Physics Unit24: Wave Nature of Light - 51fly国际课程 (51fly.win)

1#

State Huygen's princip*2 *.6zyv2eroun bo5qfle9jn le.

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 statementap pnqci;0a5*2y rv; f?

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 attribut7ngw stj+8 vc+wv+8+ufuge *l ed 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 light is attrib rl7vj2l . 21fs7.5xpipssueduted 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 diffeorm7)e6 h6xvp rent 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 = 9rt8ksg4xsjpxgg- 62ota w4;590 nm), originally traveling in air, enters a pie6rt s29xg4;8 w-jtka4pox gs gce 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), orid-ey(zua: fcaj1jwsjr 6* :/c7o mk- xginally traveling in air, enters a piece of glass (index of refraction 1.50), it*1-mja ucd-wkcy(z67 sro:fa e/: jxjs 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 pokv jl1;u: zs)ks)m1casses through a narrow slo u)ks1mc svk):j1;zlit?

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 diffracte (0 *-lgce na-mizhvf;d by large objects such as buildings, whereas light is not noticeably diffracted. Wcz(a h -g0f-m;*leivn hy is 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 responsible for alternating light and dark bands whbpm19 l8t. sci5 kvc,1mcum1p.w8vbben light passes through two or more narrow wpc9b.1bpc8mc ,s.i1 8lbmtuv1v mk5slits?

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 toh:+z04ykth rq 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 w6j0cd qwd,x3ce say that two light rays striking a screen are in phase with each oth,dj06 w xcd3cqer?

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 tr-t(; /e47u9canrzx81 t l.lirunc0 gba/ rzhravel different paths arriving at point P. If the maximum constructive interference is to occur at point;rux -rtlr1cnr0/8z(h 4be gc.luza9 ai7 /n t 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 8y;c5g-e*qliu gb2)6y vdwh s the maximum destruct- ld 56yeih w8u)q2gbgv; ycs*ive 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 cczqce 4/;r1 /,ynftbpjd (xt ,entral bright spot in a double-slit exc;q/yzf , r(1x,nce dj 4tp/btperiment, 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 axopk 3uizt.nd4+ur62 double-slit experiment, light from each openix2u6+tk rnz. 3d pi4oung 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 centrara-jbi* 4+ koki0vg65* vku uvl bright spot in a double-slit experiment, b-kv +6au o *rigik05j4ku *vvlight 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 d7p2g /* goi.mp( hwbkcecreases, what happens to the distance between the interference fringesk i.b2(og wpmc*/pgh 7?

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 observon m *c ;cyz h.2xs8k2a2-udfyed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima when the slit separatiounfy ;o2yxk2c- mz.as* c8hd 2n 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 lightmuo 99neya l 1g2+a *+s8butwt 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 exhpom1s(zzl ,9periment arrives at a point on the screen one-half wavelength behind the wave from(19msz ,h zolp 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 obtainb6/f-hf3oh h:cg4zo /.c od(qyb pb0u interference fringes in a double-slit experiment if the separation of the slits is less than the wavelength ofzdb/:qc3p6h/uoo-y f .(og4bhbchf0 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 interference pattelo( 2l125 fjlwfp(oda rn using monochromatic li dw(1 j22olo5l( faflpght 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 sez 1sop2thsh)r2*fx7nr8 ftq9 wvh.8 wparates white light into different colors iq.z2 otf9s 1*sr8 xp72f)hn vwt8h whrs

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 to e ddn,raqmc/2o5.cyozx(j;g+d23 f (ufmm m)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 shor3 n-fvdb-q0,xh a/zq nter 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 longer than 750 nm bb7 g.owddn3lgg+0f1 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 unde nzj8e jju.o68lrr -o1rgoes the greatest refraction when passing from air to 86 nrjeju.8jr 1 oolz-glass?

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 refraction when passing from afc pid8p ok-kb 2)bb.,qhx;6 wir to glas bppkiw6qf, d8- .bxbc oh)2;ks?

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 wi) c*psi8du6 qoth parallel sides, at an an*upios 8cdq 6)gle between $0^{\circ}$ 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. If )px.hl/tjpcaw4smb 0l 5;xf / she now holds up two fingers, with a very small gap between them, and looks at the light source, she will 5ta)sx; fhcmlp.wplb /j4x 0/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 thn3(hqqm a2fw2e slit increases, what happen 32afq n2m(hwqs to the width of the central 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 graf)ml1htc nt 5);+gnxk tings; one has 4000 lines per cm and the other one hag nk)t1) 5+hcl tfmn;xs 6000 lines per cm. Make a statement 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 diffractionga /vo: l8h3j:. zzazms6b r3l gratings with the same slit separation, the only difference 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 separati3al8m/l6bz .:v3 jar :z shogzon 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 reflectiodm1xizpj u 9biwj:k0. u67am*n 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 cksf2u e*faem3sxnde4)5( o 9 xonstructively or destructively, depending on their phase diffeex *nf32sesko )m (u ed954xfarence. 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 glass, stq, r 8xkhs6 *wpc+l6rzrikes an air boundary, there isz rrl8,*q6sxcphw+ k6

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 reflecxw cqhme:dr1)75fg* ited by a glass surface, there hx de 5) *:fcgrqi71mwis

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 *cljd552egv1q uq;on in white light. As the film becomes very much thinner than the wavelength of blue light, the fiev5 j*51o2dql qc;nuglm

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 in magnesium fluoride, what:m8i,mceky)v ksf. g/ 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 refract,8cy mfsg:i.vekm/k )ion 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 from above wit uly4epepfv 3en (4xc56py4. ih monochromatic red light. When viewed f( c 6fp4.ei4vu3le 4ep yypx5nrom 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 that certain sunglasc x(:a+;w j(omefxb-p p57vcfses can reduce glare from refle wmp o(-ax jcffc(ev: bx7;5+pcted 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 polarization is p/sq 6)anno5q80lvf m 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 likemu4 d9pvyrj 6*y :5ilk a Polaroid filmu6jdi 5p9v rlmy y4*:k?

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 aznxsyu g3 5o5mv1q8a-re perpendicular to each other, what is the percentage of th svmoa-yx 3n quz15g85e 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 hlg b;p*(dfjix9 g l m1-4gop ozj357-1 wotthlake

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 sunligh8aowvf4*o1iz3h:yd9d4f / bctmwo o/t is greatest 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 diffrab-s cb:z)n .ziction 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 :qw-beszi06xbn + l f.be more blue toward the zenith (overhead) than it does toward the horizon. Teq.wnx0 :lfzbi+ sb-6 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 int up ;0.+mo;bhy f4kyrao glass, which has an index of refraction of 1.50. What is the wavelength of thm4;fabrkh y ;yup+0o.e 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. It passes u ,b5by z19u57l3oh sr(nmqftinto glass, which has an index of refraction of 37y,bb1mo5u5fz9(ur tlh nqs 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 vacuum. It passes into gl:uxkz- wx6zm5 :z /ofhq9u)l gass, which has an index of refraction ofx /kg 9m:h)o5:zuzu6x fqw-zl 1.50. What is the speed of the light 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 vacuum 6dh1hqe;l5 v)zw+-ylxz *cdi 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 travel k qft3ffr:9i*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 travel ;mha9rwz/ fjho3 0s/a;kdf-b 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. Monochromat*6uccmrou 8gsj/hoqd n5nd6, 6e 0x;r;qzxs/ic light falls on these slits, and produces a fifth order interference fringe;s u /ur*6mz0jrh6n dx6;ecdns og q/q ,co85x 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 fanu7g i,kre vv*u,5sr+tz;te*lls on a double-slit and the third order bright fringe,u, v 7ugksnti +v*5 terz;*re 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 t 139dq1ubgdnehe two slits is 0.050 mm and the distance from the sdn e3 1ud1gbq9lits 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 sf36 y (t ql5pkj7ob3iteparation is 2.0 mm, and two wavelengths, 750 nm and 900 3l6y p k7(ot iqtfb53jnm, 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 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 wavelerq8fdp w p4 5zpv8qut/ oa100wngth 634 nm falls on the slits. If there is a screen 6.0 m away, howpd/op100zpf qwa4r w8q8 5 utv 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 a Young's double slit setup that has a j4am1p1y0a y x(d.obfslit 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 brigaa d(141mp.yxj yof0 bht fringe and the 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 andj-u) ab0 ucs5 z4dx2;sswk8(xmuu /lt 700 nm, strikes a plain piece of glass at an angle of incidence of 60e. The index of refraction of the glaxcsmu 4a s )(sbdwul-/5u8jt ;z2 u0kxss 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 qa,.+hnm bgeigh f+9. light (wavelength+.+e,9fb mg hignaq .h 670 nm) is incident on a 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. Wh(nt(bsy )qaet7 d*i9qat is the angular width of the centn (aiq b*tq(e)yt s9d7ral 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 light of 55q+heg:wi/ uf 70 nm wavelength. What is the angular separation between the first two minima on either side of the central:7he +fq/iguw 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 is incident on a single slia fg*:gq3j;igh h, b:v:l y7ylt 0.75 mm wide. At what distance from the slit should bg,g: *il7l q: :yfhyjvg3 ;haa screen be 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 610te av(/a1+th x nm is incident on a slit 0.20 mm wide and the diffraction pattern is produced on a screen that is 1.5 m from the slit. What is the width of the cev/ ea t1t+x(ahntral 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. An plv;6 xg* qb*kl lv.*aobserving screen is placed 2.00 m from the slit. Find the v*lq*.pbvlg;ka*6x l 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. An yu vzzw24 mcl vuvw4y(8r2x1* observing screen is zc2ymuw4vr ux* v 214vl(wyz8 placed 2.00 m from the slit. Find the width of 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/,fvtpdr l25y a grating with 7000 lines per centimeter, its second orde/yv2d5pl f,rtr 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 c zgosm d*c7bl:4cv4g /o.+rf am. The angle between the central maximum ao r4:4 o7z cdglfbc/+m*asv.g nd 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 and ruled withncj:8pa jtv0zeqg a 94af.r)( fgf.s( 50,00.g0gfq( fpc a8ja.()sa tnejrf49v:z0 lines. 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 of 600 nm wavelength pro05 x r )4wx3mgtybzl26z2bdi h jzyx04duces 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. What is thjw0 4dzlm zb2x)zgb iy5 x3 06xtry24he 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;(z+lh a;u znu on it. What is the angulu;lz(u;+ z nhaar separation between 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 2i01zhx-vz265 l mzffn/ kbn2y000 lines per centimeter, at what angle will red light (640 nm) anvln 6022/ zfimfkzy - xhzb51ppear 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 calib.(v+ 9grlsg1el:2wf crgjm9 o rate a grating. If the first-order maxi( +9jowr:lg 9g v.c1sfl e2mgrmum occurs 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 gratin6 2bcqz. +f1gvcgy :ebg. If the third-order maximum of the diffractcq2ev cb1bg:z g+.fy 6ion 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 wl :t*74zlcka-yef w u5avelength 500 nm is incident normally on a grating. If the third-order maximum of kat-l5:zy f*le4u7 wcthe 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 kgkn4*ei95p /;2 k:sj9o 3wgu ovdgqct84kiifrom another glass plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent interference bands when viewed with light of wavelength 600 n93:t/ *vpie ugqoi5kig4g;k42k dj8o n 9k cwsm?

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 z tlbkt0lk (bto)8:2 l9dgl9bindex of refraction of 1.33. What minimum thickness of this bubble will ensure maximum reflectance of 0b)l9 lbl t8z:kkt(dgbo92l t 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 illuminates a soa c4 fwbezi1n 6da ;pm86tc7oi:p film ( n = 1.33). What is the minimum thickness of film that will give an interference when the light is incident normally on icit w6764me f;:apoznbc1d i 8t?

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)rr glb 7uox*15bn-- rqk2hbri/o h3y film coating (n = 1.30) on a glag3) oyo-b/k5bi r xq7*hhrn-rur1l b2ss lens (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 plza0 ,6tia 6xfk fs yj6edwv*21aced in a beam of unpolarized light and the intensity of the transmitfi1wjtd02 fyz * kes6v6aax,6ted light is 1. A second ideal polarizer is placed in the beam with its referred 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 preferred direction rotate fch7 +f,wte6ud $30^{\circ}$ 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 piey 1pn.p4/ajbvwx95*c l-re y0nrzf 3 nce of glass at an angle of yr e39*-vb1.n z pn afjcn0/w4rpy5xl$57.3^{\circ}$. 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. The trcori8h2uccu n;+ )r1vansmission axes of18i2n;c +vr ruoch u)c the polarizer and the analyzer 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 when its image reflecteln5fdylfp,g -wc9n6:d in calm water is compcn9gy: -ll d,6pwf5nfletely 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 this proces3oylz1j*qm3 )svvd o4 s, the intensity of the light transmitted is reducedvo3 v1dzoq *yl3 )m4js 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 travelinpzsxc7u 8-z.*fm1 qtn g in vacuum and reflecting off a piece of glass of index mnz7p c q* xf8.stu-1zof refraction 1.48?

A. $31.9^{\circ}$

B. $39.8^{\circ}$

C. $45.3^{\circ}$

D. $56.0^{\circ}$

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