Physics Unit24: Wave Nature of Light

1#

State Huygen's principn(y1tx,mh qdn;6kn2h 4 0+it gu- fczgle.

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 followi 2 el1ye:n9dtpng is 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 attributed toj;xfy bbk+ 7,i

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 lirdni k8mle7r /z0hd(-hf/;qsght is attributed to

A. Christian Huygens.

B. Isaac Newton.

C. Max Planck.

D. Albert Einstein.

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a light wave enters into a medium of diffe tn51 4zdml84s cn3tjm;b 2mfsrent 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 = 590 nm), originally traveling in air, enj( )j;l8-bdtz 3 :zapbcy a5tsters a piece of glass (index of r bdszjt tpalj3b8;)( a-5zcy:efraction 1.50), its frequency

A. increases by a factor of 1.50.

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

C. is unaffected.

D. none of the given answers

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a beam of light (wavelength = 590 nm), originally traveling in air,tj30 p:xpvo ;x enters a piece of glass (index of refraction 1.50), p tj:x p0v3;oxits 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 lighphj0ou.y.m6, jrxtc)uv w5 k01jq 7t rt spreading as it passes through a narrow slit rk0u)vp.rutym.1 ,oq7hj5txw j6c0j?

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 buildingse7fw-g ;vn zeg3:l(pc, whereas light is not noticeably diffracted. Why3plfg e(gezc- 7;w:nv 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 a8znzpsn( m;( heze0;7muadf; lternating light and dark bands when light passes through two or more narrow slitsnmuzf(n(za;ep h7;0dm z8;s e?

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 ar m+cyd9 x0jqd tkg* vnl7my p-13u law)1q6ov*e said to be coherent if they

A. are of the same frequency.

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

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

D. are of the same frequency and amplitude.

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What do we mean when we say that two light rays strikingy+b8oi 3l;izo a screen are in phase with eac; z+3l8oyoibih 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 pathse68i )5oi nmyy38nnmvf66 vrs arriving at point P. If the maximum constructive interference is to occur at point P, the two beami ivy my)5nsmn6n6fo6e38 r8v s 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. hpbirh1ji;wn/; dnb .18 4k ubIf the maximum destructive in;n1 kb8bhi./pu dij4w r b;h1nterference is to occur at point P, the two beams must

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

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

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

D. can not be determined.

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

At the first maxima on either side of the central bright spot in a double-slity/ n kj+arr9;h0kz. i0zdgo f93y hg2t eyi9jk 9 z2h3 0fk;.h0oga r/dz ryg+ntxperiment, 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 eithe +psbmh7r6 (ugr side of the central bright spot in a double-slit experime6urpsm+7gb( hnt, 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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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

At the second maxima on eithz5787 6 okxge)ukhaa yh(h j0qer side of the central bright spot in a double-slit expe q0eoyagz6a (k75hk7u h )xj8hriment, 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 d vp;h geqarlyq-g6)v( z 8;:doecreases, what happens to the distq(yl)ev;qd8ozgh6va gr:-p ;ance 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 experimentw s)ltksno-kda w.kbe4 i 4p7(d;79oe, it is observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjaptbd7 a)7ke oi4 w 4(s;9 olkwsdk.-encent 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 5) g yj 5,osbna9j9rvllight 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 s:0dq hfkx8*h experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, wqhf:x8kdh 0s *hich 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 obtai)bae29u9x z hj1,iwzp n interference fringes in a double-slit experiment iaxw9 1pe,jb2uhz9 i)zf the separation 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 interference pat ,w:o6;fx+un bmf9t qitern using monochrom9tu :fb6xq i+wonm;f ,atic light is

A. greatest for red light.

B. greatest for green light.

C. greatest for blue light.

D. the same for all colors of light.

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24#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The principle which explains why a prj +w tt;+6rbkpism separates white light into different colors istjk rp+;t+w6b

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 allowk+z3uod7 a9 * a;btwjts 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(nb9q l60tcb a slightly shorter 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 l)h. ocr+duqa,onger 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 :qn )0fw)x3dmeg5p we greatest refraction when passing from air to glas xw0:d)mgnq )3 peew5fs?

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 smallest4b /hr xi(lp0p refraction when passing from air to glas4/xp l0(rh pbis?

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/es9v * ibmv35ymuk4vg (q5xe sides, at an angle betwiqseu4e 3v m*(y 5b9xm/5vkvgeen $0^{\circ}$ 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 now holk1+*fxg42ma9jzk2, o jmfccmds up two fingers, with a very small gap between them, and looks at the +xj o 2g,fmkm a*19zcm2c4fk jlight 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 wid2os9yb- j r3joth of the slit increases, what happens to the width of the central maximum or39jo -b syj2on 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 4000 lines per cm and the other one g;z zo,f7 b914ww3m mw 5nj-o1qgg ifnhas 6000 lines per 3go zqww1of7z-4 1gnmf,bn9gj5m;iwcm. 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 diffrack2+x7bvdxh t; hz(un7tion 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 iln+z h;kud(b72 vx h7txluminated with a beam of the same monochromatic light, make a statement concerning the separation between the orders.

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

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

C. Both gratings produce the same separation between orders.

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

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36#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The colors on an oil slick are caused lx;. lxyyaisg3u7q* dxog63;lwwb, )by 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 caix2zc3ovjm+ f ..1w tfn interfere constructively or destizoxfmcw +3v f1.2j.t ructively, depending on their phase difference. 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 ayf.*2qt2ebj(8kr xh zir boundary, therr(t q2kje2y. zhf *bx8e 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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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 bwmi((zic* / s:d1y biin air, is reflected by a glass surface, ther(czs:md/y1ii(i bwb * e is

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

B. no phase change in the reflected beam.

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

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

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40#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A soap film is being viewed in white light. As the film becom kerwti6g0 yft7h kcg1+g,(u1 es very much thinner than the wavelentwgu+0 k1ye(,tr7cg hi 1kf6g gth of blue light, the film

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

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

C. appears blue since all other colors are transmitted.

D. appears red since all other colors are transmitted.

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41#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In terms of the wavelength of light in magnesium fluoride, what is the miniwku+7wpv,v1:5c4k ycbo / s vamum thickness of magnesium fluowbvvw vp+7,y :kco 5/1k4 scuaride coating that must be applied to a glass lens 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 )yl* 9m 2zkmw+ivznlg*cu)y9v 9w bb:on a flat glass plate and illuminated from above with monochromatic red light. When viewed from above, conw v 2y9nlbvm9zwilmkgy* 9z):u c*b+)centric 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 tho *oznjaclwx5; hq36 *at certain sunglasses can reduce glare from reflected surf **o xcj6 3l;z5oaqhwnaces?

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 h 5eo;u(u8 ,y 7lyvvuk sr8z2ia1ag:bdirection 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 like a Pola6nvwjxgbm3 ddhx7mumg .tx.s*4y3 :1wx6gtmuh x jy3n bmg 7dd4. s:1*xm.v3roid 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 akgtj+di ic39 i(f* :p;t) q tan2j:hjhxes of two Polaroid films are perpendicular to each other, what is the percentage of the incident light which wij:ch tf3tp ij 9)(a:hi jkid+n*gt ;q2ll 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 snd7-dgs5 2 3p ldfw)rmurface of a lake

A. is unpolarized.

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

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

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

E. none of the given answers

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48#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The polarization of sunlight c1wb0rr yob:nu(d(i4 x8cp; ; obrs7qfd8p1 v 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 NOT exhl s+ 9z/,xfq*svd(jmvec f*g+ibited?

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 appeaifoi0ye qe;wb)s/(f +rs to be more blue toward the zenith (overhead) than it does towar +b wyie0efqf/)(is o;d the horizon. This occurs because

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

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

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

D. none of the given answers

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51#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

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

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

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

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

D. none of the given answers

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52#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light has a wavelength of 600 nm in a vacuh7 w3m.) pp)p+oh+n diswa6ggm.uz8sum. It passes into glass, which has an index of refraction of 1.50. What is the wavelength of the light in the glass?opmw6.w s) a8z3) mgihpns.pdg+7+u h

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 glass, which has an inqde4y 3 azu+ :9 er;gjivv5c)ed5e e jra+3v d)9:4cz;igeqy vuex of refraction of 1.50. What is the frequency of the light inside the glass?

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

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

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

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

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54#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light has a wavelength of 600 nm in a vacuum. It passc krfa,jsrf4x*.ne1g9 p,v8 oes into glass, which has an index of refraction of 1.50. Wkso pv.r 8g, ecjxnaf*,9f4r1hat 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 nbe+y h8gey 3b)m in vacuum is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the index of refraction of the liquid.

A. 0.65

B. 1.53

C. 1.96

D. 5.50

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56#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 550 nm in air is found to travel at 6d6y .ue/is sl$1.96 \times 10^8 \; m/s$ 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 542-ga hqkjjk nq :.5sp50 nm in air is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the wavelength of the light in the liquid.

A. $550 \; nm$

B. $359 \; nm$

C. $281 \; nm$

D. $303 \; nm$

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58#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two thin slits are 6.00 mm apart. Monochromatic light falls on kj0r85aazjv2s9t5 n 76tbcxm these slits, and produces a fifth order interference fringe at an angle ofa jzk j9snt0m2r8a vcb7xt5 56 $32.3^{\circ}$. 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 lq:ugx0vqom66k / 0 na575 nm falls on a double-slit and the third order bright fringe is seen at an angle of um6q:ov 0l/g6 k0qxan $6.5^{\circ}$. 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 sepavmt f5vo lvkh7b/40 0aration between the two slits is 0.050 mm and the distance from the slits to a screeo h0/0 vmav7l 5tb4fkvn 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 wavelen1 ylaemu3cif+j:,h:m gths, 750 nm and 900 nm, illuminate the slits. A screen is placed 2.0 m ,ae1ch :fmlm+: yij3ufrom 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;g21bciif i7h .050 mm apart. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far2i bhi1fc;7g i 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 incidzn*e 98 rkgwo uw11rn:ent on a Young's double slit setup that has a slit separation of 30.0 mm. The resultant bright fringe separation is 2.15 9nwnz81 *ugor1ekr w: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, striketsk6ziay mxzyx, hb-4 a0*;q-s 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 1.4kiqhz ; ybyta* xsxm--0z,a64760 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 (wavelen6: nhzmmf;dmo5idz ,.gth 480 nm) and red light (wavelom mz;nd.,dzf5: im h6ength 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. Whjhj/1+fajd *xtb4 j ui:-jhw*at is the angular width of the central diffraction pew+f uj41jdta*:xjj *ibj/-hhak?

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 0.050dl5)y)v 0j5i lq zw/o)fiwin( mm wide, is illuminated by light of 550 nm wavelength. What is the angular separation blz q(w)vnyiw5/ji)d0f5 iol)etween 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 single sljbc44n/tgk8w fki: z: it 0.75 mm wide. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center ofk nj: wf4izk8c b4g:/t the screen?

A. $0.39 \; m$

B. $0.93 \; m$

C. $1.1 \; m$

D. $1.9 \; m$

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69#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 610 nm is incident on a slit 0.20 mm wide and the diff)payo)- iw 8 9gz(wonxraction pattern is produced on a screen that is 1.5 m from the slit. What is 9-i8no)awp wx(z g)yo the width of the central maximum?

A. $0.34 \; cm$

B. $0.68 \; cm$

C. $0.92 \; cm$

D. $1.2 \; cm$

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70#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 580 nm is incident on a slitgps6bhm 1, cnr5.ae. c of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the position of the fb. mech cs6npa, 51gr.irst 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 okq )xc7x mzss1+3ez1s bserving screen is placed 2.00 m from the slit. Find the width of the cez ) sez17 qx1sms+cxk3ntral 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 euo; *l c97h7*cwknzio oyd53 n5b)l r7000 lines per centimeter, its second order maxiyo5inczbh57) o9;l r3k7onl uwd**ce mum 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 linesen fcevl f-/.ic85p --xhw8 pr per cm. The angle between the central maximum and the fourth order maximum i88hf- i -en5cpc-/p w.xrlvfes $47.2^{\circ}$. 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 inci(.-wxmiwh n;it2i8 d22tg ndl dent on a grating that is 75 mm wide and ruled with 5 xwin2ii22 gt tn-;8d.w(mhd l0,000 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 produces a firf 6 c8.fxb:nugst-order maximum 0.350 mm from the central maximum on a distant screen. A second monochromatic source produces a tx. c6ufg8b: nfhird-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 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 fskokkz6u3z/z 8 -+;hyc3 mzxruled on it. What is the angular separation between the second and the third orders on the same side of t6c yzz;+-8m k /uz3 sxfo3kkzhhe 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 grg (r l tw 9.d2f8x3j-e6uosovnating. If the grating has 2000 lines per centif6oest(v 2r n -83wxujlgod.9meter, 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 tzly l;u/.gp ;we7zts vj4wr8 q )s(hf0he first-order maxi4l0zf/ g(.pvrqw;u)z st8 7yw lse hj;mum 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 dpnl73 tb fukki4 wla(in-.0+on a grating. If the third-or.u3(fw+0niipt- k7lbdn ka l4der 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 inc 28xa yzqj* .cau8yh9mident normally on a grating. If the third-order maximum of the diffraction pattern is observed at h* zqaayy98. 8mj2xuc $32.0^{\circ}$, 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 glasqng8css63 y2q; j:myicpconb89* d p1s plate at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are the adjacent interference bandscp s3y;byj8sncd 8m2* 6 1p9:q cgqion 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 n.uj(f *fg qc m.:ku)sminimum thickness of this bubble will enqj)s fu.:.f* mc( guknsure 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 nmj4y3ca6zw( m j illuminates a soap film ( n = 1.33). What is the minimum thickness of film that will give an interference when the light is incident cy3za6mj w(j4 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 = 1 f+,h9c zxbp0v:qhh5jsu ft+7.30) on a glass lens (n = 1.50) for c9h v7h,tj +ub0f +p5zfhxq:swavelength 500 nm?

A. $250 \; nm$

B. $192 \; nm$

C. $167 \; nm$

D. $96.2 \; nm$

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85#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

An ideal polarizer is placed in a beam of unpolarized light jz7ol)+ 82 t(u+gp wwgdmmwb 6h ,xed5and the intensity of the transmitted light is 1. A second ideab8gdm7(2 d zp6)ht++ex ,wo5uwj wlmg l 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 rota,b9oz o d1vesftpj,wa/)f 2e1 ted $30^{\circ}$ 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 pie7 *t)f vghfr tv7b1t0rce of glass at an angle of )v1v7rfh rgt ft*b 07t$57.3^{\circ}$. 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 combinati4n/8qc a44t:bhi)ve+ erd1f foix r8d on. The transmission axes of the eo ifix)d 8ac4rb 8t n4+rhvd1e :4fq/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 reflected in cal( bkc 7k,4gq evurr:4jm water is completely po4jk c(b,rgr:k7q ve4 ularized?

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 a*z:nug8lgv.d*+ y 5evi4 pnq qnalyzer. In this process, the intensity of the light transmitted is reduced to 10% of the inte:yqplegv*d+4 *q8gnv.u 5 nzinsity 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 traveling in vacuum and reflecting of5c drh,j:fr.ugv,y lu0ws3 e,f a piece of glass of indevs. 5we:u fcrj0h,d3r ug,y, lx of refraction 1.48?

A. $31.9^{\circ}$

B. $39.8^{\circ}$

C. $45.3^{\circ}$

D. $56.0^{\circ}$

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