The figure shows an air-filled, acoustic interferometer, used to demonstrate the interference of sound waves. Sound source S is anoscillating diaphragm; D is a sound detector, such as the ear or a microphone. Path SBD can be varied in length, but path SAD is fixed. AtD, the sound wave coming along path SBD interferes with that coming along path SAD. In one demonstration, the sound intensity at Dhas a minimum value of 82.0 units at one position of the movable arm and continuously climbs to a maximum value of 1000 units whenthat arm is shifted by 2.44 cm. Find (a) the frequency of the sound emitted by the source and (b) the ratio of the amplitude at D of theSAD wave to that of the SBD wave. (Take the speed of sound to be 343 m/s.)(a) Number iUnits(b) NumberiUnits+

To solve this problem, we'll need to understand the concept of destructive and constructive…

Answered: The figure shows an air-filled,…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Similar questions

A Medical image has two adjacent structures A and B.Show that the contrast to noise ratio of A relative to B(CNRAB) is given by CNRAB=SNRA-SNRB.
Two small slits are in a thick wall, 27.5 cm apart. A sound source from the behind the wall emits a sound wave toward the wall at a frequency of 2,000 Hz. Assume the speed of sound is 342 m/s. (a) Find the (positive) angle (in degrees) between the central maximum and next maximum of sound intensity. Measure the angle from the perpendicular bisector of the line between the slits. ° (b) The sound source is now replaced by a microwave antenna, emitting microwaves with a wavelength of 2.75 cm. What would the slit separation (in cm) have to be in order to give the same angle between central and next maximum of intensity as found in part (a)? cm (c) The microwave antenna is now replaced by a monochromatic light source. If the slit separation were 1.00 µm, what frequency (in THz) of light would give the same angle between the central and next maximum of light intensity? THz
A laser beam is incident on two slits with a separation of 0.205 mm, and a screen is placed 4.95 m from the slits. If the bright interference fringes on the screen are separated by 1.56 cm, what is the wavelength of the laser light? in nanometers.
A 1,720 Hz pure tone is played on a stereo in an open field. A person stands at a point that is 8 m from one of the speakers and 8.4 m from the other. Does the person hear the tone? ( assume the speed of sound is 344 m/s). The path difference of _____ is _____ times the wavelength of the tone, giving ____ interference.
1Two sources are in phase with one another and emit waves with a wavelength of 0.42 meters. Find outwhether the interference is constructive or destructive at sites with the following distances betweenthe two sources: (a) 0.84 and 0.42 m [2]; (b) 0.21 and 0.42 m[2]; (c) 1.26 and 0.42 m[2]; (d) 1.87 and1.45 m [2]; (e) 0.63 and 0.84 m [2]; and (f) 1.47 and 1.26 m [2]
Name the type of waves which are used for line of sight (LOS) communication. What is the range of their frequencies? A transmitting antenna at the top of a tower has a height of 45 m and the receiving antenna is on the ground. Calculate the maximum distance between them for satisfactory communication in LOS mode. (Radius of the Earth = 6.4 ∞ 106 m)
A plane wave of monochromatic light is incident normally on a uniform thin film of oil that covers a glass plate. The wavelength of the source can be varied continuously. Fully destructive interference of the reflected light is observed for wavelengths of 500 and 700 nm and for no wavelengths in between. If the index of refraction of the oil is 1.30 and that of the glass is 1.50, find the thickness of the oil film.
Coherent light of frequency f travels in air and is incident on two narrow slits. The interference pattern is observed on a distant screen that is directly opposite the slits. The frequency of light f can be varied. For f = 5.60 x 1012 Hz there is an interference maximum for θ = 60.0°. The next higher frequency for which there is an interference maximum at this angle is 7.47 x 1012 Hz. What is the separation d between the two slits?
A beam of light of unknown wavelength λ is incident on a slit of width a = 0.2mm. The light exiting the slit is incident on a screen that is at a distance of L = 1m away. We notice that on the screen, the central maximum has a width of w = 2.7 mm (where the width is the distance between the first-order minima on each side of the central max). What is the wavelength of the incident light?
A 2000 Hz sound wave passes through a wall with two narrow openings 30 cm apart. If sound travels on average 330 m/s, find the following. (a) What is the angle of the first order maximum? (b) Find the slit separation when you replace the sound wave with a 2.15 cm microwave, and the angle of the first order maximum remains unchanged. (c) If the slit separation is 1.00 um, what frequency of light gives the same first order maximum angle? Hz
Interference occurs with not onlylight waves but also all frequencies of electromagnetic waves and allother types of waves, such as sound and water waves. Suppose thatyour physics professor sets up two sound speakers in the front of yourclassroom and uses an electronic oscillator to produce sound waves ofa single frequency. When she turns the oscillator on (take this to be itsoriginal setting), you and many students hear a loud tone while otherstudents hear nothing. (The speed of sound in air is 340 m/s.) The professor once again returns the apparatus to its original setting, but now she adjusts the oscillator to produce sound waves of half the original frequency. What happens? (a) The students who originally heard a loud tone again hear a loud tone, and the students who originally heard nothing still hear nothing. (b) The students who originally heard a loud tone now hear nothing, and the students who originally heard nothing now hear a loud tone. (c) Some of the students who…
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?

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