Physics Unit24: Wave Nature of Light

1#

State Huygen's principle.n ei)j7rl1 6vm

该题自我估分: (必填) (满分:1.0分)

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which of the following is a false stke t,9 myz;;ozatement?

A. All points on a given wave front have the same phase.

B. Rays are always perpendicular to wave fronts.

C. All wave fronts have the same amplitude.

D. The spacing between adjacent wave fronts is one-half wavelength.

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The wave theory of light is attrl(90/ypqmdod0wh v9gq z*z3d ibuted to

A. Christian Huygens.

B. Isaac Newton.

C. Max Planck.

D. Albert Einstein.

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The particle theory of li:* c 1njcjyiev+fg7 9w.x +ijgk:hg9rght is attributed to

A. Christian Huygens.

B. Isaac Newton.

C. Max Planck.

D. Albert Einstein.

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a light wave enters into a medium of drvp/us6u8 m )hlw s(9sifferent optical density,

A. its speed and frequency change.

B. its speed and wavelength change.

C. its frequency and wavelength change.

D. its speed, frequency, and wavelength change.

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a beam of light (wavelength k8xt 02ql e gz7:bis6p= 590 nm), originally traveling in air, enters a pext6 s082qizbp:7 gk liece of glass (index of refraction 1.50), its frequency

A. increases by a factor of 1.50.

B. is reduced to 2/3 its original value.

C. is unaffected.

D. none of the given answers

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a beam of light (wavelength = 590 nm), originally traveling in air, e ir1k;fn2;jjz ldw-qbj .0m 1nnters a piece of glafln0nz- kwd1 j.;qjmbj;r 21iss (index of refraction 1.50), its wavelength

A. increases by a factor of 1.50.

B. is reduced to 2/3 its original value.

C. is unaffected.

D. none of the given answers

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What principle is responsible for light spreading as it passes throuh/cmfwmenl7v2iu b; 1)ut91egh a narrow slil1h2/cfiubet 9 ;m enw)m71uvt?

A. refraction

B. polarization

C. diffraction

D. interference

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Radio waves are diffracted by large objects such as b l etvru lyx/kp0/585guildings, whereas light is not noticeably diffracted. Why i tx8/gk505vyl / lupres this?

A. Radio waves are unpolarized, whereas light is plane polarized.

B. The wavelength of light is much smaller than the wavelength of radio waves.

C. The wavelength of light is much greater than the wavelength of radio waves.

D. Radio waves are coherent and light is usually not coherent.

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What principle is res1 x2zb pe 0m,e/g dzu b)o2r-s1we(ffzponsible for alternating light and dark bands when light passes through two or more narr2zpz,-fbx 1/e)0reufb ed so zg 2(wm1ow slits?

A. refraction

B. polarization

C. dispersion

D. interference

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two light sources are said op;y 7x0aw 1ve09ohqgto be coherent if they

A. are of the same frequency.

B. are of the same frequency, and maintain a constant phase difference.

C. are of the same amplitude, and maintain a constant phase difference.

D. are of the same frequency and amplitude.

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What do we mean when we say that two light rays striking a screen are in pha693m+yws bjyfvs-t9 b 4i k5*-fpf ixlse wif5iw p-* f +43j69vyxf bs9-bstlm ikyth each other?

A. When the electric field due to one is a maximum, the electric field due to the other is also a maximum, and this relation is maintained as time passes.

B. They are traveling at the same speed.

C. They have the same wavelength.

D. They alternately reinforce and cancel each other.

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two beams of coherent light travel different pathhh+,k- wr v)/ *pmm 1 elldh:jofl.bycp4p4m0s arriving at point P. If the maximum comp p+hp/)jb.,celh4mkdlryv fo * -m: 1hl 04wnstructive interference is to occur at point P, the two beams must

A. travel paths that differ by a whole number of wavelengths.

B. travel paths that differ by an odd number of half-wavelengths.

C. travel paths that differ by a whole number of quarter-wavelengths.

D. can not be determined.

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two beams of coherent light travel different paths arriving at -z (r+lz0+uxsgkqs 9u point P. If the maximum destrugukz0x q+u-r9z+ ss(l ctive interference is to occur at point P, the two beams must

A. travel paths that differ by a whole number of wavelengths.

B. travel paths that differ by an odd number of half-wavelengths.

C. travel paths that differ by a whole number of quarter-wavelengths.

D. can not be determined.

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

At the first maxima on either side of the central bright sp(7 2fxw, .gklgarbpjq9,nc1zot in a double-slit experiment, light from each opening gn2 jb(qzk,lrf a9pc. xwg71,arrives

A. in phase.

B. $90^{\circ}$ out of phase.

C. $180^{\circ}$ out of phase.

D. none of the given answers

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16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

At the first minima on either side xq/8jbs k3u3fof the central bright spot in a double-slit experiment, light from eajkq8fxb 3 su/3ch opening arrives

A. in phase.

B. $90^{\circ}$ out of phase.

C. $180^{\circ}$ out of phase.

D. none of the given answers

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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

At the second maxima on eiu e 5zcm0k-7lrther side of the central bright spot in a double-slit exper0r m-k cue7l5ziment, light from

A. each opening travels the same distance.

B. one opening travels twice as far as light from the other opening.

C. one opening travels one wavelength of light farther than light from the other opening.

D. one opening travels two wavelengths of light farther than light from the other opening.

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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a Young's double slit experiment, if the separation between the slit+bi;h;ksgy i3a 8a0h ks decreases, what happens to the distance between the interf 0+i abshh;k gy3iak8;erence fringes?

A. It decreases.

B. It increases.

C. It remains the same.

D. There is not enough information to determine.

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19#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a double-slit experiment, it is observed that the distance between adjacent 0k,x -hmeod.vat7 g9gmaxima on a remote screen is 1.0 cm. What happens.vdamox -gthe, k790g to the distance between adjacent maxima when the slit separation is cut in half?

A. It increases to 2.0 cm.

B. It increases to 4.0 cm.

C. It decreases to 0.50 cm.

D. It decreases to 0.25 cm.

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20#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

One beam of coherent ljn lv;oc*bk31ight travels path $P_1$ in arriving at point Q and another coherent beam travels path $P_2$ in arriving at the same point. If these two beams are to interfere destructively, the path difference $P_1 - P_2$ must be equal to

A. an odd number of half-wavelengths.

B. zero.

C. a whole number of wavelengths.

D. a whole number of half-wavelengths.

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21#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

If a wave from one slit of a Young's double slit experiment arrives chii/mll g8;a7ggk *e ):0pcm at a point on the screen one-half wavelength begg8h /cl 7i e0;gpca)im:*lkm hind the wave from the other slit, which is observed at that point?

A. bright fringe

B. dark fringe

C. gray fringe

D. multi-colored fringe

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22#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Why would it be impossible to obtain interu:p h8 ed(dfxp+plv:4 yu m5;aference fringes in a double-slit experiment if the separ dvu8h:4fm ae pup (yp5l:x+;dation of the slits is less than the wavelength of the light used?

A. The very narrow slits required would generate many different wavelengths, thereby washing out the interference pattern.

B. The two slits would not emit coherent light.

C. The fringes would be too close together.

D. In no direction could a path difference as large as one wavelength be obtained, and this is needed if a bright fringe, in addition to the central fringe, is to be observed.

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23#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The separation between adjacent maxima in a double-slit interfertxkd,n :xl.9 x4m3 kvaence pattern using monockn t, :3x.9md4vkxlxa hromatic light is

A. greatest for red light.

B. greatest for green light.

C. greatest for blue light.

D. the same for all colors of light.

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24#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The principle which explains why a prism separates white lighjahs8 p 156wibt into different colors 6 5hb81sjp iawis

A. refraction.

B. polarization.

C. dispersion.

D. total internal reflection.

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25#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The principle which allows a rainbow t/1f12xcnnz hdo form is

A. refraction.

B. polarization.

C. dispersion.

D. total internal reflection.

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26#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

White light is

A. light of wavelength 550 nm, in the middle of the visible spectrum.

B. a mixture of all frequencies.

C. a mixture of red, green, and blue light.

D. the term used to describe very bright light.

E. the opposite (or complementary color) of black light.

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27#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light with wavelength slightly shorter than 400 nm d t;wbgf73j.4 ei*0pl r7( nefxhb2tpz7j*eais called

A. ultraviolet light.

B. visible light.

C. infrared light.

D. none of the given answers

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28#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light with wavelength slightly longer than 7a1 )tlh* ubty6hat9 +l50 nm is called

A. ultraviolet light.

B. visible light.

C. infrared light.

D. none of the given answers

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29#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which color of light undergoes the greatest l/k/m pu/)mmemyx/0 jrefraction when passing from air to glasske)mmmlx/p u//0y m/ j?

A. red

B. yellow

C. green

D. violet

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30#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which color of light undergoes the smallest refra*vuukvn+m htk 8m*9g/g7x -bzvc.8spction when passing from air to gltg+mu8z*8p vgbc hvvx9mk7-u *ks .n/ass?

A. red

B. yellow

C. green

D. violet

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31#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A beam of white light is incident on a thick glass plate with para+4 m urwc:t54 ttoyop3llel sides, at an angle between:ur+45wct to34t mopy $0^{\circ}$ and $90^{\circ}$ with the normal. Which color emerges from the other side first?

A. red

B. green

C. violet

D. None of the given: all colors emerge at the same time.

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32#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A person gazes at a verenfb5/1cq p kv 9-x8duy distant light source. If she now holds up two fingers, with a very small gap bekn pef9q/vdub-c1 58x tween them, and looks at the light source, she will see

A. the same thing as without the fingers, but dimmer.

B. a series of bright spots.

C. a sequence of closely spaced bright lines.

D. a hazy band of light varying from red at one side to blue or violet at the other.

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33#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a single slit diffraction experiment, if the wgk .qxglpgi +oxxq73442vs 7 width of the slit increases, what happens to the width of the cexq7p ixg3s g w7q+.l2k4 go4xvntral maximum on a screen?

A. It increases.

B. It decreases.

C. It remains the same.

D. There is not enough information to determine.

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34#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Consider two diffraction gratings; one hjb 5m91j q4uljas 4000 lines per cm and the other one has 6000 lines per cm. Make a sml9 q uj1jb5j4tatement comparing the dispersion of the two gratings.

A. The 4000-line grating produces the greater dispersion.

B. The 6000-line grating produces the greater dispersion.

C. Both gratings produce the same dispersion, but the orders are sharper for the 4000-line grating.

D. Both gratings produce the same dispersion, but the orders are sharper for the 6000-line grating.

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35#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Consider two diffraction gratings with the same slit separation, the onl5n pl 6u6zlee9y difference being that one e9lup zen66 5lgrating has 3 slits and the other 4 slits. If both gratings are illuminated with a beam of the same monochromatic light, make a statement concerning the separation between the orders.

A. The grating with 3 slits produces the greater separation between orders.

B. The grating with 4 slits produces the greater separation between orders.

C. Both gratings produce the same separation between orders.

D. Both gratings produce the same separation between orders, but the orders are better defined with the 4-slit grating.

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36#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The colors on an oil slick are caused by refle3zw j+mf 1r9pofdwdl 3ke93)wction and

A. diffraction.

B. interference.

C. refraction.

D. polarization.

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37#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

We have seen that two monochromatir19fqkhjm rs-* )0fl oc light waves can interfere constructively or destructively, depending on their phase diff 0 mhfkf1jqs9) r-rl*oerence. One consequence of this phenomenon is

A. the colors you see when white light is reflected from a soap bubble.

B. the appearance of a mirage in the desert.

C. a rainbow.

D. the way in which Polaroid sunglasses work.

E. the formation of an image by a converging lens, such as the lens in your eye.

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38#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a beam of light, which is traveling in glzg u6tb .c8:v6fy6pdv ass, strikes an air boundary, there i.:c u6zfvbp68tv d6 gys

A. a $90^{\circ}$ phase change in the reflected beam.

B. no phase change in the reflected beam.

C. a $180^{\circ}$ phase change in the reflected beam.

D. a $45^{\circ}$ phase change in the reflected beam.

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39#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a beam of lightg4kgd sb94 -azd*gc 8khu; hutyp ,22lb :l/rn, which is traveling in air, is reflected by a glass surfacekc- dztp ubl 4ah;n,92/ 4u rg28:sdyhlbggk*, there is

A. a $90^{\circ}$ phase change in the reflected beam.

B. no phase change in the reflected beam.

C. a $180^{\circ}$ phase change in the reflected beam.

D. a $45^{\circ}$ phase change in the reflected beam.

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40#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A soap film is being viewed in white light. As the film bec sb g.azf:)ll),usej2omes very much thinner than thlsfu,aze.j 2: s)) glbe wavelength of blue light, the film

A. appears totally transparent because it reflects no visible light.

B. appears white because it reflects all wavelengths of visible light.

C. appears blue since all other colors are transmitted.

D. appears red since all other colors are transmitted.

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41#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In terms of the wavelen+fw3c, dr mbp3 ()a:nrtsx,rcgth of light in magnesium fluoride, what is the minimum thickness of magnesium fluoride coating that must be applied to a glass lens to make it non-reflecting for that wavelength? (The index of refr r fwmc3s)pd( 3cbt:rxna+r,, action of magnesium fluoride is intermediate to that of glass and air.)

A. one-fourth wavelength

B. one-half wavelength

C. one wavelength

D. There is no minimum thickness.

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42#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A convex lens is placed on a flat glass plate and illuminated 9adgf: 8p:6ojfoz2u lfrom above with monochromaod a: u2ozpj:fl8 f9g6tic red light. When viewed from above, concentric bands of red and dark are observed. What does one observe at the exact center of the lens where the lens and the glass plate are in direct contact?

A. a bright red spot

B. a dark spot

C. a rainbow of color

D. a bright spot that is some color other than red

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43#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What principle is responsible for the fact tha 21mmkhr auj).,h fjefd4(hz r:hh( +nt certain sunglasses can reduce glare 4n( h1,2rzk e uhmhjfha .)d+fhj:m(rfrom reflected surfaces?

A. refraction

B. polarization

C. diffraction

D. total internal reflection

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44#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

For a beam of light, the direction of dhkgya (hd*4l j3-1te 9zakl +polarization is defined as

A. the beam's direction of travel.

B. the direction of the electric field's vibration.

C. the direction of the magnetic field's vibration.

D. the direction that is mutually perpendicular to the electric and magnetic field vectors.

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45#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the process to obtain polxzh 2o:4eks6 darized light in a dichroic material like a Polaroix os6zd: khe42d film?

A. reflection

B. refraction

C. selective absorption

D. scattering

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46#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When the transmission axes of two Polaroid films are perpendi mzlhpa1 e v:u,1,qe6ej4 aojz4 ssg,0-i; pixcular to each other, what is t a,:iesojpmlu4j-;qg,avh e1zi sxz 6e,1p0 4 he percentage of the incident light which will pass the two films?

A. 0%

B. 25%

C. 50%

D. 75%

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47#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Sunlight reflected fromc92z+k y-3hn : - rsgqpk-rrum-sccb, the surface of a lake

A. is unpolarized.

B. tends to be polarized with its electric field vector parallel to the surface of the lake.

C. tends to be polarized with its electric field vector perpendicular to the surface of the lake.

D. has undergone refraction by the surface of the lake.

E. none of the given answers

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48#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The polarization of sunlight is greatest ww2/yeda 15i,bk)merat

A. sunrise.

B. sunset.

C. both sunrise and sunset.

D. midday.

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49#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In which of the following is diffract vrh h-gps(eg1 6:oy0gion NOT exhibited?

A. viewing a light source through a small pinhole

B. examining a crystal by X-rays

C. using a microscope under maximum magnification

D. resolving two nearby stars with a telescope

E. determining the direction of polarization with a birefringent crystal

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50#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

On a clear day, the sky appears to be more blue toward the zgk r8 f4mdf1y3enith (overhead) than it does tkg384r df 1fymoward the horizon. This occurs because

A. the atmosphere is denser higher up than it is at the Earth's surface.

B. the temperature of the upper atmosphere is higher than it is at the Earth's surface.

C. the sunlight travels over a longer path at the horizon, resulting in more scattering.

D. none of the given answers

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51#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A beam of light ($f = 5.0 \times 10^{14} \; Hz$) enters a piece of glass (n = 1.5). What is the frequency of the light while it is in the glass?

A. $5.0 \times 10^{14} \; Hz$

B. $7.5 \times 10^{14} \; Hz$

C. $3.3 \times 10^{14} \; Hz$

D. none of the given answers

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52#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light has a wavelength of 600 nm in a vacuum. It passes into glass, which hass3+02 gfo h1gkwipg vei3lr+0rn2v+ e an indexe w30s +vn3hf+glgei2rop gri0+ 1k v2 of refraction of 1.50. What is the wavelength of the light in the glass?

A. $600 \; nm$

B. $500 \; nm$

C. $400 \; nm$

D. $300 \; nm$

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53#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light has wavelength 600 nm in a vacuum. 8bsgkj1m 6 dw+ It passes into glass, which has an index of refd+6mb 1gwks8 jraction of 1.50. What is the frequency of the light inside the glass?

A. $3.3 \times 10^{14} \; Hz$

B. $5.0 \times 10^{14} \; Hz$

C. $3.3 \times 10^{5} \; Hz$

D. $5.0 \times 10^{5} \; Hz$

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54#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light has a wavelength of 600 nm in a vacuu/*dutm8:96i jgbpb2x y cr6o wm. It passes into glass, which has an index of refraction of 1.50. What is the speed of the light in the gla/ p:9dmitrb6xog*uc6 j2 ywb8ss?

A. $3.0 \times 10^{8} \; m/s$

B. $2.5 \times 10^{8} \; m/s$

C. $2.0 \times 10^{8} \; m/s$

D. $1.5 \times 10^{8} \; m/s$

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55#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 550 s,66sn/kvn el nm in vacuum is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the index of refraction of the liquid.

A. 0.65

B. 1.53

C. 1.96

D. 5.50

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56#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 550 nm in air1e8m n-oz bw:d is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the frequency of the light in the liquid.

A. $5.5 \times 10^{14} \; Hz$

B. $3.6 \times 10^{14} \; Hz$

C. $5.5 \times 10^{5} \; Hz$

D. $3.6 \times 10^{5} \; Hz$

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57#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 550 nm is e, 5og3 4ng/4vyoxxpn air is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the wavelength of the light in the liquid.

A. $550 \; nm$

B. $359 \; nm$

C. $281 \; nm$

D. $303 \; nm$

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58#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two thin slits are 6.00 mm apart. Monochromatic s+(4sp jpa7hc light falls on these slits, and produces a fifthps+a h4sp7(cj order interference fringe at an angle of $32.3^{\circ}$. What is the wavelength of the light?

A. $164 \; nm$

B. $416 \; nm$

C. $614 \; nm$

D. $641 \; nm$

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59#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 575 nm falls on a double-slit and the third orde.f* * a-t7hypqr2jbs hxit h+c/(eej;r bright fri*t-xqsr jhht7jbfa2c(ih /*p +ey.;e nge is seen at an angle of $6.5^{\circ}$. What is the separation between the double slits?

A. $5.0 \; mm$

B. $10 \; mm$

C. $15 \; mm$

D. $20 \; mm$

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60#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a Young's double slit experiment, if the separation between the+vsv31 mhqgsd.+xgi* two slits is 0.050 mm and ggdvsi+*x3h.1 q +svmthe distance from the slits to a screen is 2.5 m, find the spacing between the first-order and
second-order bright fringes for light with wavelength of 600 nm.

A. $1.5 \; cm$

B. $3.0 \; cm$

C. $4.5 \; cm$

D. $6.0 \; cm$

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61#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a double-slit experiment, the slit separation is 2.0 mm, and twox9g5(l p fixx2 wavelengths, 750 nm and 900 nm, illuminate the slits. A screen is placed 2.0 m from the slits. At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe 2 xlgxfp(9 5ixfrom the other?

A. $1.5 \; mm$

B. $3.0 \; mm$

C. $4.5 \; mm$

D. $6.0 \; mm$

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62#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two thin slits are 0.050 mqqsg-gh--hwd( 3* gyvm apart. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how faqyv- gh3q -gd(s*wg- hr apart are adjacent interference fringes?

A. $0.76 \; mm$

B. $7.6 \; mm$

C. $7.6 \; cm$

D. $76 \; cm$

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63#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A monochromatic light is incident on a Young'sguz e5 - +exb8)ppwb-l double slit setup that has a slit separation of 30.0 mm. The resultant bright fringe separation is 2.15 cm on a screen 1.20 m from the double slit. What is the separation between the third-order bright fringe and the zeroth-order bb8w -e+lb 5)pp guxez-right fringe?

A. $8.60 \; cm$

B. $7.35 \; cm$

C. $6.45 \; cm$

D. $4.30 \; cm$

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64#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A parallel light beam ;zzul 7)n x6q1ir4omh containing two wavelengths, 480 nm and 700 nm, strikes a plain piece of glass at an angle of incidence of 60e. The index of refraction of thor ;)7 nh4xzul 16qizme glass is 1.4830 at 480 nm and 1.4760 at 700 nm. Determine the angle between the two beams in the glass.

A. $0.10^{\circ}$

B. $0.15^{\circ}$

C. $0.20^{\circ}$

D. $0.25^{\circ}$

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65#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A ray of light consisting of blue light (wavelength 480 nm) and red light (wahm(atqxs-up h/+ nq1q*1gp7ul v/9 k avelength 670 nm) is incident on a thick u7qxp-gs1+l/ 91*ph(/autvhq mknqa piece of glass at $80^{\circ}$. What is the angular separation between the refracted red and refracted blue beams while they are in the glass? (The respective indices of refraction for the blue light and the red light are 1.4636 and 1.4561.)

A. $0.27^{\circ}$

B. $0.33^{\circ}$

C. $0.34^{\circ}$

D. $0.46^{\circ}$

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66#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

350 nm of light falls on a single slit of*csfm3ih2,a4 mww-r r width 0.20 mm. What is the angular width of the cen2i*cmah -,wsr w f43mrtral diffraction peak?

A. $0.10^{\circ}$

B. $0.15^{\circ}$

C. $0.20^{\circ}$

D. $0.30^{\circ}$

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67#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A single slit, which is 0.050 mm wide, is illuminated by ff r6.19ooqnlhztjwn 78fo 88light of 550 nm wavelength. What is the angular separation between the first two minima on either side of the cztfn1h.7 nfofowq8j68l8r 9 o entral maximum?

A. $0.36^{\circ}$

B. $0.47^{\circ}$

C. $0.54^{\circ}$

D. $0.63^{\circ}$

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68#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 687 nm iq+,dkwf 4 x8qqs incident on a single slit 0.75 mm wide. At what distance from the slit should a screen befkd84q qwq+, x placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center of the screen?

A. $0.39 \; m$

B. $0.93 \; m$

C. $1.1 \; m$

D. $1.9 \; m$

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69#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 610 nm is incident on a slit 0.20 mm wide and the diffracti4+m-b+ 59oyyp4pxy4stkx sk g on patter4 xb4 mt+5kpyxp 9+s4- oyyskgn is produced on a screen that is 1.5 m from the slit. What is the width of the central maximum?

A. $0.34 \; cm$

B. $0.68 \; cm$

C. $0.92 \; cm$

D. $1.2 \; cm$

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70#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 580 nm is incident on a slit of width 0.300 mm. Autqxj61 k5q/to9w t7fn observing screen is placed 2.00 m from the slit. Ftwut qjof1 /k7t5q9 6xind the position of the first order dark fringe from the center of the screen.

A. $0.26 \; mm$

B. $1.9 \; mm$

C. $3.9 \; mm$

D. $7.7 \; mm$

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71#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 580 nm is inc gdw1mcbo u)ak0spf87n 4c8w zx6w4+cident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the width of thnc gcsp8+ w f4 kuz7o016xacb)m84ww de central maximum.

A. $0.26 \; mm$

B. $1.9 \; mm$

C. $3.9 \; mm$

D. $7.7 \; mm$

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72#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When light illuminates a grating with 7000 lines per centimeter, its se gka9o4 qti*s)j9aeg 6y9.,wsrpvg+pcond order+ g9)gp . 9k9asjg4*a,vqwt6poesryi maximum is at $62.4^{\circ}$. What is the wavelength of the light?

A. $336 \; nm$

B. $363 \; nm$

C. $633 \; nm$

D. $752 \; nm$

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73#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diffraction grating has 5000 lines per cm. Tf3;qrex/ 2jx)f s;uyc he angle between the central maximum asc e/ xj ;xrqyuf);3f2nd the fourth order maximum is $47.2^{\circ}$. What is the wavelength of the light?

A. $138 \; nm$

B. $183 \; nm$

C. $367 \; nm$

D. $637 \; nm$

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74#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Monochromatic light is incident on a jf 7*rdla knf. bkm687eu8 :lfgrating that is 75 mm wide and ruled with 50,000 lines.6rf 7:8k an fuj*7 .kblmef8ld The second-order maximum is seen at $32.5^{\circ}$. What is the wavelength of the incident light?

A. $202 \; nm$

B. $403 \; nm$

C. $605 \; nm$

D. $806 \; nm$

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75#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a diffraction experiment, light;2/z(u h* n4kmwibry:jbk pi7 of 600 nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen. A second monochromatic source produces a third-order maximum 0.870 mm from the central maximum when it passes through the same diffraction grating.4/ rk*nbw2;pimyz buk:7hj (i What is the wavelength of the light from the second source?

A. $479 \; nm$

B. $497 \; nm$

C. $749 \; nm$

D. $794 \; nm$

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76#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diffraction grating has 6000 lines per centimeter ruled on it. What is th83: vvuk3+/gip y fyche angular separation / uvv :pfhi8+gc3yy3kbetween the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550 nm?

A. $20.5^{\circ}$

B. $30.5^{\circ}$

C. $40.5^{\circ}$

D. $50.5^{\circ}$

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77#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

White light is spread out into spectral hues by a grating. If the grating has tb0 hdl t orto6(9lvx(1o43uy2000 lines per centimt hrut63x1 (o o(90d4l btyvoleter, at what angle will red light (640 nm) appear in the first order?

A. $3.57^{\circ}$

B. $7.35^{\circ}$

C. $11.2^{\circ}$

D. $13.4^{\circ}$

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78#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A He-Ne laser (632.8 nm) is used to calibrate a w8e jqnxzpe3 ,;zh0(mgrating. If the first-order maximum occurs azne(jzq mhp;x8e 3 w,0t $20.5^{\circ}$, what is the grating constant (the distance between the slits)?

A. $1.81 \; mm$

B. $2.20 \; mm$

C. $3.62 \; mm$

D. $4.52 \; mm$

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79#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Monochromatic light of wauuz,g o3oi y8 adq:b-;d;ff :ad62tmyvelength 500 nm is incident normally on a grating. If the third-order maximum of the diffraction pattern is observed a g;a;3tqfzb8-oyd,a :oium fu6y2d: dt $32.0^{\circ}$, what is the grating constant (distance between the slits)?

A. $0.93 \; mm$

B. $1.4 \; mm$

C. $2.8 \; mm$

D. $8.5 \; mm$

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80#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Monochromatic light of wavelength 500 nm is incident normally on a g+(q xq zq/e-hbrating. If the third-order maximum of the diffraction pattern is observez (q+ x/hbq-eqd at $32.0^{\circ}$, how many total number of maxima can be seen?

A. 5

B. 7

C. 10

D. 11

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81#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A glass plate 2.5 cm long is separated from another glass plate at onf :ifblb.u zoy2ku -e /(-8bnio n93nhe end by a strand of someone's hair (diameter 0.010 mm). How z-neoib2 hbf u(/ oykl 8bfn39.:inu-far apart are the adjacent interference bands when viewed with light of wavelength 600 nm?

A. $0.25 \; mm$

B. $0.50 \; mm$

C. $0.75 \; mm$

D. $1.0 \; mm$

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82#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A soap bubble has an index of refraction: esph yo.ct4/v3wss6 of 1.33. What minimum thickness of this bubble will ensure maximum reflectanwc.63ots hv/ :4s peysce of normally incident 530 nm wavelength light?

A. $24.9 \; nm$

B. $99.6 \; nm$

C. $199 \; nm$

D. $398 \; nm$

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83#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 500 nm illumin,n1xl5z qv ;u sdx.d3uates a soap film ( n = 1.33). What is the mini dud u.51xvl;s3x nzq,mum thickness of film that will give an interference when the light is incident normally on it?

A. $24 \; nm$

B. $94 \; nm$

C. $188 \; nm$

D. $376 \; nm$

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84#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the minimum thickjwa xty(, gtxk/;*2zc ness of a nonreflecting film coating (n = 1.30) on a glass 2xjg;x ,a(z tc*kt/y wlens (n = 1.50) for wavelength 500 nm?

A. $250 \; nm$

B. $192 \; nm$

C. $167 \; nm$

D. $96.2 \; nm$

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85#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

An ideal polarizer is placed in a beam of unpolarized light qlduha(+ 9mqts0j eo)+(* tksand the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with its referqdtokh +*e0)jtlm ((s+qu sa9red direction rotated $40^{\circ}$ to that of the first polarizer. What is the intensity of the beam after it has passed through both polarizers?

A. 0.77

B. 0.64

C. 0.59

D. 0.41

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86#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A polarizer (with its prefehkcs 2 -+*oqv8(mnlzfrred direction rotated $30^{\circ}$ to the vertical) is placed in a beam of unpolarized light of intensity 1. After passing through the polarizer, the beam's intensity is

A. 0.25.

B. 0.50.

C. 0.87.

D. 0.75.

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87#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A beam of unpolarized light in air strikes a flat piece of: 8hs(tyszpktl 2.cn+ glass at an angle of h :t8l+z s.p2yn(sctk$57.3^{\circ}$. If the reflected beam is completely polarized, what is the index of refraction of the glass?

A. 1.50

B. 1.52

C. 1.54

D. 1.56

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88#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Unpolarized light is passed through a polarizer-analyzer combination. Thyx ol8o/2u*btsh9ev2 e transmission axes of the polarizer and the s2l2*ouy hb9xeto/ v8analyzer are at $30.0^{\circ}$ to each other. What percentage of the unpolarized light gets through the combination?

A. 37.5%

B. 50%

C. 75%

D. 100%

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89#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

How far above the horizon is the Moon whpz3 cc)dh2+aw en its image reflected in calm water is completely +dah c)cpw23zpolarized?

A. $36.9^{\circ}$

B. $43.2^{\circ}$

C. $46.8^{\circ}$

D. $53.1^{\circ}$

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90#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A beam of light passes throug0z2wa ujw75 uigif,)o h a polarizer and then an analyzer. In this process, the intensity of tagjz)0fu, w57ui w2oihe light transmitted is reduced to 10% of the intensity incident on the analyzer. What is the angle between the axes of the polarizer and the analyzer?

A. $18^{\circ}$

B. $22^{\circ}$

C. $68^{\circ}$

D. $72^{\circ}$

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91#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the Brewster's angle for light travez p:f*v7 b2m2 gotivo0ling in vacuum and reflecting off a piece oo2vf:z ib7gopv*tm 0 2f glass of index of refraction 1.48?

A. $31.9^{\circ}$

B. $39.8^{\circ}$

C. $45.3^{\circ}$

D. $56.0^{\circ}$

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