ? (1.0 分)
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8#
 
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  The principal refraction of light by the eye occurs at , 8oq60f 9ikmcb q*c*c6udgbtthe (1.0 分)
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9#
 
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  The closest distance at which an eye can: qos f 8,de8850mytl l gt)yc;b9flce see objects clearly is (1.0 分)
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10#
 
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  The farthest distanc(aemy2zty 1 +ce at which an eye can see objects clearly is (1.0 分)
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11#
 
单选题搜藏此题  
  If a person's eyeball is too long from front to b/ :uh) -j5xfqclx evb7ack, the person is likely to suffer fromx/eufbq5:j)xl- 7 cv h (1.0 分)
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12#
 
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  Nearsightedness can usua,5u vs-wv 33 ofauyzri4xjvxg 25m24zlly be corrected with (1.0 分)
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13#
 
单选题搜藏此题  
  If the human eyeball is too long from front to back, tt )hb2f (gym;dhis gives rise to a vision defect that can be corrected by using ;b(tgymf 2)hd (1.0 分)
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14#
 
单选题搜藏此题  
  If a person's eyeball is too short from front to back, the pertjq ufp12d,zoxfc,w 6hf/1s: son is likely to suffe 6/,qfo,ftsup:czf1j h 1x2dwr from (1.0 分)
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15#
 
单选题搜藏此题  
  Farsightedness can usually be correctm y59oudk.x ( w,hmsp5ed with (1.0 分)
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16#
 
单选题搜藏此题  
  If the human eyeball is too short frsn +,,li,axk uom front to back, this gives rise to a vision defect that can be corrected by x+luk ,sna,i, using (1.0 分)
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17#
 
单选题搜藏此题  
  What type of lens is a vj l.z2 3rb5hp1otz3lmagnifying glass? (1.0 分)
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18#
 
单选题搜藏此题  
  An important reason for o kqp91to(l9h , b0t wxi+(avxusing a very large diameter objective in an astronomical telescope p1wo x o+0i hktq9a((,x 9tbvlis (1.0 分)
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19#
 
单选题搜藏此题  
  Consider the image formed by a refracting telescope. -it kefigqav22c(1;;.uyn qi Suppose an opaque screen iu yq.2ft(iqn-c2iv1 eki ;g a;s placed in front of the lower half of the objective lens. What effect will this have? (1.0 分)
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20#
 
单选题搜藏此题  
  Assuming the film used has uniform mz4, 6l64e orzvrndebc;f ke*89 bj .xsensitivity throughout the visible spectrum, in which of the following cases would you be able to best distinguish between two closely spaced stars? (The lens referred 66vj;eeflebr r84*zomzdxknc94. ,b to is the objective lens of the telescope used.) (1.0 分)
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21#
 
单选题搜藏此题  
  A refracting telescope ha(iui5ei :n/8g c(tq,*rfwgz ss a magnification $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification? (1.0 分)
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22#
 
单选题搜藏此题  
  With what color light would you expect to be able to see the greatestap,q ybfx 1h:* detail when using a micp1h*byx:qa f ,roscope? (1.0 分)
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23#
 
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  Spherical lenses suf+ ;rhq)bbx2e vfer from (1.0 分)
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24#
 
单选题搜藏此题  
  Spherical mirrors suffer fj,byr- cyg4v6ao. og5u5;ck nrom (1.0 分)
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25#
 
单选题搜藏此题  
  The resolving power of a microscope refawk7qh9v (:os ers to the ability to (1.0 分)
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26#
 
单选题搜藏此题  
  If the diameter of a radar dish is doubled, what happens to its resolving , /tz (:defb*t(ug sqwy jxmq92p/x;dpower asse xq2s9u(zpdw,fqd/ b;tx* tj (m/:yguming that all other factors remain unchanged? Its resolving power (1.0 分)
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27#
 
单选题搜藏此题  
  A near-sighted person has a fa5 fs5 u/nd.lnyr point of 18 cm. What lens (in diopters) will allow this person to see dsd5fn5yl/ n. uistant objects clearly? (1.0 分)
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28#
 
单选题搜藏此题  
  A person cannot see clearly objects more than 70.xz.po-e 70*e i3 7dbb5 noxxs1hvzxw;0 cm away. What power of lens should be pvxzz o inx7b o.xw*bxs53 -de70he; 1prescribed if the glass is to be worn 1.00 cm in front of the eye? (1.0 分)
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29#
 
单选题搜藏此题  
  A nearsighted person wears glasfx3 6w2 :rk:2ysonulqses whose lenses have power of -0.15 D. What is the person's far point if the glasses are very close to the e2n23srwql:k f:u6yx oyes? (1.0 分)
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30#
 
单选题搜藏此题  
  What power lens is needed to correct forso 1i;z ;oaf p.q/hh(d farsightedness where the uncorrected near . hooh/;saq( fp1zdi; point is 75 cm? (1.0 分)
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31#
 
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  The near point of a farsighted person is 100 cm. She places r:b/k 2y m,jjmruk uzzrz;g-6 5eading glasses close to her eyes, and with them she can comfortably read a nk /zr6myz:zbg 2 jk-murju,5; ewspaper at a distance of 25 cm. What lens power is required? (1.0 分)
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32#
 
单选题搜藏此题  
  A farsighted person can read a newspaper held 25 cm from his eye - /gsmw5b6lxihqz1 2hs, if he wears glassexmhs/b65i 21zqhgl-w s of
+3.33 diopters. What is this person's near point? (1.0 分)
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33#
 
单选题搜藏此题  
  A magnifying lens has a focal length of j+;f 63nn+spa4 gixet 10 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person whentng6 i+ep4f x 3+sj;an their eyes are focused at infinity? (1.0 分)
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34#
 
单选题搜藏此题  
  A magnifying lens has a focal length of 10 cm. A person has a near point o5wm 1 ue*q2xiy)fkw g)sfl). lf 25 cm. What is the magnification of the lens for that .)lflmue5wy)qfgw )2sx*i1k person when their eyes are focused at their near point? (1.0 分)
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35#
 
单选题搜藏此题  
  A magnifying glass has a focal length of 7.0 cm. What is the magnificatix1nbo;dm *5jeon if the image is viewed by a rel 1onxm;*jed5b axed eye? (1.0 分)
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36#
 
单选题搜藏此题  
  A person uses a converging lens of focal length 5.0 cm as a magnifyipwc. d:6cct371- hk/pnykata ng glass. What is the maximum possible magnificationn3 6t pak.pdc/cwh ta1c -7y:k? (1.0 分)
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37#
 
单选题搜藏此题  
  A person uses a converging lens of focal length 5.0 c1tll l(m 7baen(*z(ed m as a magnifying glass. Wh( ezm(lltea*b 1d7nl( at is the magnification if the person's eye is relaxed? (1.0 分)
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38#
 
单选题搜藏此题  
  You have available lenses of focal lengths 2.0 cm, 4.0 cm,, i-8d z:wu a(h6ln c3ru(,vchru/kq w 8.0 cm, and 16.0 cm. If you were to use any two of these lenses to build a telescope, what is the maximum magnification yv6w( (-ru i/q h8:k3cl,auh,rz udwcnou could achieve? (1.0 分)
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39#
 
单选题搜藏此题  
  You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.e:h5 t.pvv x(s. kc4raa 86bqy0 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 telescopt 6.5praq.v8( 4hyxb: ecaksve? (1.0 分)
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40#
 
单选题搜藏此题  
  The objective of a telescope has xv42u/q i6v4a .ktfp9+:wmqzdyx y j0a focal length of 200 cm and its eyepiece has a focal leng09w4: ayxpf.2vkyxz qv/j6 td+m4uqith of
1.1 cm. What is the magnification of this telescope when viewing an object at infinity? (1.0 分)
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41#
 
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  A student constructs an astronomical telescope with a magnific3jrnc+e;r058h q zla0tkrs- qzee2 -c ation of 10. If the telescope has a converging lens of focal length 50 cm, what is the focal length of8qezh k s-qjn c00arr-l;eczt2r+5 e3 the eyepiece? (1.0 分)
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42#
 
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  A student constructs an anoz*hf y30ts.c,waq,z s t6p;stronomical telescope with a magnification of 10. If the telescope has a converging lens of focal length 50 cm, what is the resulting length of the telescozo.s, hspy,wt z a t6;nq3f0*cpe? (1.0 分)
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43#
 
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  A person is designing a 10X telescopex/v-vi//w z)y tx y bhzvbb(;/. If the telescope is limited to a length oz-vvx;b vb h/by/z(wyx/it/)f 20 cm, what is the approximate focal length of the objective? (1.0 分)
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44#
 
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  A microscope has an objective lens of focal length, ekzz76 mzfn7wo3xax9z*i4 o)9i oly 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sampli y 94oia 9)efwzkom*l3zxon7x,7zz 6e is placed 1.5 mm from the objective. How far apart are the lenses? (1.0 分)
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45#
 
单选题搜藏此题  
  A microscope has an objective lens of focal lxn.9) ;rtw2 mmb v(oooength 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 objec;motobwm vx)r9( n2 .otive. What is the overall magnification? (1.0 分)
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46#
 
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  A compound microscopgny6n.3sb-p9o mxwcg k0m(fk) / x(dke has an objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separate(xdkk. (fn- csykmo )0wp639xmgg/ bnd by 40.0 cm, what is the total magnification? (1.0 分)
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47#
 
单选题搜藏此题  
  A compound microscope has a 18-cm barrel and an objective wk k,y,(u1an tvith a focal length of 8.0 mm. What is the focal length of the eyepiece to give a total magnification of 24ak1ut(v ,n y,k0? (1.0 分)
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48#
 
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  A binary star system in the constellation sgco0ba9z c1 7Orion has an angular separation of 10-5 rad. If the wa9g1a0z7 cobscvelength of the light from the system is 500 nm, what is the smallest aperture (diameter) telescope that can just resolve the two stars? (1.0 分)
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49#
 
单选题搜藏此题  
  A compound microscope is designed to resolve objects which are 0.fctzvkz ;p-m*n w:+kr(v( +c: .gngdj010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light used is 550. (m:c+npg: ng* + k;dzrc(tzvfwvkj- nm, what is the diameter of the objective? (1.0 分)
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50#
 
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  The pupil of a person's eye changes from a diameter of 3.5 mm to 1.5 m)5ttt;rgbo/xj,k fbo zt87 /v m as the illumination is increased. By what factorx/totbz/ ,5o8gr )vk; tf7bj t does the minimum angle of resolution change? (1.0 分)
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51#
 
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  The 2.4-m reflecting Hubble Space Telescope has been ghqoxzu5tv: o0s, 6mcji3 :o:placed into Earth orbit by the space shuttle. What angular resolution could this telescope achieve if the wuzi3xqj, cvt :0g:m6oo5 ho: savelength is 500 nm? (1.0 分)
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