18. Waves & Sound
Velocity of Longitudinal Waves
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Practice this topic
- Multiple Choice
A sound wave is emitted at a frequency of 300 Hz in air at a 0°C. As the sound wave travels through the air, the temperature increases. What is the wavelength of the sound wave at the following temperatures?
a. 0°C
b. 20°C
c. 45°C1172views1rank1comments - Multiple ChoiceThe speed of sound in a certain monatomic gas is at room temperature (). What gas is this?424views
- Multiple ChoiceWhich of the following expressions describes a wave with an amplitude of 10 cm, a wavelength of 31 cm, and a frequency of 22 Hz?304views
- Multiple ChoiceWhat are the longest and shortest wavelengths of sound that can be heard by a bat in air where the speed of sound is ?446views
- Textbook QuestionWhat must be the stress (F/A) in a stretched wire of a material whose Young's modulus is Y for the speed of longitudinal waves to equal 30 times the speed of transverse waves?532views
- Textbook QuestionAn oscillator vibrating at 1250 Hz produces a sound wave that travels through an ideal gas at 325 m>s when the gas temperature is 22.0°C. For a certain experiment, you need to have the same oscillator produce sound of wavelength 28.5 cm in this gas. What should the gas temperature be to achieve this wavelength?588views
- Textbook QuestionOne cue your hearing system uses to localize a sound (i.e., to tell where a sound is coming from) is the slight difference in the arrival times of the sound at your ears. Your ears are spaced approximately 20 cm apart. Consider a sound source 5.0 m from the center of your head along a line 45° to your right. What is the difference in arrival times? Give your answer in microseconds. Hint: You are looking for the difference between two numbers that are nearly the same. What does this near equality imply about the necessary precision during intermediate stages of the calculation?476views
- Textbook Question
(I) Calculate the speed of longitudinal waves in
(b) granite, using Tables in Chapters 12 and 13.
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