Physics Unit24: Wave Nature of Light

1#

State Huygen's principle sqcih;zk z9cs6g. iu3fz:(b5.

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 fa.zvl+tmp h(: nke)dz 6lse 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 attribmp-4vwd, rr dvp4tn54t-(nch uted 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 attribut /t bkhhrzd61pol(8*ned 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 different opticabzfdge2x r7-0 v8/iy tl 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 = 590 nm), origi reb;9mcyi2l 9nally traveling in air, enters a piece of glass (index of ie29rlb9 ;cm yrefraction 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 (waveleng)tgamt ebxg/7 ) 6-m*mgynror :oso,3th = 590 nm), originally traveling in air, enters a piece of g7mrg6om:x stt* o3,g)yeomga/ br ) n-lass (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 resp9asbp.h -s k.sq- ; ebze5 7haow-g8adonsible for light spreading as it passes through a narrow sl-s.8za; 9q-.ap s -hebagb5 hsed 7wokit?

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 buildings, whereas 7g5x howpqj *+light is not noticeably diffr *hxpg+j75q owacted. Why 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 responsrts;ha/+ 8xj jible for alternating light and dark bands when light passes through two or more jhx /rt8j;a+snarrow 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 tvr d2ppbw602 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 avg ),xsz3h j3dre in phase with each otherj,) ds3x3zgh v?

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 coherentu.w5/o )5blbprhr +7 c goq-ra light travel different paths arriving at point P. If the maximum constructive interference i5u.l- qhoaco/r )pr 7wb5bg +rs 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 coherenyc.ev;.h9jnstuq 9 4qt light travel different paths arriving at point P. If the maximum destructive interference is to occe49. .h sn;qyv uqjc9tur 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 ccj(8 fm 9i3zpsafw -ha l+0dv0entral bright spot in a double-slit experiment, light from each open 0f3vla0 ihcs+j 8-p9z( wafdming 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 a dodd ;iso8 28 own0emr)yuble-slit experiment, light fromy 02orden oi8dmw 8)s; 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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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 centrg 1 mks.tk6br)al bright spot in a double-slit experiment, light from1ks) rkbtm. 6g

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 i0t/)nnxk31(vl g u cgthe separation between the slits decreases, what happens to the(3 g1/luntgv kc)i0 xn distance between 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 tab(n)m;lha q wd+i:j5he distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distancw q(5a nljha)im +;:bde 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 light travels y*qih1luyr)fj l0wb / wcf6,*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 experowxfvm ,, ye u4+.14bnk);h m(z jbmjniment arrives at a point on the screen one-half wavelength behind the wave from the other slit, whiy ;umb(mz en, +41mwn 4j,bofh )jxkv.ch 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 interference fringes in a double-sln40d0 rcu mm:g9opwle+mcz j+u 63px8it experiment if the separatip c03p0n6 el8wzuum g4 comrm+9djx:+ on 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 interferevnh mmz2- aegt5s j303nce pattern using monochromatic liz5-m3jv0se3ahm 2g ntght 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 separatjg* 6 xu*yhhb/ /xy2wqes white light into different colors i bqgy uwxjhy*6x2//h*s

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 allowsmg)7ftp9 a 5(nj4z ,zbbfvqf9o 0lnu. a rainbow to 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 51 d w7w4s;z g80m2wc oeojouvthan 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 loti*zkz s/740*tt1aif*z (xtmsb 3yw enger 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 refraction when passi -wt57mezhrw9 ;db)( tovaz.ong from air to glassmebzdzwa v9o;(5-wt7 .rot)h?

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 k *qnwc0::v s96vlg oipassing from air to gl0go kvwvl6s:c*q9 i:nass?

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 wiiicp-d 6s(1k dth parallel sides, at an angle betwd1d-p sc( ki6ieen $0^{\circ}$ 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 she m-ih,hz3,aiq now holds up two fingers, with a very small gqah,-3i,hz m iap between 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 width8x qo k,.k1qgj of the slit increases, whak .1go8j xkqq,t happens 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 gratings; one has 4000u9gcy59j2;a m0qkgkiqemay v.) kf70 lines per cm and the other one has 6000 lines per cm. Make a statement comparing the dispersion of the twocka;uqk gfm5g) m0kqy29 v9aj.7 y 0ie 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 szs b0e4 ezb,l */ew:c8wd5yd veparation, 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 mdl z8 *,bybze 5scv :w/0e4ewdonochromatic 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 reflectide*sg-7bf(6bca8lyp2 k +et eon 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 constructively 1a98l fg)h +v+levbhm or destructively, depending on their phase divlh)vge9++ 1f ahbm l8fference. 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, strikes an air boundary,zck sjb* 14lcyp,b66l there 6z46lb*c,pbsjlc1k yis

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 gla yr+0h)oe 5fwlss surface, there is+)rw5ley ho f0

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 whit syhx:kf4 i8(j2ygfa:e light. As the film becomes very much thinner than the wavelength of blue lightaghf(::si 4kx2jyf y8, 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 in 2m;obn, qcfy3magnesium 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 refraction of magnesium ffc;mon 2,q y3bluoride 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 flatycnx(t) 8ok1 l glass plate and illuminated 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 lens wherno1)lt8c x( yke 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 responsc h1 xk21 7s5qgkzpk+yible for the fact that certain sunglasses can reduce glare from reflect2 pzs1g+5c xy kk1k7qhed 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, *bqi +2 tw hb/y4hsli5j(* bybthe direction 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 au7 9 uprt1uy./ar0qmos +m 0wf dichroic material like a Polaroidrya0mwo / 9uu1 .trums0 pqf7+ 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 kjri(* p12r j0u3z4oja 6dl ngaxes of two Polaroid films are perpendicular to each other, what is the percentana3k64 gpjdj1(l*oruz 0j2 i rge 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 from the surfi zd7) .gxs,;-gqxj1 wuommh 7ace 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 sqy2bv0kw8h o2v.cuv . unlight 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 diffraction Nuf2rzfw16,qsrajpw - 2mnh :8OT 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 skyen: dqsr1aw 5 v 3q1a. q-odq6;q:vapf appears to be more blue toward the zenith (overhead) than it does toward the hori:ve.:q s1w; 3aq1vn5aqdp-qfqrod a6zon. 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 02p ezwn 7ca.ryu-pt4passes into glass, which has an index of refraction of 1.50. What is the y 0paep uc2nw.4-tzr7wavelength 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. It passes into gvsxc8c5vpvs ;+ - (hnllass, which has an index of refraction of 1.50. What is the frequency of the light insin-;5ssv8cp (vc vxlh+de 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 nmnxbh6u nq ,q(;7akix* in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is t7b,i nn6(k; xhxquqa*he 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 is found to tsj.9u*+ws ny-.-44eawk nbfrsq ,kl lravel 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 isht an9*c-2z04d v hofqbl:f/i 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 in air is fj6/zrso9j flutv9 k2otl 0y./ound 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, 0qa8h.m ;+qmt-ea sx1 jcpqh mm apart. Monochromatic light falls on these slits, and produces a fifth order interference fringe at; qjxm+qpmh0. sq,ac-a 18 eht 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-slitg02krbw+vz 5xz/yg* 1upwiy8 and the third order bright fringe is seen at an anglezp1+y*r0 /z8g5xgw2 b u vwiky 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 stgt5+(fiwrz.l 3ctp )* /sz2 4dgejx glits is 0.050 mm and the distance from the slits to a scree4t/p j+rwl ggt(czz*difg )esx 5.t32n 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 two wavelengtkoyuuc0v bg37 r03y,5ww;zx yhs, 750 nm and 900 nm, illuminate the slits. A screen is placed 2.0 m from the slits. At what distance from the central max w yboxkc0y 0v5 ,3wzg73;uuryimum 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. Monochromatiwug k:1,3p z 7-ofjk k8ge.vzxc light of wavelength 634 nm falls on the slits.g .8kp,7g3zuvj-eof:xkw z1 k 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 i6,vjx f:d,kk6ce 7c55 ra wkvencident on a Young's double slit setup that has a slit separation of 30.0 mm. The resultant bright fringe separatia,vce:5wvdx5 , k67ce krfj 6kon 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 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,sgr uq 4/z8lw3g a /p2apgpd*nn-*dp0 strikes a plain piece of glass at an angle of incidence of 60e. The index of refraction of the glass is 1.4830 at 48/ nggupd/- pp0 4rzd2p *3nwa*qsalg80 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 (wavelen (ud9)k 4esca pmi7f dz;cfw7/gth 480 nm) and red light (wavelength 670 nm) is incidud4d e7fk(c;f p9 mw/)7ciazs ent 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.+*i8ia klb*d q What is the angular width of the *8i*ablidq+ k 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 mm wide, is illuminated by light of 550 nmg+1*4il 37 k1 hncnzxzcw+nir wavelength hn37x izrc4n+g1 cilkwz+*n1. What is the angular separation between the first two minima on either side of the central 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 singl-m /no 6w,ilm4s,sr .:w0,bky gft npte slit 0.75 mm wide. At what distance from the slit should a screen be placed if the second dark frin.r/,-,g 6 oi fsnwst4:wmnb0,lm tkpy ge 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 incia/3yg0 spbw l-dent 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 w-yp abg/0l3 scentral 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 obse/xxdzu*p+ w9 prving screen is placed 2.00 m from the slit. Find the position of the first order daxd* /p 9wu+xpzrk 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 wo5ean 61avuun0 b(p u-. .qmgmidth 0.300 mm. An observing screen is placed 2.00 mnm1-.u.ng(ub6ue 5a0 voqp am 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 a grating with 7000 linesrc o /u.ztvxm/h8*t 7h per centimeter, its second order t /zuvx7 rt*ch8/ .hmomaximum 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. The angle between the centraljx+mc0*bvmz ,)o wr k0vdf0on+h24ie maximum and the fourth order maximum c fin* kz2 ,0ro) j+db4v0 mv+mwhox0eis $47.2^{\circ}$. 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 incide5)dqzkd //asr nt on a grating that is 75 mm wide and ruled with 50,000 lines. The second-or rad )/qd5kzs/der 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 gfqtb g . .wwvu)2nd68wavelength 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. What is the wavelength of the light from t 8)ggtvb.dw.fqw2 6unhe 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 v kwuzt xr/r5kpshc016x o+m7 o q)p;;per centimeter ruled on it. What is the angular separation between the second and the third oro /rx ; p )5cswr+q;thuokx1m6kp0 vz7ders 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 d)p).+bxz 7)fh lqctjout into spectral hues by a grating. If the grating has 2000 linelp) q 7z)jxch+ b)td.fs per centimeter, 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 grating. If the firstufu)z7:)mz3wnw 0qcl -order maximfq:3)u)lw 0nc um7 zzwum 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 normallmj7 5pl/h47txode qe*23m lqty on a grating. If the third-ord725*l tplm /qdqe3j he7mt o4xer maximum 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 wavelength 500 nm is incident normally t7qky 1 e86xo9p5h/r* qboaeo : r/boq8h vhr2on a grating. If the third-order xth ek/qbrpo o5obh1/v88ora2rye q 76 9:* hqmaximum 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 ( ns o n8nkv(ca3al/xacj9x)2is separated from 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 2nc(8acn)l3 9 xo( xna/kvajs 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 minimum thic4 8*hamh-az)oqygn 4 ekness of this bua8-e*hgzo m4h)4 qynabble will ensure maximum reflectance 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 illuminates a soap film ( n = 1.33). Wsz5-bh qy(1f a d7kfhl/fi6 5wxm.g 5vhat is the minimum thickness of film1gi kvw aq -6shxhdz5fly/5f.f7b 5 (m 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 thickness of a nonreflecting film coating (n = 1z3ag-uyrh 48wu+m w 8u.30) on a glass lens (n =hw838yu- m4z ga+uurw 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 unpol3-q( et3k,mg)em fiwj,7kbcsarized light and the intensity of the transmitted light is 1. A second ideal polarizer is placed in the beam with iwk-,s fmi )gcbmt7q, jeke3( 3ts 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 preferree39fgs :hrk j9tfnr-3tx v:1 b,j1bvmd 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 im.*59jex vg9 zkqt ik),8led qn air strikes a flat piece of glass at an angle of k d 8.59eig)lqm,qk*j9xezt v$57.3^{\circ}$. 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-analyzerq)jp;jch 03 u749himo:fp bru combination. The transmission axes of the polarizer a op4fq9uum hi ;7crj)3j0pb:hnd 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 reflected up d-nwzra7 d+-uz-- gin calm water is completelwa+gu p-uz --r 7d-dnzy 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 thisirb4 5njia z (c23hdt+n g6f0l process, the intensity of the light transmitted is reduced to 10% of the intensit2c4bndr (lz fjag30h65+t iiny 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 lightvhr3g vq4 pm tqg81tjl8 m(59d traveling in vacuum and reflecting off a piece of glass of index of refraction 1.483 gvpt t8v94hr qqldg158jm(m?

A. $31.9^{\circ}$

B. $39.8^{\circ}$

C. $45.3^{\circ}$

D. $56.0^{\circ}$

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