The pioneer who first produced ultrasonic waves by whistling was; option [B] Galton. Sir Francis Galton, an English scientist and polymath, conducted experiments in 1883 where he used high-pitched whistles to generate and study ultrasonic frequencies. Galton's research significantly contributed to tRead more
The pioneer who first produced ultrasonic waves by whistling was; option [B] Galton. Sir Francis Galton, an English scientist and polymath, conducted experiments in 1883 where he used high-pitched whistles to generate and study ultrasonic frequencies. Galton’s research significantly contributed to the early understanding of ultrasonic waves and their applications, laying the groundwork for future developments in ultrasonic technology.
Galton’s experiments demonstrated that sound waves could exist beyond the range of human hearing, with frequencies exceeding 20,000 Hz. His work not only introduced the concept of ultrasonics to scientific inquiry but also opened avenues for exploring practical applications in fields such as medicine, industrial testing, and animal communication. Galton’s contributions to the field of acoustics and ultrasonics remain pivotal, showcasing his innovative approach and pioneering spirit in scientific exploration.
Ultrasonic waves; option [B] cannot be heard by humans. These waves have frequencies above 20,000 Hz, which is beyond the upper limit of human auditory perception. While some animals, such as bats and certain rodents, can detect and utilize ultrasonic waves for echolocation and communication, humansRead more
Ultrasonic waves; option [B] cannot be heard by humans. These waves have frequencies above 20,000 Hz, which is beyond the upper limit of human auditory perception. While some animals, such as bats and certain rodents, can detect and utilize ultrasonic waves for echolocation and communication, humans require specialized equipment like ultrasound machines to generate and detect these waves.
The inability of humans to hear ultrasonic waves is due to physiological limitations in the human auditory system, which is sensitive to frequencies typically ranging from 20 Hz to 20,000 Hz. Beyond this range, the cochlea in the inner ear cannot detect vibrations as sound. Instead, ultrasonic waves are utilized in various technological applications such as medical imaging, industrial processes, and underwater navigation where their unique properties are advantageous. Thus, the correct answer remains [B] cannot be heard.
Ultrasonic waves are sound waves with frequencies higher than 20,000 Hz, which exceeds the upper range of human hearing. These waves are utilized in diverse fields due to their ability to penetrate materials, produce detailed images in medical diagnostics (ultrasound), and clean delicate objects thrRead more
Ultrasonic waves are sound waves with frequencies higher than 20,000 Hz, which exceeds the upper range of human hearing. These waves are utilized in diverse fields due to their ability to penetrate materials, produce detailed images in medical diagnostics (ultrasound), and clean delicate objects through cavitation in industrial processes. They are also crucial in applications like sonar for underwater navigation and detecting objects. The high frequency of ultrasonic waves allows for precise control and manipulation in technological applications, enhancing their utility in various industries.
The correct answer to the frequency of ultrasonic waves is; option [C] more than 20 Kilo Hertz. This distinction is essential as it marks the threshold where sound waves transition from audible to ultrasonic, offering distinct advantages in fields requiring high-resolution imaging, non-destructive testing, and efficient cleaning processes.
Infrasound waves are characterized by frequencies that are less than 20 Hz, which is below the lower limit of human hearing. Humans can typically hear sounds in the range of 20 Hz to 20,000 Hz, and sounds with frequencies higher than this range are termed ultrasound. Infrasound can be produced by vaRead more
Infrasound waves are characterized by frequencies that are less than 20 Hz, which is below the lower limit of human hearing. Humans can typically hear sounds in the range of 20 Hz to 20,000 Hz, and sounds with frequencies higher than this range are termed ultrasound. Infrasound can be produced by various natural phenomena such as earthquakes, volcanic eruptions, and ocean waves, as well as by artificial sources including explosions, heavy machinery, and certain types of industrial equipment. These low-frequency sounds can travel long distances and penetrate through different mediums, making them useful in applications like monitoring geophysical events and studying animal communication. Because of their low frequency, infrasound waves are less attenuated by the medium they travel through, allowing them to be detected over large distances. Therefore, the correct answer regarding the frequency of infrasound waves is; option [A] Less than 20 Hz.
The correct statement regarding sound waves is ; option [C] At 0 °C their speed is 332 meters per second. Sound waves are longitudinal waves, characterized by compressions and rarefactions in the medium through which they travel. Due to their nature, they cannot be polarized; polarization is a propeRead more
The correct statement regarding sound waves is ; option [C] At 0 °C their speed is 332 meters per second. Sound waves are longitudinal waves, characterized by compressions and rarefactions in the medium through which they travel. Due to their nature, they cannot be polarized; polarization is a property of transverse waves, where the oscillations occur perpendicular to the direction of wave propagation. Additionally, sound waves require a medium (such as air, water, or solids) to travel and cannot propagate in a vacuum because there are no particles to transmit the wave energy. Therefore, the statement about their speed at 0 °C being 332 meters per second is accurate, reflecting the physical properties of sound wave propagation in air at that specific temperature. This speed can vary with changes in temperature, pressure, and medium properties. Hence, the correct answer is [C].
Who first produced ultrasonic waves by whistling?
The pioneer who first produced ultrasonic waves by whistling was; option [B] Galton. Sir Francis Galton, an English scientist and polymath, conducted experiments in 1883 where he used high-pitched whistles to generate and study ultrasonic frequencies. Galton's research significantly contributed to tRead more
The pioneer who first produced ultrasonic waves by whistling was; option [B] Galton. Sir Francis Galton, an English scientist and polymath, conducted experiments in 1883 where he used high-pitched whistles to generate and study ultrasonic frequencies. Galton’s research significantly contributed to the early understanding of ultrasonic waves and their applications, laying the groundwork for future developments in ultrasonic technology.
Galton’s experiments demonstrated that sound waves could exist beyond the range of human hearing, with frequencies exceeding 20,000 Hz. His work not only introduced the concept of ultrasonics to scientific inquiry but also opened avenues for exploring practical applications in fields such as medicine, industrial testing, and animal communication. Galton’s contributions to the field of acoustics and ultrasonics remain pivotal, showcasing his innovative approach and pioneering spirit in scientific exploration.
See lessUltrasonic waves can
Ultrasonic waves; option [B] cannot be heard by humans. These waves have frequencies above 20,000 Hz, which is beyond the upper limit of human auditory perception. While some animals, such as bats and certain rodents, can detect and utilize ultrasonic waves for echolocation and communication, humansRead more
Ultrasonic waves; option [B] cannot be heard by humans. These waves have frequencies above 20,000 Hz, which is beyond the upper limit of human auditory perception. While some animals, such as bats and certain rodents, can detect and utilize ultrasonic waves for echolocation and communication, humans require specialized equipment like ultrasound machines to generate and detect these waves.
The inability of humans to hear ultrasonic waves is due to physiological limitations in the human auditory system, which is sensitive to frequencies typically ranging from 20 Hz to 20,000 Hz. Beyond this range, the cochlea in the inner ear cannot detect vibrations as sound. Instead, ultrasonic waves are utilized in various technological applications such as medical imaging, industrial processes, and underwater navigation where their unique properties are advantageous. Thus, the correct answer remains [B] cannot be heard.
See lessUltrasonic waves are those sound waves whose frequency is
Ultrasonic waves are sound waves with frequencies higher than 20,000 Hz, which exceeds the upper range of human hearing. These waves are utilized in diverse fields due to their ability to penetrate materials, produce detailed images in medical diagnostics (ultrasound), and clean delicate objects thrRead more
Ultrasonic waves are sound waves with frequencies higher than 20,000 Hz, which exceeds the upper range of human hearing. These waves are utilized in diverse fields due to their ability to penetrate materials, produce detailed images in medical diagnostics (ultrasound), and clean delicate objects through cavitation in industrial processes. They are also crucial in applications like sonar for underwater navigation and detecting objects. The high frequency of ultrasonic waves allows for precise control and manipulation in technological applications, enhancing their utility in various industries.
The correct answer to the frequency of ultrasonic waves is; option [C] more than 20 Kilo Hertz. This distinction is essential as it marks the threshold where sound waves transition from audible to ultrasonic, offering distinct advantages in fields requiring high-resolution imaging, non-destructive testing, and efficient cleaning processes.
See lessThe frequency of infrasound waves is
Infrasound waves are characterized by frequencies that are less than 20 Hz, which is below the lower limit of human hearing. Humans can typically hear sounds in the range of 20 Hz to 20,000 Hz, and sounds with frequencies higher than this range are termed ultrasound. Infrasound can be produced by vaRead more
Infrasound waves are characterized by frequencies that are less than 20 Hz, which is below the lower limit of human hearing. Humans can typically hear sounds in the range of 20 Hz to 20,000 Hz, and sounds with frequencies higher than this range are termed ultrasound. Infrasound can be produced by various natural phenomena such as earthquakes, volcanic eruptions, and ocean waves, as well as by artificial sources including explosions, heavy machinery, and certain types of industrial equipment. These low-frequency sounds can travel long distances and penetrate through different mediums, making them useful in applications like monitoring geophysical events and studying animal communication. Because of their low frequency, infrasound waves are less attenuated by the medium they travel through, allowing them to be detected over large distances. Therefore, the correct answer regarding the frequency of infrasound waves is; option [A] Less than 20 Hz.
See lessWhich of the following statements is true for sound waves?
The correct statement regarding sound waves is ; option [C] At 0 °C their speed is 332 meters per second. Sound waves are longitudinal waves, characterized by compressions and rarefactions in the medium through which they travel. Due to their nature, they cannot be polarized; polarization is a propeRead more
The correct statement regarding sound waves is ; option [C] At 0 °C their speed is 332 meters per second. Sound waves are longitudinal waves, characterized by compressions and rarefactions in the medium through which they travel. Due to their nature, they cannot be polarized; polarization is a property of transverse waves, where the oscillations occur perpendicular to the direction of wave propagation. Additionally, sound waves require a medium (such as air, water, or solids) to travel and cannot propagate in a vacuum because there are no particles to transmit the wave energy. Therefore, the statement about their speed at 0 °C being 332 meters per second is accurate, reflecting the physical properties of sound wave propagation in air at that specific temperature. This speed can vary with changes in temperature, pressure, and medium properties. Hence, the correct answer is [C].
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