1. How do we hear sound?
Q: You are most sensitive to A sounds of very low frequency. B sounds of very high frequency.…
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Q: Select the correct order for the different forms of electromagnetic waves in terms of increasing…
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Q: 43. Sound waves do NOT carry energy a. True b. False
A: Sound waves actually carry energy. They use the particles of a particular medium thorough which…
Q: A human cannot hear sound at a frequency of 100 kHz or sound at 102 kHz. But if you walk into a room…
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Q: How can we hear our own voice even after closing our ears?
A: There are two different ways people can heat their own sound. In first case, sound exits the mouth…
Q: 4. Given a wavelength of 54 nm, it takes 62 s to complete one cycle. What is the velocity of the…
A: Introduction: The period of the wave is equal to the time taken by the wave to complete the owner…
Q: The average person can hear sound waves ranging in frequency from 20 Hz to 20 kHz. Determine the…
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Q: How does cupping of both hands to your mouth when shouting be a help to be heard at greater…
A: Required : How does cupping of both hands increase the range of sound.
Q: The frequency of ultrasonic waves is lower than that of normal sound waves. a. False O b. True
A: The frequency of normal waves is the frequency that human hear. The humans with normal hearing can…
Q: 1-What do you expect to be the speed of sound at 50 °C ?
A: The equation for the speed of sound is
Q: A set of waves has a speed of 4.2 m/s and a frequency of 2.0 Hz. The wavelength is 3.2 m. O 2.1 m.…
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Q: The intensity of a sound wave is a measure of: 1.energy/area 2.force/time 3.momentum change/time…
A: The amount of energy flowing per unit time through a unit area that is perpendicular to the…
Q: Can sound be propagated in a vacuum? Explain
A: Short answer : NO
Q: The sound wave with a frequency above 20,000 Hz is called O a. Audible O b. Infrasonic O. X ray O d.…
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Q: DEPTH OF SEAFLOOR. Sound was sent from a surface of an ocean by a ship. After 5.33 s, the reflected…
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Q: Sound can be heard for great distance at night or after a rainfall. Why?
A: At night or after a rainfall, the medium becomes more humid, and there are several water droplets…
Q: Infrasonic wave is a sound wave with frequency
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Q: 5. A sound wave is produced in air, with a frequency of 200 Hz. (The speed of sound in air is around…
A: 5 Given- frequency f= 200 Hz Speed of sound v= 340 m/s
Q: 4. Sound waves propagate 200 m with a period of 2 s, then the speed of propagation is .. . m/ s.
A: Speed = wavelength × wave frequency Frequency = 1/ time period
Q: In which medium sound cannot travels? O a Liquid O b. Vacuum O.c. Solid O.d. Gas
A: Sound travels as a pressure wave and needs atoms to transmit itself. Thus, any medium that contains…
Q: If a sound wave causes an object to resonate, then the sound wave and the natural vibration of the…
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Q: Compared with the speed of a sound wave, a radio wave travels A. Most often, faster. B. Faster…
A: Step1 - Understanding the sound wave and radio wave in terms of their speed. As we know…
Q: 2. Say we have a ball dropped into well with a velocity of 3.28 ft/s. After 10sec, a sound of splash…
A: Given: The intial speed of the ball is 3.28 ft/s. The total time interval is 10 s. The speed of the…
Q: When acoustic resonance takes place, a loud sound is heard. Why does this happen? Explain
A: When acoustic resonance takes place, the natural frequency of vibration of body is equal to the…
Q: 1. Is the Doppler shift real or just a sensory illusion? Explain your answer.
A: The effect in which observed frequency of the source is different from the actual frequency of…
Q: 6. You're trying to tune a piano. You sound a 440.0 Hz tone and you hear a 5.0 Hz beat frequency…
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Q: What will most likely happen to a ringing bell if placed inside a bell jar connected to a vacuum…
A: B. Intensity of sound wave will decrease reason--> number of particles decreases as pump sucks…
Q: Is the speed of sound independent of frequency? Explain.
A: Yes speed of sound is independent of frequency. It depends on medium in which it travel.
Q: Some animals like dogs can hear the sound which has O a. frequency, less than 20 Hz O b. frequency,…
A: Dogs have the ability to hear sounds with frequencies ranging from around 10 Hz to 10,000 Hz. This…
Q: What is the minimum frequency of sound, which can be heard by human? O a. 2 KHz O b. 200 KHz 20 Hz O…
A: According the question we need to discuss about sound frequency heard by humans.
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