College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Question
Chapter 11, Problem 74GP
To determine
Whether a plane wave travelling in one medium, hits a border of another medium at different speed with some angle to the direction of the propagation of the wave, will change its direction of propagation according to Huygens principle.
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Check out a sample textbook solutionChapter 11 Solutions
College Physics
Ch. 11 - How do you produce a longitudinal wave on a...Ch. 11 - Compare and contrast the speed of a vibrating...Ch. 11 - Prob. 3RQCh. 11 - Prob. 4RQCh. 11 - Why is it impossible to create a traveling wave on...Ch. 11 - Your friend says that it is impossible for two...Ch. 11 - Is the following sentence true? When two...Ch. 11 - One end of a horizontal string of length L passes...Ch. 11 - When we studied traveling waves, we decided that...Ch. 11 - An ambulance siren blares continuously as the...
Ch. 11 - What does it mean if the speed of a wave is 300 m...Ch. 11 - 2. What does it mean if the wavelength of a wave...Ch. 11 - 3. If you wish to represent one period of a wave...Ch. 11 - 4. If you wish to graph the disturbance pattern of...Ch. 11 - Which mathematical expression represents a...Ch. 11 - Prob. 6MCQCh. 11 - Prob. 7MCQCh. 11 - 8. Figure Q11.8 shows the...Ch. 11 - Prob. 9MCQCh. 11 - Prob. 10CQCh. 11 - 11. Figure Q11.11 shows a snapshot of two pulses...Ch. 11 - 12. Can a wave have a period of 2.0 s, a speed of...Ch. 11 - 13. What physics ideas were necessary to construct...Ch. 11 - 14. How do you know that the wavelength of a wave...Ch. 11 - What conditions are necessary to create a...Ch. 11 - Invent and describe an experiment to estimate the...Ch. 11 - Prob. 17CQCh. 11 - 18. Describe two useful types of information a...Ch. 11 - 19. Two speakers hang from racks placed in an open...Ch. 11 - Two identical sound waves are sent down a long...Ch. 11 - Sound waves of all frequencies in the audio...Ch. 11 - How can you show that an object producing sound...Ch. 11 - Describe the common features and differences...Ch. 11 - 24. Why do different guitar strings sound...Ch. 11 - Assume that the speed of sound in air is 340 m/s...Ch. 11 - Assume that the speed of sound in air is 340 m/s...Ch. 11 - Assume that the speed of sound in air is 340 m/s...Ch. 11 - Assume that the speed of sound in air is 340 m/s...Ch. 11 - Assume that the speed of sound in air is 340 m/s...Ch. 11 - Prob. 6PCh. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - Prob. 9PCh. 11 - Assume that the speed of sound in air is 340 m/s...Ch. 11 - Assume that the speed of sound in air is 340 m/s...Ch. 11 - Assume that the speed of sound in air is 340 m/s...Ch. 11 - Prob. 14PCh. 11 - Telephone line A telephone lineman is told to...Ch. 11 - 16. * A pulse travels at speed v on a stretched...Ch. 11 - 17. A 0.62-kg Slinky has 185 coils. When you and...Ch. 11 - =100g/m and the middle section is made from rope...Ch. 11 - Show using a sketch and mathematics that the...Ch. 11 - Show using a sketch and mathematics that the...Ch. 11 - 22. * You are standing at position A and your...Ch. 11 - Prob. 23PCh. 11 - Prob. 24PCh. 11 - Prob. 26PCh. 11 - 27. Sound wave in Earth A sound wave created by an...Ch. 11 - A 5.0-kg rope that is 20 m long is woven to an...Ch. 11 - Prob. 29PCh. 11 - Repeat the previous problem for the case where the...Ch. 11 - Prob. 31PCh. 11 - 32. Two waves shown in Figure P11.32 at zero...Ch. 11 - Prob. 33PCh. 11 - 34. * Use Huygens' principle and a wave front...Ch. 11 - Prob. 35PCh. 11 - 36. * You have two synchronously vibrating objects...Ch. 11 - Design Describe an experiment to convince a friend...Ch. 11 - 38. The energy of a sound wave is proportional to...Ch. 11 - Prob. 39PCh. 11 - * Supersonic jet The sound intensity 5 km from the...Ch. 11 - * You are in an open field investigating how sound...Ch. 11 - One loudspeaker is producing a tone of frequency...Ch. 11 - 43. * Tovi is playing a flute and Dawn is playing...Ch. 11 - Music in music a very soft sound called...Ch. 11 - 45. Two sounds differ by 1 dB. What is the...Ch. 11 - 46. Calculate the change in intensity level when a...Ch. 11 - Prob. 47PCh. 11 - 48. Banjo fret How far from the end of the banjo...Ch. 11 - * Violin string A 0.33-m-long violin string has a...Ch. 11 - A person secures a 5.0-m-long rope of mass 0.40 kg...Ch. 11 - 51. * Laura and Elana are discussing how to solve...Ch. 11 - Prob. 52PCh. 11 - * Ratio reasoning By what percent does the...Ch. 11 - Prob. 54PCh. 11 - 55. * Brooklyn-Battery Tunnel The 2779-m...Ch. 11 - * Flute A wooden flute, open at both ends, is 0.48...Ch. 11 - Organ pipe The lowest three standing wave...Ch. 11 - The speed of sound can be measured using the...Ch. 11 - Prob. 59PCh. 11 - 60. * A rope of length L is attached to a...Ch. 11 - 61. * A 3.0-m-long rope with a mass of 100 g is...Ch. 11 - * A 1.2-m-long open-closed pipe is producing sound...Ch. 11 - * Figure P11.63 shows the spectrum of sound that...Ch. 11 - Prob. 64PCh. 11 - * See the spectrum in Figure P11.63. (a) Can this...Ch. 11 - Car horn A car horn vibrates at a frequency of 250...Ch. 11 - Train whistle A car drives at a speed of 25 m/s...Ch. 11 - 68. * BIO Speed of blood A source of ultrasound...Ch. 11 - 69. * Circular motion sound source A whistle with...Ch. 11 - BIO Bat echo A bat emits short pulses of sound at...Ch. 11 - 105 Hz emits sound waves and detects the same...Ch. 11 - * Violin strings The speed of a wave on a violin A...Ch. 11 - 73. * Use Huygens' principle and a wave front...Ch. 11 - Prob. 74GPCh. 11 - Prob. 75GPCh. 11 - s teammate shouts at her to catch a ball. Estimate...Ch. 11 - 77. ** EST While camping, you record a thunderclap...Ch. 11 - 78. ** BIO Blood speed A red blood cell travels at...Ch. 11 - Prob. 80RPPCh. 11 - 81. If the car from Problem 11.80 is moving at 20...Ch. 11 - 82. Which answer below is closest to the distance...Ch. 11 - Compare your answers to Problems 11.80 and 11.82....Ch. 11 - While your car from Problem 11.80 is stationary,...Ch. 11 - Prob. 85RPPCh. 11 - Prob. 86RPPCh. 11 - 87. What amplifies the air pressure in the ear?
a....Ch. 11 - Where is the mechanism that allows the ear to...Ch. 11 - Prob. 89RPPCh. 11 - The threshold for pressure variation of a barely...
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- You are working for a plumber who is laying very long sections of copper pipe for a large building project. He spends a lot of time measuring the lengths of the sections with a measuring tape. You suggest a faster way to measure the length. You know that the speed of a one-dimensional compressional wave traveling along a copper pipe is 3.56 km/s. You suggest that a worker give a sharp hammer blow at one end of the pipe. Using an oscilloscope app on your smartphone, you will measure the time interval t between the arrival of the two sound waves due to the blow: one through the 20.0C air and the other through the pipe. (a) To measure the length, you must derive an equation that relates the length L of the pipe numerically to the time interval t. (b) You measure a time interval of t = 127 ms between the arrivals of the pulses and, from this value, determine the length of the pipe. (c) Your smartphone app claims an accuracy of 1.0% in measuring time intervals. So you calculate by how many centimeters your calculation of the length might be in error.arrow_forwardA sound wave propagates in air at 27C with frequency 4.00 kHz. It passes through a region where the temperature gradually changes and then moves through air at 0C. Give numerical answers to the following questions to the extent possible and state your reasoning about what happens to the wave physically. (a) What happens to the speed of the wave? (b) What happens to its frequency? (c) What happens to its wavelength?arrow_forwardYou are working at an open-air amphitheater, where rock concerts occur regularly. The venue has powerful loudspeakers mounted on 10.6-m-tall columns at various locations surrounding the audience. The loudspeakers emit sound uniformly in all directions. There are ladder steps sticking out from the columns, to help workers service the loudspeakers. Many times, audience members break through the protective fencing around the columns and climb upward on the columns to get a better view of the performers. The upcoming concert is by a group that states that several very-high-volume pulses of sound occur in their concerts, and these sounds are part of their artistic expression. The amphitheater owners are worried about people climbing the columns and being too close to the loudspeakers when these peak sounds are emitted. They do not want to be held responsible for injuries to audience members ears. Based on past performances of the group, you determine that the peak sound level is 150 dB measured 20.0 cm from the speakers on the columns. The owners ask you to determine the heights on the columns at which to mount impassable barricades to keep people from getting too close to the speakers and hearing sound above the threshold of pain.arrow_forward
- Later in this book, you will learn that sound is a wave. The wavelength and frequency f of a wave are related by f = v where v is the speed of the wave. Musicians refer to these different wavelengths or frequencies by their notes (AG). Use the information in the following table to plot the frequency on the vertical axis and 1/ on the horizontal axis. Give a conceptual Interpretation and numerical value of the slope on your graph.arrow_forwardIn Problem 61, a. Sketch an image of the wave fronts being emitted by the speaker as the speaker approaches you. In what way does the sketch illustrate the change in the wavelength you observe as the speaker is moving toward your location? b. Sketch an image of the wave fronts being emitted by the speaker as it recedes away from you. In what way does the sketch illustrate the change in the wavelength you observe as the speaker is moving away from your location?arrow_forwardHow many times a minute does a boat bob up and down an ocean waves that have a wavelength of 40.0 m and a propagation speed of 5.00m/s ?arrow_forward
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