The following two lists give the diameters and sound frequencies for three loudspeakers. Pair each diameter with a frequency, so that the diffraction angle is the same for each of the speakers, and then find the common diffraction angle. Take the speed of sound to be 343 m/s. Diameter, D 0.12 m 0.6m 0.24 m Frequency.f 5 kHz 10 kHz 2kHz

The following two lists give the diameters and sound frequencies for three loudspeakers. Pair each diameter with a frequency, so that the diffraction angle is the same for each of the speakers, and then find the common diffraction angle. Take the speed of sound to be 343 m/s. Diameter, D 0.12 m 0.6m 0.24 m Frequency.f 5 kHz 10 kHz 2kHz

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter35: Diffraction And Interference

Section: Chapter Questions

Problem 26PQ

See similar textbooks

Similar questions

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.
Two loudspeakers, placed with respect to an observation point P as shown in the diagram below, emit identical pure tones of f = 343 Hz. The speed of sound in air is 343 m/s. The minimum speaker separation s for experiencing complete destructive interference at P is s = m.
The following two lists give the diameters and sound frequencies for three loudspeakers. Pair each diameter with a frequency, so that the diffraction angle is the same for each of the speakers, and then find the common diffraction angle. Take the speed of sound to be 343 m/s. Diameter, D Frequency, f 0.07 m 5 kHz 0.35 m 10 kHz 0.14 m 2 kHz θ = Number
Two identical audio speakers connected to the same amplifier produce in-phase sound waves with a single frequency that can be varied between 340 and 575 HzHz . The speed of sound is 340 m/sm/s . You find that where you are standing, you hear minimum-intensity sound If one of the speakers is moved 39.8 cmcm toward you, the sound you hear has maximum intensity. What is the frequency of the sound? Express your answer in hertz. How much closer to you from the position in part B must the speaker be moved to the next position where you hear maximum intensity? Express your answer in meters.
Two loudspeakers are placed above and below each other, as in the figure, and driven by the same spice at a frequency of 5.60* 10^2 Hz. An observer is in front of the speakers at point O, at the same distance from each speaker. What max vertical distance upward should the top speaker be moved to create destructive interference at point O? ( assume spread of sound is 343m/s)
A naval engineer is testing an nonreflective coating for submarines that would help them avoid detection by producing destructive interference for sonar waves that have a frequency of 512 Hz and travel at 1280 m/s. If there is a phase change for waves reflected from both the top and bottom surfaces of the coating, what is the minimum thickness of the coating? For sonar waves let nwater=1.00 and ncoating=13.5.
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?
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?
The 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?
Two in-phase loudspeakers, A and B, are separated by 3.20 m. A listener is stationed at C, which is 2.40 m in front of speaker B. Both speakers are playing identical 214-Hz tones, and the speed of sound is 343 m/s. Does the listener hear a loud sound, or no sound? Someone move the speakers closer. If the Distance AB changes to be 3.00 meters and the Distance BC reminds the same (2.40 meters), what will be the minimum frequency that will produce Constructive Interference? Justify your answer with the calculationsIn the same situation as b) what will be the minimum frequency that will produce Destructive interference. Justify your answer with the calculations The subject moves to a position where Distance AC is equal to Distance BC. Draw the new situation Which frequencies will produce Constructive Interference in this situations – justify your answer. Which frequencies will produce Destructive interference in this situation
Two microwave signals of nearly equal wavelengths can generate a beat frequency if both are directed onto the same microwave detector. In an experiment, the beat frequency is 110 MHz. One microwave generator is set to emit microwaves with a wavelength of 1.500 cm. If the second generator emits the longer wavelength, what is that wavelength? Express your answer to four significant figures and include the appropriate units.
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?