Physics Unit24: Wave Nature of Light

1#

State Huygen's princi 8igpjj eb(2tyc,92dm ple.

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 followin94) amcjej v w l2ew)dn e9av7cnujlw, -.3n1mg 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 te ixw )ha8phx(xb2dq7ls54w,xd hu,s t6hs)/ o

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 attribuu05 fpo nfoat:0vtkw(;h 0s) fted 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(b q xs pr/ddbiw6xm0 3i1n83y medium of different optical density,

A. its speed and frequency change.

B. its speed and wavelength change.

C. its frequency and wavelength change.

D. its speed, frequency, and wavelength change.

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a beam of light (wavebpn .xi(3j3.kzfnlrk(j 5zjjt d2: +blength = 590 nm), originally traveling in air, enters a piece of glass (index of refran:.z.5xdkk(j+j (bj ziblfj tp2n3r 3ction 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, entetx (i))2q0tdgx* fk omrs a piece of glass (index ox2 kq *0)f(o)xitdmtgf 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 passes through a q7qj (jss,sga8a* cs*0hqi. jnarrow jih qs7cj.* aja,sqs0qs*8(gslit?

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 lig1:l oa;ia -wl0gl ue*qht is not notica :u-lq*w1 lie;ogl0aeably diffracted. 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 anx2h6z: eb:hvjd dark bands when light passz bjehv::x6 h2es through 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 said to m2 +6 ee9uggcmbe 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 are in phau hp.z4-adv 6ose with ep-v h6.oz 4udaach 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 tr5 8qimbiroo b3 )ol1(cavel different paths arriving at point P. If the maximum ( ml8iibo 35bqo)1corconstructive interference is to occur at point P, the two beams must

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

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

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

D. can not be determined.

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two beams of coherent light travel different paths axlc,2)ai9j4 drev nh1rriving at point P. If the maximum destructive interference is h2j1avr x)d9lc4e , into 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 spo9v(qs t u2ucro,9fg8ot in a double-slit experiment, light from each openqr(t9u ofc,2ovs ug 98ing 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 5boeq9sygo-yo / oo,t8:ue - sd111p lhpf sg1double-slit experiment, light from each opening arrive sge y, y sfs/qgodo81l95:oo1pbpu 1hteo1--s

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 4shyt acq*g)4y8h yi)central bright spot in a double-slit experiment, light fy4tyi)84hg)* c yshaqrom

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 dt(e0s 2ixtta7 ecreases, what happens to the distance between the interfereea(7ts2 0ti xtnce 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,bokmg -kf 7mq,+* qm5e it is observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the +mk-m beom g k*q5,q7fdistance 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 p5u+ac lrlbuob3f f81n2 h4c8j ath $P_1$ in arriving at point Q and another coherent beam travels path $P_2$ in arriving at the same point. If these two beams are to interfere destructively, the path difference $P_1 - P_2$ must be equal to

A. an odd number of half-wavelengths.

B. zero.

C. a whole number of wavelengths.

D. a whole number of half-wavelengths.

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21#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

If a wave from one slit of a Young's double slit experiment arrives at jm pbf (4vktd-.d *tj6a point on tdk (f pvj4md-t*6b j.the screen one-half 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 obtain interference fringes czuu./ty z/k 6o sn0-tin a double-slit experiment if the separation of the slits isu6.uk tz z0/cno-s/ty 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 maxismumwk lj4zd qd1-hx u:5896zma in a double-slit interference pattern usi-q su619w4dlz u:dhz8xk5mjmng monochromatic 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 prism separates t 9l7 f.7rygmtwhite light into different color mglt.79fy7trs 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 al,+*vjytm)avguybzng+ vv83s. c (n o9 lows 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 thal:aaa4 rq:x kc x9x0z p.9ahu*n 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 wavelengtct mj7z1fv74.wt;mdih slightly longer 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 p5 uanjyi.;8;ff ye(uf assing from air to glasa. fu;y5;(feyjni8f u s?

A. red

B. yellow

C. green

D. violet

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30#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which color of light undergoes the smallest refraction when passing f0ir7qir2 bwz;5 ipdi. rom air to iz pb .i;qdw0 irr27i5glass?

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 infje 3 6f/k/xgncident on a thick glass plate with parallel sides, at an a 6jnkxg/ff3/engle between $0^{\circ}$ and $90^{\circ}$ with the normal. Which color emerges from the other side first?

A. red

B. green

C. violet

D. None of the given: all colors emerge at the same time.

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32#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A person gazes at a very distant lig+ztib gl :tzz(6ik* i1qu9r s c133wgtht source. If she now holds up two fingers, with a very small gap between them, and looks at the light source, she williqtzct * w:zg gzsi1(+r k396iu1tl3b 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 experwgqst)zebik2 2 5p,k0 iment, if the width of the slit increases, what happens to the width of the central maximum on azp2kki w0,es5 q g)b2t 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; o +nlgv7j kxx6fm1 6t) ec9kr,one has 4000 lines per cm and the other one har+x) v9gmk6cxlnf71 oj te,k6s 6000 lines per cm. Make a statement comparing the dispersion of the two gratings.

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

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

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

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

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35#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Consider two diffractionol1 or*dx x:jr97, je/fs+v xs gratings with the same slit separation, the only difference being that one grating has 3 slits and the other 4 slits. If both grav: xe,/r1xjxjf9 o*s+do7sl rtings are illuminated 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 by refl ht0+p(owkvf6sv8 :5loqe y 9e(sn/x kection 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 interf gl ,+4z vsw3n17egxsgere constructively or destructively, depending on wlzxg 4 ,e3s+7nvggs1their 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 glas77*mo +pyrwq ds, strikes an air boundary, there isp7 mq*7 d+yorw

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 glass surfa 3y5+b1x6.dzqbux ifdcebd31xdz+ . f5 u6qbixy, there is

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

B. no phase change in the reflected beam.

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

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

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40#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A soap film is being viewed in white light. zfp7( b 8i m*4tvw;-gnjizry.As the film becomes very much thinner than the wavelength on m y4(vfprgjtb;i zw78-.* zif 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 8 eh47- ez( xohcewea1z-e 1holight in magnesium fluoride, what is the minimum thickness of magnesium eah1h18hz7-wo-o eex ce(ze4 fluoride 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 on a flat glass pl *.0k2-nk:jviyl bpsl63sa nd ;5ioon ate and illuminated from above with monochromatic red o n6o:0ljs*b3k2y 5d- i .kp;ivsnlna light. When viewed from above, concentric bands of red and dark are observed. What does one observe at the exact center of the lens where the lens and the glass plate are in direct contact?

A. a bright red spot

B. a dark spot

C. a rainbow of color

D. a bright spot that is some color other than red

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43#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What principle is responsibtua(3k5jq 9v(0pobp n3.w zywle for the fact that certain sunglasses can reduce glare fr 0.pw3okq 93nb(p tj wv(azyu5om 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 direction of d3r/yl5wj y z3polarization 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 b:u7 lfklqy21q 7lrv ,light in a dichroic material like a Polarbfkvl7r,q 1lu72:qy loid film?

A. reflection

B. refraction

C. selective absorption

D. scattering

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46#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When the transmission axes of two Polaryj y f-*c//k llpo:9etoid films are perpendicular to each other, wj-:9*kp/lt /eocly yf hat 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 sur /k5./*ie cmobgmvb- 84fzvgjface 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 +4l9*k m6qhp9ags;o7szmd sfsunlight 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 i p2e,mf9u 9vnnv n5lu6s diffraction NOT exhibited?

A. viewing a light source through a small pinhole

B. examining a crystal by X-rays

C. using a microscope under maximum magnification

D. resolving two nearby stars with a telescope

E. determining the direction of polarization with a birefringent crystal

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50#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

On a clear day, the sky appears tol *v mr:zxv-c4(8kjut be more blue toward the zenith (overhead) than it rlzx:-8vctu (m v*4jk does toward 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 vacuum. It passes into glass, which has a q*zoet fi;-:)m( ilren index of refraction of 1.50. What is the wavelength of the :zi( -*e olqe);frmtilight 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 pass(y:2 kdeucg( les into glass, which has an index of refraction of 1.l g2yu ke((c:d50. What is the frequency of the light inside the glass?

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

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

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

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

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54#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light has a wavelength of 600 nm in a vacuum. It passes into glar9dtt: xn4:htmy;qxc/3 ye * gss, which has an index of refraction of /y*er tch9 t:qyx:4;n m3xtgd 1.50. What is the speed of the light in the glass?

A. $3.0 \times 10^{8} \; m/s$

B. $2.5 \times 10^{8} \; m/s$

C. $2.0 \times 10^{8} \; m/s$

D. $1.5 \times 10^{8} \; m/s$

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55#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 550 nm in vacuum i*fu a7vcqi y s:d2tr*8g( a+aks 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 n-.sdmwmm e9(dn-ky9 lm in air is 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 foundfjx (wlzrn8 +f /mw3td0of)d4 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 these sll x8wyq,cwj 30qqe11yits, and produces a fifth order inte,e3 8jqlcq 11qy 0xywwrference fringe at an angle of $32.3^{\circ}$. What is the wavelength of the light?

A. $164 \; nm$

B. $416 \; nm$

C. $614 \; nm$

D. $641 \; nm$

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59#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 575 nm falls on a doubbq 2ddk)fl e+0le-slit and the third order bright fringe ikdde)l2+ q0f bs 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 two slits isc2ju03 o*sxqm 0.050 mm and the distance from the slits to a screen 32*0c qso uxjmis 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, l8hjnk:kg 7k w00 py/yand 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 bry 7k0:wjpg8k hn kl0y/ight fringe from one pattern first coincide with a bright fringe from the other?

A. $1.5 \; mm$

B. $3.0 \; mm$

C. $4.5 \; mm$

D. $6.0 \; mm$

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62#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Two thin slits are 0.050 mm apart. Monochromatic li(- * zef3-ktxz:fosjnght of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent interference f-t f-( ko3sjfz: ne*zxringes?

A. $0.76 \; mm$

B. $7.6 \; mm$

C. $7.6 \; cm$

D. $76 \; cm$

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63#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A monochromatic light is incident on a Young's double slit setup that has a slx;czh y( pxdium 8fgg5u*c hg;9z9d(5it separation of 30.0 mm. The resultant bright fringe separation is 2.15 cm on a screen 1.20 m from the double slit. What is the separation beti;uf c*y9( dg9 (gumz5 ;dcz5hx 8xphgween 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, sia-le1.t0 q2jy u 1 w,aut0(e;fyx msdtrikes a plain piece of glass at an angle of incidence of 60e. The index of refraction of the glass is 1.4830 at 480 nm and 1.4760 atl i yafesueyw d.-j (,11;02mtxat0qu 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 (wavelengwrl y-u1)bzdmw t61 foea:8c r3ycg:,th 480 nm) and red light (wavelength 670 nm) is incident on a thi1bgrrw :) e t8duyf 1am:-occz6wly ,3ck 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 mm0riovkc i)h glv1; 0t7. What is the angular widgk0 c0 lvii7r)1oth;vth of the central diffraction peak?

A. $0.10^{\circ}$

B. $0.15^{\circ}$

C. $0.20^{\circ}$

D. $0.30^{\circ}$

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67#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A single slit, which is 0.050 mm wide, is illuminated by ligh)/1:uqu 3tep:qbr:uz ni) u vft of 550 nm wavelength. What is the angular separation between t upv /) r)ez:ftnuu:1:uqq3bihe 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 slit 0.75 mm wids i -y 2f72boca8o+y a-(i5sd9znmatbe. At what distance from the slit should a screen becm (d5z8 sn a-fo2i7y+at-oysab9 bi2 placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center of the screen?

A. $0.39 \; m$

B. $0.93 \; m$

C. $1.1 \; m$

D. $1.9 \; m$

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69#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 610 nm is incident on a slit 0.20 mm wide and the d g(,t3m zdm6-:;ytqg apzsre0iffraction pattern;y(gqms3td6zerat ,: 0g-mp z is 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 nm is incident on a slit of width 0.300 mm. An obsy5hz9,rpo zeg11 0 v i 6aryyl4q1m0wserving screen is placed 2.00 m from the slit. Find the poiyo1 lq51zyrmw , 9 4pe6a0z 10vhgyrssition of the first order dark fringe from the center of the screen.

A. $0.26 \; mm$

B. $1.9 \; mm$

C. $3.9 \; mm$

D. $7.7 \; mm$

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71#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Light of wavelength 580 nm is incident on a slit of wi/odnkk ) 1-drvdth 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the width of the central maximum.rd-v o/dkk)1 n

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 cent6(abm*.e*mjs,zk233sx ectnz ivs -g h t 5-vtimeter, its second order maximum s ek(xa .**3vt zn5ti,-3ebgt2m czvss-hj6m 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 cd30+cz 7ecgp(oa twmh *qa72j entral maximum and the fourth order maximum is2atz c7od (ge*j3p h0c+wm q7a $47.2^{\circ}$. What is the wavelength of the light?

A. $138 \; nm$

B. $183 \; nm$

C. $367 \; nm$

D. $637 \; nm$

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74#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Monochromatic light is incident on a grating that is 75 mm wide and ruledy+x9:j9)y* hra yjooy with 50,000 lines. The second-order maximum is seen at oryax9h:y 9)y*yj + jo$32.5^{\circ}$. 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 fiylve6nshi-lapb2c:z ) n 95 +yrst-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 lighc)enaib2vy:9+y z - l5 s6pnlht 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 haf lvlph o6,95qs 6000 lines per centimeter ruled on it. What is the angular separation b9vq oh,lpl 65fetween the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550 nm?

A. $20.5^{\circ}$

B. $30.5^{\circ}$

C. $40.5^{\circ}$

D. $50.5^{\circ}$

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77#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

White light is spread out into spectral hues by d2 ez1.yhqn j3a grating. If the grating has 2000 lines per centimeter, at what angle will yn.3h 2zje1q dred 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) )am(1a tnngw+q/.j0 veapg1l,o zv:dis used to calibrate a grating. If the first-order maximum occur:t v z,w je /1lng)g 0vo+pmq.aa1(adns 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 wavele;nq/nb .ihaaz; p7 4 (ujcopa;ngth 500 nm is incident normally on a grating. If the third-order mabc /4;q aip(noua;n.a pj ;hz7ximum 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 on a gratingtr sr6y( by3,3 gk1pyz. If the third-order maximum of the diffraction pattern is oby3br1kr ,6(yytps 3zgserved at $32.0^{\circ}$, how many total number of maxima can be seen?

A. 5

B. 7

C. 10

D. 11

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81#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A glass plate 2.5 cm long is separated from another glass platfd7k-3d b:zdn e at one end by a strand of someone's hair (diameter 0.010 mm). How far apart are thdkd zd:n-7b3f e adjacent interference bands when viewed with light of wavelength 600 nm?

A. $0.25 \; mm$

B. $0.50 \; mm$

C. $0.75 \; mm$

D. $1.0 \; mm$

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82#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A soap bubble has an index of refraction of 1.33. What minimum thickness ozg2t7+sv qpk3 /9ih)j+k9 7ruq lfs rof this bubble wil hsq+grv3/ 79krks2pjoq7z l+ ti)9ufl 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). Wh,gbo)mf8i *wnat is the minimum thick8* ,nmgfbi )woness of film 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 = 1.30) on aa8dph e,6ute*iz0r 0k glass lens (n = 1.50) for wavedp uh6 atee0zik0*8,rlength 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 a1luh 4-2y5zzl9tbjv of unpolarized light and the intensity of the tra 5hjv9l41yztu zb-al2nsmitted light is 1. A second ideal polarizer is placed in the beam with its referred direction rotated $40^{\circ}$ to that of the first polarizer. What is the intensity of the beam after it has passed through both polarizers?

A. 0.77

B. 0.64

C. 0.59

D. 0.41

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86#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A polarizer (with its preferred l vmvj (2e 4i8e)8 hxrwinjav-*h*gb6 direction rotated $30^{\circ}$ to the vertical) is placed in a beam of unpolarized light of intensity 1. After passing through the polarizer, the beam's intensity is

A. 0.25.

B. 0.50.

C. 0.87.

D. 0.75.

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87#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A beam of unpolarized light in air strikes f(- .yl1gjafvsz hl 0,a flat piece of glass at an angle of -fyshfa( 0jlgv,.lz1$57.3^{\circ}$. 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-analpby hq - z*kvb52c9,gl0- o; wflnlh4dyzer combination. The transmission axes of the pola nvpw ho,gh40-d9qfc5y;b2* -lbkl zlrizer 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 2g.k 40p;wh2p/zx o, 6b* fwywjrxvilreflected in calm water is completely polaxy2xlwwpkr4 w* / jf,6 o.;bhg2izp 0vrized?

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 polarizerl)hoh 5 8ymwo7g m--p)pua3ov and then an analyzer. In this process, the intensity of the light transmitted is reduceh u -aoy8voo7 mp)w)l5m3 -pghd to 10% of the intensity incident on the analyzer. What is the angle between the axes of the polarizer and the analyzer?

A. $18^{\circ}$

B. $22^{\circ}$

C. $68^{\circ}$

D. $72^{\circ}$

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91#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the Brewster's angle for light traveling in vacuum n1.534okvxrmho.swbsx j( 7 xand reflecting off a piece of glass of inde7xmknx ovs xh.bj (53o 14w.rsx of refraction 1.48?

A. $31.9^{\circ}$

B. $39.8^{\circ}$

C. $45.3^{\circ}$

D. $56.0^{\circ}$

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