Physics Unit24: Wave Nature of Light

1#

State Huygen's principle.ko17( u: rze+4qdywwx

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 falsen8c;vylby :( 7veb/wfilvrv; /d7o8g 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 at * s.qebu7hx2htributed 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 ligfs(t+4 e doeyyj.j+)rht 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 differnqr:8w:. s nibent 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 travelid8e5 tjoej:j:ng in air, enters a piece of g je:jd5:oj t8elass (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 light0py*(ss7. fwuo3 einp3 qu5jp (wavelength = 590 nm), originally traveling in air, enters a 5*.uip upesso(pqf3n 0 7y3jw piece of glass (index of refraction 1.50), its wavelength

A. increases by a factor of 1.50.

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

C. is unaffected.

D. none of the given answers

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What principle is responsible for light spreading as it pas:verp:k5d ,z tses through a narrow slit k:r5d ep,zv:t?

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 obw5h:t:1tvqyrtbwsxvk*;1p c cl 8,y *jects such as buildings, whereas light is not noticeably di8 s;v,*wyx qy:l1pr5c :b t1wcthtvk*ffracted. 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 responsible for alternating light and dark bands wi88r0w z nqcw2mkm j6b8kf:l-hen light passes throu8mw 8-w ifj rck8nl6mq2bz0k:gh two or more narrow slits?

A. refraction

B. polarization

C. dispersion

D. interference

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two light sources are sai7q1z3u dfc:fnd 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 e + r jj0-5( y1u;ptw4mefmifmstriking a screen are in phase wit5pfyj(;frt-j+1ei0u 4mmw m eh each other?

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

B. They are traveling at the same speed.

C. They have the same wavelength.

D. They alternately reinforce and cancel each other.

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two beams of coherent light travel different paths +eboqw gbi*t a0mw6-,-)sv;e p+opho arriving at point P. If the maximum constructive interference is to occur at point P, the two beams mseow-;0obig h, * t a)wp6+qepo+v m-bust

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 ehcau2:j 6y3 ddifferent paths arriving at point P. If the maximum destructive interference is je a: yd326cuhto 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 4/b peip*crg 5central bright spot in a double-slit experiment, light from eab5p/eipg *4r cch 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 wi ;44vv.zyoxcentral bright spot in a double-slit experiment, light from each openi iy;w4v.xz4o vng arrives

A. in phase.

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

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

D. none of the given answers

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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

At the second maxima on either side of the central bright spot in a double-royv2c;1w *c n 9hoq2l)v,ufwslit expe1h2cwncvyf, qv o)*wo rlu2;9riment, light from

A. each opening travels the same distance.

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

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

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

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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a Young's double slit experiment, if the separation between the slit kb5i zbg.dxt,/+ml;g s decreases, what happens to the distance between the interference fringeb /gtkm ldb+zi.5g;, xs?

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 iv bkun (ggxa1c*ug7ksdo0; a u6(q07ks observed that the distance between adjacent maxima on a remote screen is 1.0 cm. Ws;1u(b7x6k* 0v(7u0oauca k gdkn ggq hat happens to the distance between adjacent maxima when the slit separation is cut in half?

A. It increases to 2.0 cm.

B. It increases to 4.0 cm.

C. It decreases to 0.50 cm.

D. It decreases to 0.25 cm.

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20#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

One beam of coherent light xr7z ; rvk c-dmcu4r9+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 Youngch**-ehya.u/p2ccw7f:) ,wuo u rj o f's double slit experiment arrives at a point on the screen one-h uch).,y*ecw rojow2u*ufc -ph/:7afalf wavelength behind the wave from the other slit, which is observed at that point?

A. bright fringe

B. dark fringe

C. gray fringe

D. multi-colored fringe

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22#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Why would it be impossible to o+9sfywdyip1l xub :j-39m ibm j72sc9btain interference fringes in a double-slit experiment if the separation of the sli9sid7i:bf+wjsmx2 by9y- 3c9j1m p lu ts 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 pattern1d5r4c oeh p7k using monochromatic li41rd 7coe5h kpght 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 ses zx(b;f88yxz vt 9h:iparates white light into different colorshf(zs88 x;xy9bv z i:t is

A. refraction.

B. polarization.

C. dispersion.

D. total internal reflection.

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25#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The principle which a bkok.c+o, u */b5ah+t5iq mhallows 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 k:6zluht4d3irshx8 ,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 longer than( yvd 0 r/n szum2w;oi9*dbw3s 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 wb xqe .h76wce3hen passing from air to glw.e63c x7bhq eass?

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 undr/ 3/gm ep*rkxergoes the smallest refraction when passing from air to glasxgm//rker3 p *s?

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 s5j 4y.tr uj4orides, at an angle bet y5rru4j.o tj4ween $0^{\circ}$ 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 so lkb7 qv;ts7-gd/eq+gurce. If she now holds up two fingers, with a vste bkg+7d/ vq7- lq;gery small gap 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 l v pf, +ye/p0y, m/faie6uc0gthe width of the slit increases, what happens to the width of the central maxi/eyy,e i /up6f0+c pfl0g ma,vmum 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;pfv dp9+c-7 8 hsx/jrksaewgm8d:1(sl 1 ;mjq one has 4000 lines per cm and the other one has 6000 lines per cm. Make a statement comparing the dispersion of the two gratjpp8j -d8h /vsg q1lfa+sm9;r1d7x c :w(kemsings.

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

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

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

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

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35#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Consider two diffraction gratings with the same slit separation, the only d(uadr 53u lkakxnz2:( ifference being that one grating has 3 slits and the other 4 slits. If both gratings are illuminated with 23 ar a( zl5xdn:ukku(a beam of the same monochromatic light, make a statement concerning the separation between the orders.

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

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

C. Both gratings produce the same separation between orders.

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

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36#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The colors on an oil slick are caused by rn t6x;-utu.i ygaa /o(l*3qdseflection 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 monochromx.hj . idg,i+batic light waves can interfere constructively or destrd,+. ihxb.jg iuctively, 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 o-,nn h. ep*ose/xm+ais traveling in glass, strikes an air boundary, there a ox/eem-+pno hns* ,.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, whic5mjx3frkj 4c+, w 5sekh is traveling in air, is reflected by a glass surface, therec fm k+3jw4 j5,krs5ex 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 bepqti6 b-73abn5,jrm me7lymdd n(.r:comes very much thinner than the wavelength of blue light, the fildm :67qenmdt(i3-lr p5by n7,j rbma .m

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 istv4zncx)snh-q / (0vz the minimum thickness of magnesium fluoride coating that must (v qh0-zn4 v)cntz/ xsbe 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 place:elzm 2 6i0txyd on a flat glass plate and illuminated from above with monochromatic red light. When viewed from above, concentr0ilm ex 2yt6z:ic 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 cnfpzlti(nf7r qsmn/ ; 5k1v2 5ertain sunglasses can reduce glare fn 5 q zp(/v2nr17imfs5; kflntrom reflected surfaces?

A. refraction

B. polarization

C. diffraction

D. total internal reflection

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44#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

For a beam of light, the c +,cxmuyq j4g8-l8cvdirection 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 libwberb2w8ip 5gk6g. b:wc3j/ ke a Polaroid fir:jpc w g6kbw5gb2i3/ .bbwe8lm?

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 okh f7 x*p7-o9o9dbsudf two Polaroid films are perpendicular to each other, whath7b k- do9*dspo7uf9x is the percentage of the incident light which will pass the two films?

A. 0%

B. 25%

C. 50%

D. 75%

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47#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Sunlight reflected from the 3o0 n +kxtyv, cmx;b;oaj2 .fdsurface of a lake

A. is unpolarized.

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

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

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

E. none of the given answers

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48#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The polarization of sunlight is grea uqijmca4 x+;7test 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 +0 ,keehcmz, iexhibited?

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 appeakqt2 wjr5) 8d9gkh8sars to be more blue toward the zenith (overhead) than it does toward the horizon. Thit )w8jkq 8dh5gar29sks 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 vac/hy-f+ho 0za3fdiqmw 1:) (mfia4 ido uum. It passes into glass, which has an index of refr1/ oz -idf whi4)03:fmd(qamah yi+foaction of 1.50. What is the wavelength of the light in the glass?

A. $600 \; nm$

B. $500 \; nm$

C. $400 \; nm$

D. $300 \; nm$

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53#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light has wavelength 600 nm in a vacuum. It passes into glass, whq: w-e5khw x-hich has an index of refraction of 1.50. What is the frequency ox -k:w-qwhe 5hf 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 glasrez g61+z3hu*g4ql es s, which has an index of refraction of 1.50. *q+3e4ze 6gl uhzs1rgWhat 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 zb2+37bpb qs( xcd1(jjhqngr9g2 6ew550 nm in vacuum is found to travel at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the index of refraction of the liquid.

A. 0.65

B. 1.53

C. 1.96

D. 5.50

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56#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 550 nm in air is found to travel at l/ydy8* d i1by$1.96 \times 10^8 \; m/s$ 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 n(yt bemczvco).6 bl-5m 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 fazu:gan4ttv-vr 83 qa *z1 bxi3lls on these slits, and produces a fifth order interference fringe at an angleaq:avt3igrzztx 831nv-u b 4* of $32.3^{\circ}$. What is the wavelength of the light?

A. $164 \; nm$

B. $416 \; nm$

C. $614 \; nm$

D. $641 \; nm$

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59#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 575 nm falls on a double-slit and the third order uj+,1wl*qe mybright fringe is 1+wjlq ,uye*m seen at an angle of $6.5^{\circ}$. What is the separation between the double slits?

A. $5.0 \; mm$

B. $10 \; mm$

C. $15 \; mm$

D. $20 \; mm$

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60#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a Young's double slit experiment, if the separation between the tbhb/z1r f,fd ,wo slits is 0.050 mm and the distance from the slits to a screen is 2b/1f, zrdbfh ,.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 experi* qix oz:i(9gqment, the slit separation is 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate the slits. A screen is placed 2.0 m from the slits. At what distance from the central maximum on the screen will a bright fringe from one pattern first coin*i qqoi( 9gz:xcide 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 wavelengt5qxe1 f22fs5czoj 8rp,(ced ik /4cyd h 634 nm falls on the slits. If there is a screen 6.0 m away, how farff(zq5jyo4xk e1c8cd de2p25cr/ i, s 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 sox5k3k:( d(bctz wr )betup that has a slit separation of 30.0 mm. The resultant bright fringe separation is c3rzxd(o( k)b:wktb 52.15 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, 480ql pt 2)9z,mev nm and 700 nm, strikes a plain piece of glass at an angle ,ze9pmt2l)q v of incidence of 60e. The index of refraction of the glass is 1.4830 at 480 nm and 1.4760 at 700 nm. Determine the angle between the two beams in the glass.

A. $0.10^{\circ}$

B. $0.15^{\circ}$

C. $0.20^{\circ}$

D. $0.25^{\circ}$

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65#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A ray of light consisting of blue light (wavelength 480 nm) and red light (wav)enh) blpmv 9n52pu5e elength 670 nm) is incident on a thick piece of n l259e v) 5nhmepub)pglass 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 grenj68qc43 ;x+h: jxj4szvcmm. What is the angular width of the central difj eq+zrnc4hv 6x g3s4x:8jj;cfraction 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 ils0jws5) sk9ov*f7 dj ydmhe 2;luminated by light of 550 nm wavelength. What is the angular separation between the jh j;fd*ymsw e0 52kvd9s7)osfirst 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 slit 0.75 mm w0zvnqb 1n . ll2wz-gx5ide. At what distance from the slit should a screen be placed if the second dark fringe in tx 5lq-ngz0vnzl .b1w2he 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 610rd9 c5or 2e9kt nm is incident on a slit 0.20 mm wide and the diffraction pattern i9dc to2e9 rr5ks produced on a screen that is 1.5 m from the slit. What is the width of the central maximum?

A. $0.34 \; cm$

B. $0.68 \; cm$

C. $0.92 \; cm$

D. $1.2 \; cm$

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70#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 580 i-7 c:5ouvnvm nm is incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the position of the first order d -5:v7minucov ark 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 incidemk r4m 9a03gf-q7, sl12rryzyfp ,sin nt on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the width of the central maximr fg4yqnsif,, yr-p2z1l9kram370 smum.

A. $0.26 \; mm$

B. $1.9 \; mm$

C. $3.9 \; mm$

D. $7.7 \; mm$

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72#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When light illuminates a grating with 7000 lines per centimeter, its sp * g1.rljl+amecond order maximum iapglm 1.l *rj+s 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 perr exfm-+9y h5z cm. The angle between the central maximum and the fourth order 5h +mxf yr9e-zmaximum 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 iih(uwru: z60jsm.k rs* f32hvt7f c 3wncident on a grating that is 75 mm wide and ruled with 50,000 lines. The second-order maximum isju m(zh6:vr *cus kw 3 r.h0iwtfs2f73 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 expek/rzio;(j8x q:ojmj , riment, light of 600 nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen. A second monochimoq (j,: /; rjk8jzoxromatic 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 the second source?

A. $479 \; nm$

B. $497 \; nm$

C. $749 \; nm$

D. $794 \; nm$

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76#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diffraction grating has 6000 lines per centimeter ruled on it. ;ujwu5xr/ywu.bti*;r.f6 0d e0 q xrlWhat is the angular separation between the second and the third orders of0x w dx; uetubyr0.5/;lqi wuj.r *6rn 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 q a*ha1pstz*bh7ipz1:0wv.r into spectral hues by a grating. If the grating has 2000 lines per centimeter, at what angle will red light (640 nm) appear in the 1zia0thqh1z s*:rp.va 7 *pwbfirst 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 5*dxuoa xq2cm6p( c(,oq .gqm a grating. If the first-order maximq*mg(qp c.56om x xuoda,(q2 cum 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 grating.)bhw fc2(pknhxj- ,2q If the third-order maximum o kcf2hbxn(h pq)j-w,2f 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 50mwe5al1;;k1( n c umpp0 nm is incident normally on a grating. If the third-order maximum of the diffraction;p15menpc1u(a; w mlk 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 se) jr,m ie4rabx (cw8a5parated 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 v(j,5)eiwbam c rx 8r4aiewed 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 minimuxot8sh.j60/h+ khm xu8eo 5drm thickness of this bubble will ensure maximum reflectance of normally incident 530 nm wavelengt8 eush 05mk+hojthd.6ox/x 8rh 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 50 bi 6 ntii7taz86:)yxb0 nm illuminates a soap film ( n = 1.33). What is the minimum thickness of film that wi87t:an txii6 )yb6bzill 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 coati5prso)4z6rc up o:(pz ng (n = 1.30) on a glass lens (n = 1.50) for wavec pz(p)r or:54u6sz oplength 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 and the intensity o)*,u/vzn s( a)ed xo6eklc h::gos(brf the transmitted light is 1. A second ideal polarizer is placed in the beam with its refesx)kavzo ehu )l (g6e:/ds:ocn*b,(r rred 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 rollk( z2a 6m4: xl8psm0aabp o0tated $30^{\circ}$ 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 pie5dof.ukzd4d,kxza;l:m wl+l1d, i + ice of glass at an angle of dkidk;+z mwzl:oxad4d1ilu+ ,l5f.,$57.3^{\circ}$. 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-analyzerxx t1 ct9,yiu) combination. The transmission axes of the pol9yxuct1 i),t xarizer 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 reflz k2h so(g*jl:ected in calm water is completely polarize o hk(l:jg2zs*d?

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 wca * 4x-ogak+b s.is8dd46yrt, r y0uan analyzer. In this process, the intensity of the light transmitted is reduced to 10+ r-y,xau wk.y4*s0a d4bdcsi8r 6gto % 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 an6u2u 2s w gfj28hw ubqs/(eeg)x9ug;ogle for light traveling in vacuum and reflecting off a piece of glass of index of refraction 1.22u oebwgfgwsqs(ux/g)uu 6 jh;e298 48?

A. $31.9^{\circ}$

B. $39.8^{\circ}$

C. $45.3^{\circ}$

D. $56.0^{\circ}$

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