Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
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Chapter 35.2, Problem 35.3CE
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Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound waves in phase at 688 HzHz. Take the speed of sound in air to be 344 m/sm/s. What is the shortest distance d you need to walk forward to be at a point where you cannot hear the speakers? The forward direction is defined as being perpendicular to a line joining the two speakers and you start walking from the line that joins the two speakers.
A person in a whispering gallery standing at one focus of the ellipse can whisper and be heard by a person standing at the other focus because all the sound waves that reach the ceiling are reflected to the other person. If a whispering gallery has a length of 68 meters, and the foci are located 16 meters from the center, find the height of the ceiling at the center.
A loudspeaker having a diaphragm that vibrates at 1250 Hz is traveling at 80 m/s directly toward a pair of holes in a very large wall in a region for which the speed of sound is 344 m/s. You observe that the sound coming through the openings first cancels at 11.4 deg with respect to the original direction of the speaker when observed far from the wall.
How far apart are the two openings? What angles would the sound first cancel if the source stopped moving?
Chapter 35 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 35.1 - Perhaps Newton never observed a diffraction...Ch. 35.1 - Prob. 35.2CECh. 35.2 - Prob. 35.3CECh. 35.3 - Prob. 35.4CECh. 35.4 - When we studied Youngs double-slit experiment, we...Ch. 35.6 - Prob. 35.6CECh. 35 - Light Is a Wave C As shown in Figure P35.1, spray...Ch. 35 - Sound Wave Interference Revisited Draw two...Ch. 35 - Prob. 3PQCh. 35 - You are seated on a couch equidistant between two...
Ch. 35 - Prob. 5PQCh. 35 - Prob. 6PQCh. 35 - A student shines a red laser pointer with a...Ch. 35 - Monochromatic light is incident on a pair of slits...Ch. 35 - Prob. 9PQCh. 35 - In a Youngs double-slit experiment with microwaves...Ch. 35 - A beam from a helium-neon laser with wavelength...Ch. 35 - Prob. 12PQCh. 35 - Prob. 13PQCh. 35 - Prob. 14PQCh. 35 - Light from a sodium vapor lamp ( = 589 nm) forms...Ch. 35 - Prob. 16PQCh. 35 - Prob. 17PQCh. 35 - Prob. 18PQCh. 35 - Prob. 19PQCh. 35 - Prob. 20PQCh. 35 - Prob. 21PQCh. 35 - Prob. 22PQCh. 35 - Prob. 23PQCh. 35 - Figure P35.24 shows the diffraction patterns...Ch. 35 - Prob. 25PQCh. 35 - Prob. 26PQCh. 35 - A thread must have a uniform thickness of 0.525...Ch. 35 - Prob. 28PQCh. 35 - Prob. 29PQCh. 35 - A radio wave of wavelength 21.5 cm passes through...Ch. 35 - Prob. 31PQCh. 35 - Prob. 32PQCh. 35 - A single slit is illuminated by light consisting...Ch. 35 - Prob. 34PQCh. 35 - Prob. 35PQCh. 35 - Prob. 36PQCh. 35 - Prob. 37PQCh. 35 - Prob. 38PQCh. 35 - Prob. 39PQCh. 35 - Prob. 40PQCh. 35 - Prob. 41PQCh. 35 - Prob. 42PQCh. 35 - Prob. 43PQCh. 35 - Prob. 44PQCh. 35 - Prob. 45PQCh. 35 - Prob. 46PQCh. 35 - Prob. 47PQCh. 35 - Prob. 48PQCh. 35 - Figure P35.49 shows the intensity of the...Ch. 35 - Prob. 50PQCh. 35 - Prob. 51PQCh. 35 - Prob. 52PQCh. 35 - Light of wavelength 750.0 nm passes through a...Ch. 35 - Prob. 54PQCh. 35 - Prob. 55PQCh. 35 - Prob. 56PQCh. 35 - Light of wavelength 515 nm is incident on two...Ch. 35 - Light of wavelength 515 nm is incident on two...Ch. 35 - A Two slits are separated by distance d and each...Ch. 35 - Prob. 60PQCh. 35 - Prob. 61PQCh. 35 - If you spray paint through two slits, what pattern...Ch. 35 - Prob. 63PQCh. 35 - Prob. 64PQCh. 35 - Prob. 65PQCh. 35 - Prob. 66PQCh. 35 - Prob. 67PQCh. 35 - Prob. 68PQCh. 35 - Prob. 69PQCh. 35 - Prob. 70PQCh. 35 - Prob. 71PQCh. 35 - Prob. 72PQCh. 35 - Prob. 73PQCh. 35 - Prob. 74PQCh. 35 - Prob. 75PQCh. 35 - Prob. 76PQCh. 35 - Prob. 77PQCh. 35 - Another way to construct a double-slit experiment...Ch. 35 - Prob. 79PQCh. 35 - Prob. 80PQCh. 35 - Table P35.80 presents data gathered by students...Ch. 35 - Prob. 82PQCh. 35 - Prob. 83PQCh. 35 - Prob. 84PQCh. 35 - Prob. 85PQCh. 35 - Prob. 86PQCh. 35 - Prob. 87PQCh. 35 - Prob. 88PQCh. 35 - A One of the slits in a Youngs double-slit...Ch. 35 - Prob. 90PQ
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- A theatrical smoke machine fills the space bet barrier and the viewing screen in the Youngs d experiment shown in Figure CQ37.9. Would t show evidence of interference within this space your answer.arrow_forwardYou are seated on a couch equidistant between two speakers. The speakers are 2.0 m apart and you are seated 4.0 m away from the point between the speakers as shown in Figure P35.4. Both speakers play an A note (a constant frequency of 440 Hz) in phase and at the same volume. As you move left and right along the couch, you notice that the volume alternates between minimum and maximum due to interference effects. Assume the speed of sound is 343 m/s. a. When you are seated at the center of the couch, is the sound a maximum or minimum in volume? b. If you slide along the couch to the left or right, approximately how far do you need to move until you reach the next location that has the same volume? (Hint: You may wish to obtain an exact expression and then use a spreadsheet or trial and error to find an approximate solution.) FIGURE P35.4arrow_forwardLight Is a Wave C As shown in Figure P35.1, spray paint can be used with a stencil to produce an image that has sharp edges. Should you model the paint as waves or as particles? Explain. FIGURE P35.1arrow_forward
- The figure shows the light intensity on a screen behind a single slit. The wavelength of the light is 510 nm and the screen is 1.3 m behind the slit. What is the width (in mm ) of the slit?Express your answer in millimeters to two significant figures.arrow_forwardThe figure shows a loudspeaker A and point C, where a listener is positioned. [AC| = 4.50 m and the angle 8 = 42 °. A second loudspeaker B is located somewhere to the left of A. Both speakers vibrate in phase and are playing a 69.0 Hz tone. The speed of sound is 343 m/s. Excluding point (A), what is the fourth closest to speaker A that speaker B can be located, so that the listener hears maximum sound?arrow_forwardWhat If? Suppose light strikes a single slit of width a at an angle from the perpendicular direction as shown in Figure P37.6. Show that Equation 37.1, the condition for destructive interference, must be modified to read sindark=masinm=1,2,3,arrow_forward
- A loudspeaker having a diaphragm that vibrates at 970 HzHz is traveling at 70.0 m/sm/s directly toward a pair of holes in a very large wall in a region for which the speed of sound is 344 m/sm/s. You observe that the sound coming through the openings first cancels at 10.4 ∘∘ with respect to the original direction of the speaker when observed far from the wall. How far apart are the two openings? At what positive angle would the sound first cancel if the source stopped moving?arrow_forwardThis picture shows a top view of a person with a set of 12 speakers around the person. Which of the above speakers has the largest interaural time difference (ITD) and reaches the right ear before the left ear?arrow_forwardLight with a wavelength of lambda = 519 nm is incident on a single slit of width w = 3.5 micrometersA screen is located t = 0.15 m behind the slit and an interference pattern has formed on it. Part A: what is the distance between the central bright spot and first dark fringe , D , in metersarrow_forward
- The figure shows a loudspeaker A and point C, where a listener is positioned. [AC| = 4.00 m and the angle 8 = 44 °. Asecond loudspeaker B is located somewhere to the left of A. The speakers vibrate out of phase and are playing a 61.0 Hztone. The speed of sound is 343 m/s. What is the third closest to speaker A that speaker B can be located, so that thelistener hears maximum sound?arrow_forwardAnswer to the following questions. What is the wavelength of a monochromatic light of frequency 5.5x1014 Hz? __________nm This monochromatic light falls on 10 slits separated by 0.04 mm. What is the position of the first maximum on a screen that is 2 m from the slits? _____cm What is the position of the third maximum on that same screen? _______cm What is the separation between the first and third maxima on a screen? ________cmarrow_forwardLight of a wavelength of 620nm is incident upon a screen that has two slits cut into it. On the far side of the slits you observe the first order fringes located at an angle of 0.45o from the central fringe when the light hits a screen. What is the separation of the slits? (Give your answer in x10-6m to 1 decimal place.)arrow_forward
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