Physics Unit24: Wave Nature of Light

1#

State Huygen's principleogrhznd 4w d5nv+;k xa++tg)8 .

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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 is3r acr7,zk rd8zbss go3yo8 94 a false statement?

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 attrkhi ie637) sl; pg7u(: d-;uysls inqqibuted 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 ligx:0 te:9,olucgin* *zhik l, aht 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 awyc:0z i( jttof3;k2i medium of different 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 (wavele;c85 yy0qf rop 7mm +u eauuw5c6lu0w-ngth = 590 nm), originally traveling in air, enters a piece of glass (index of refraction 1.50), its frequencyyqcm56o+u c wml08w-fuuu057ep rya;

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), originalfm,du:-4 xomztthc p:xoxr6g+j3, :tfjy1 1 xly traveling in air, enters a pi r1 odtx6fg4f:,u-c3 xxjp+t zmht:y,o1:j mxece of glass (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 spremfh/*) a- mxsaading as it passes through a narrow slitms* ahfm-)xa /?

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 buildiky-ct5 d.o *jangs, whereas light is not noticeably diffracted. Why is t t*.5kd jao-ychis?

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 responsible for alternating light and dark bands when light p-v zcd9u;8g7 c;fo c0cw;omws asses through two or mo8c0f; o w7cswzmd cc;-v9ug;o re narrow 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 to be coherent if theytu* ybt. hx,qmp 4feck6rs ,4.

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 raysltvr 297a:e(djk f fi02j):mahpdh s) striking a screen are in phase with eachjt a9:70j)al2(hp2de msvfdf:r ikh) 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 paths sgoj+o * nm /m,6 5k1gmaiyvg.arriving at point P. If the maximum o m,v.nmsjo+*g1g/m5a y g k6iconstructive 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 point P. If wa0sbs nuw5k(scm6n9i /qmiz8m5z6 , the maximum destructive interference is to occur at point P, the 9 m/a qbmiw n(wn,zis8usscz6 5k0m56 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 eithy7;v7uke0*v 7 xqd lgp/pwk(ver side of the central bright spot in a double-slit experimentw *p 0vyk/gu( pv d7le;qkx77v, light from each 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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16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

At the first minima on either side of the central bright spot in lax( c7jgi:c5 7fx 9b /lsizgp5o ,2eya double-slit experiment, light from each open5agi2jc7cxs(b i :f/y7ll xg9 opz,5eing 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 either side of the central bright spoy:xqxjksmp7* -k2v8i t in a double-slit experimen*2j 7 ykpx- kvqs8i:xmt, 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 slits de/rzj.akqw j. +f- zb8dcreases, what happens to the distance betweenk.+d/j 8.jbzr -wzfq a the interference 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 beot h. r/.dvucar..fy)tween adjacent maxima on a remote screen is 1.0 cm. What hau.a)r/ .ovh. dfr .tcyppens 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 coherentaiyj )e5 czv(8 x0ec:-qzha s6 light 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 arrszm s 7l /n/hlswv( mr5h(*vh,ives at a point on the screen one-half wavelength behind the wavel (whns vsz*r7m/h /sm (l,vh5 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 obowq9 vu97irlad:h1d ;i j5 5ubtain interference fringes in a double-slit experiment if the separar id:wlu59 o519 v7hibjad;uqtion 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 interf*rc5o i,c z2.zch/7uq,zcy,y sf1 ggwerence pattern using monochromatic light i,/z,q7sfc5c z grc2 y,u.gcohy* 1zwis

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 light5x/e*o*z +roduw bp *0qly-rm into different colorr+blw *ru5xo*/zy0pqme *od -s is

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 zji4z8 g7*aento 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 shor+ehjh *-c,aiq t .h.yeter than 400 nm is 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 longsqi4x6x ggs-a;rj +8fad6+xger than 750 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 +:z pe6.7miu.h fkqa(u v6 cagrefraction when passing from air to g+6uv afa: i67k( .ezq.h cpmuglass?

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 t hwh+0,(5c6 kr arseuphe smallest refraction when passing from air to glahpu5 wk6a0(+eh,c rrs ss?

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 parallel sides, at:hqmu jepf /+8 an angle qe8m:uf/ + pjhbetween $0^{\circ}$ 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 very distant light source.c:wo7e-16ix50jgv12:nxmg nt1 1koimv md y i If she now holds up two fingers, with a very small gap between them, and lookc1:n 5mgw: xi0iek7ion 1d 1 v2m1yxm j6o-tgvs 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 width of the slit increaseahl5ui/v:yvnil2l 1 5 s, what happens to the width of the central maximum on a screen? i 21ulhya v/vll:i5n5

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 h3/p k0sc oe+znoh*m 0ias 4000 lines per cm and the other one has 6000 lines per cm. Make a statement comparing the dispersion oio3e0s+ c k*pnm/hzo0 f 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 only d :,vj iy;2rndnw9qbw/ ifference being that one grating 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 sv yww,nd9;q rn2bj/:i eparation 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 us:mjy j)bm( 9d+k1 egby reflection 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 monochromatic light waves can interfere constructihx zu6, 4u7hd;0.k mxo4r xoncvely or destructively, depending on their phase difference. Oux;7hn ,o 6mz hkrx4cxo0.u 4dne 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 glass9:i 9(em y6dgsv6uawo, strikes an air boundary, there i se(69:9w 6gy ovudiams

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 light, which is traveling in air, is reflected by a gsjfo6 0ott.e/lass surfaceto.eojs/t 0 6f, 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 fic wd+b -1h)ry;hv1khc lm becomes very much thinner than the wavelength of blue light,bk)yr vc+ w hd1h-h1;c 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 wavelength of light i gxo7 .l+j6j cnre)f7nn magnesium fluoride, what is the minimum thickness of magnesium fluoride coating that must be applied to a glass lenf7xr.ocnn7) 6 l+eg jjs to make it non-reflecting for that wavelength? (The index of refraction 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 *;/ doctduw0 billuminated from above with monochromatic red light. When viewed from above, concentric bands of red and dark are observed. What does one observe at the exact center of the le; bw*c/d dt0uons 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 that cerndxp:,rj wsy,q* d 9;re:dh5 ytain sunglasses can reduce glare from reflected surfaceseyr jq5d : , x*dpw;yn9hrd,:s?

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 directe)5jk w3.gfhfion of 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 polarized light in a dichroic material ls .cvjk* (9xsqolk4gctzxu/j8r:m 63 ike a Polav36uk(jxsl/ 9qx r 4c.z8*o:jgkc mstroid 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 perpendi6b0s8i(w+qenhhd ny14 j 4z9n9 f(4t dwgpulycular to each other, what is the percentage of th8hswqwte 09(94fn(1nbhgi pz 64y dl du+ny4je 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 from the surface of a lakzwbg*okz2 j arp/ )jgq (g3ux6enb ((6e

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 gre3gd .tm+c (bg i+8qaki6a:qe satest at

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 diffraction NOT m./5 1racp vfbexhibited?

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 zenith (ove-hsdd 8c-p qj6rhead) than it does toward the horizon. Tdhd8sq-p6j c-his 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 glasn/aw2 ebus0c :s, which has an index of refracti2w cabs/n:0ueon 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:nvj o5o3vzfdn5v ebp9 7cq;nw * dt5* nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the frequency of the light inside the glasstzw*:9co5dj* 7qnnf3e5;v n vdop5 vb?

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 vacuum. It passes into glass, which has s qwxl/*+2yev an index of refraction of 1.50. What is the speed of the light +esyq vxlw2 */in the glass?

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 nm in kb c4ibi; bd fhtj8 4l4.p:)qhp)kqp8vacuum 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 air is found to trav7a;of6uem gz8 7l;0npxg8 fu gel 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 in air is found to trax t9tdiuh(50xhvi ;g6 vel 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 light fal93a tmis ;gf3*md6lg vir*/t dls on these slits, and produces a fifth order interference fringe at an v3lgid im *6srft9 d/* g;3matangle 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 fggo0k ) 3mq+g xh19zhaalls on a double-slit and the third order bright fringe is seen at an angg 3q x h+gga0)1om9zkhle 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 two slits is ,a*b 2mcmnyp3 0.050 mm and the distance from the slits to a screen is 2.5 m, find the spacing between the first-ordyp acnmm, 32*ber 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 thee,2yi81ghta7wkvbm.7et7 p bqf(-j2kwk2 wo 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 fr 2eb(7hh 18 bktmk2.kif2 ,pwqw 7-tej7evyaginge from one pattern first coincide with a bright fringe from 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 mm apart. Monochromatic light of wavelenwqud:5kag*t /gq ya w 82fj l/::pd,idgth 634 nm falls on the slits. 2aqw dq:gy*k tdd5: ,jup/8/w :ia lfg If there is a screen 6.0 m away, how far 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 5s (8ex4idxqn a Young's 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 xsnq45xde8 ( ithe zeroth-order bright 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 containing two wavelengths, 480 nm and 700 nm, sv0dp :bh u(uz7oznp21nd7c h )trikes a plain piece of glass at an angle of incidence of 60e. The index of refraction of the glass is 1.4830 at 480 nm and 1.4760 at 700 nm. Determine the angle between the two beu h) uhp d(po2nb1n07zdzc v:7ams 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 7 v;nlaxu; jk;dbe:7u light (wavelength 480 nm) and red light (wavelength 670 nm) is incident on kdv7na7l:;; u bu;e jxa thick 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 width 0.20 mm. What is the a 2p/qk/-ee rb 3:j8yvzgatf3dmf2v8fngular wi8f 2etje fby3mk a8rzdg-//v2pf3q:v dth of the central 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 mozcghivufw-,mqe.58 k8 w 8 :em wide, is illuminated by light of 550 nm wavelength. What is the angular separation between the first two minima on either side of the central maximum,8w8w.f 8hzc- k :eguiqveo5m?

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 is incident on a single slit 0.75 mm w-l+s b/dy5/qy ox4lt bide. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be l+ysq54 y tl-//dbbxo1.7 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 l *k.ls6.un9b lde,3gk jzxr8and the diffraction pattern is produced on a screen that is 1.5 m fj.sd86,3z ll.exbk rn*l9gkurom 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 otrn31sr azjn5k*+ ze f(/ bnm*n a slit of width 0.300 mm. An observing screen is placed bt* zerk(5m3a s+*n1/nr zfjn2.00 m from the slit. Find 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 incident on a slit of width 0.300 mm. 7uz+7hwg 7cdl An observing screen is placed 2.00 m from the slit. Find the width of+ l77hw7 zgudc the 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 wie mc,rmn6s 2d;th 7000 lines per centimeter, its second order maximum is admcm;ns 6r 2,et $62.4^{\circ}$. 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 swx;8l;k i:rf. The angle between the central maxims wkir:l8;xf; um and 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 grating that is 75 mm wide and0.yb9w e 8fw;4pcuzul ruled with 50,000 lines. The s l8eby 0fc9u w.zw4;upecond-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 exper :-*/cr0sz9yvmfu c1vw;yi xdiment, light 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 iyxw0y uv9:;fdv z*/ r1c- mcssame diffraction grating. 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 l 9ouv(e :q.uzxxi)d(tines per centimeter ruled on it. What is the angular separation between the second and the third orders onxie uo:(uq. xt )z(9vd 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 gratin zhzd+2k v*x32fyvxub0p) -mzg has 2000 lines per centimeter, at what angle will red light (640 nm) appear in the first xf0h2k+x d bpv zuzvz3)-2m*y 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 grating. If9x q/zdydz/wlzo *-n: bwb;)q the first-order maximum occud;y)q z xdob-9wzq/wnl*:/b z rs at $20.5^{\circ}$, 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 wavelength 500 nm is incident normally on a grating.7t,re-:lpf meda) q1 r If the third-order mmd1 er l- re),7faqt:paximum of the diffraction pattern is observed at $32.0^{\circ}$, 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 waveleo9-h(m, rjo songth 500 nm is incident normally on a grating. If to,rj o9h m-so(he third-order maximum of the diffraction pattern is observed 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 one end byin9 mx)*: .i +utnbozu a strand of someonu:9)oxm+zi. b utn *nie's hair (diameter 0.010 mm). How 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 of 1.33. What minim1p x1 *2yrcy-pqhy)f jnyv -3aum thickness of this bubble will ensure maximum reflectance of norm- )j yyy f*-rahnc3y 2xvqpp11ally 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 o fh:v8:wq ;mu500 nm illuminates a soap film ( n = 1.33). What is the minimum thickness of film that will give an interference when the light is incident normally on itfvo: mw8h u;q:?

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 thickness of a nonreflecting film coating (n = 1.30)+ nvi-ur1:b in on a glass lens (n = 1.50) for wavelength 500 nm1+iuvr :b-n ni?

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 unp e 5kpvkuna;+8olarized light and the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with its referred directiok5 pn+eav8u ;kn 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 preferraxeu6-mb1t k4a pba05 ed 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 glass at an angle of yzbr88 wf t*8tsvk)utw4 fm71 tk1 fyw84tzbms78fr tuv 8 )w*$57.3^{\circ}$. 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-ana ufxhjd;8mj-d,;q;p elyzer combination. The transmission axes of the polarizer and the analyzer are at8mu;jq, xp;- edhfj;d $30.0^{\circ}$ 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,dq 60h*m /8rirqm+ 2 vciohit Moon when its image reflected in calm water is completely*+q mmi,h/dq2 r6iv trh8i0 co polarized?

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 through a polarizer and then an analyzer. In 1t2xmjxq9g .xle:c 0h this process, the intensity of the light transmitted is reduced to 10% of the intensity incident on the analyz .el 2cm9:x j1qt0xxhger. 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 traveling in v, imbkxy64jz:q;g ob( ra),pa acuum and reflecting off a piece of glass of index of refz (iyx:;a jomb,,qr4p6gabk)raction 1.48?

A. $31.9^{\circ}$

B. $39.8^{\circ}$

C. $45.3^{\circ}$

D. $56.0^{\circ}$

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