Sound travels fastest through Steel. Steel has a higher density and elasticity compared to other substances listed, allowing sound waves to propagate faster. This property makes steel an excellent conductor of sound in industrial and structural applications.
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If the pressure is doubled, the speed of sound in air remains 332 m/sec. The speed of sound in a medium like air primarily depends on temperature, not pressure. Therefore, changes in pressure do not significantly affect the speed of ...
Bats can fly in the dark because they produce very intense sound waves which control it. Bats use echolocation, emitting high-frequency sound waves and interpreting the echoes to navigate and locate prey in darkness. This biological adaptation allows them to ...
Explosions are not heard on the Moon away from the surface Due to the absence of atmosphere. Sound requires a medium like air to propagate, and the Moon’s vacuum-like environment lacks air molecules necessary to transmit sound waves. Therefore, no ...
Humans feel sound vibrations in the frequency range of 20-20,000 Hz. This range encompasses the audible spectrum where human ears are sensitive to vibrations in the air, allowing us to perceive sound from low-pitched tones to high-pitched sounds like bird ...
The method used in cleaning the internal parts of planes is Ultrasonic wave. Ultrasonic cleaning involves using high-frequency sound waves to agitate a liquid cleaning solution. This process efficiently removes contaminants from intricate parts of aircraft engines and components without ...
The pitch of sound depends on Frequency. Pitch refers to the perceived highness or lowness of a sound, which correlates directly with its frequency. Higher frequencies create higher pitches, while lower frequencies produce lower pitches.
The method used to ward off insects and harmful elements from homes is Ultrasonic wave. Ultrasonic devices emit high-frequency waves that are uncomfortable for pests like insects and rodents, encouraging them to leave the area. This technology is popular for ...
The phenomenon used to detect prey, predators, or obstacles is as Formation of pulses. Animals like bats use echolocation, emitting ultrasonic pulses and detecting their echoes to locate objects. This method allows for precise navigation and hunting in environments where ...
The first person to produce ultrasonic waves by whistling was Galton. Sir Francis Galton, a polymath and cousin of Charles Darwin, discovered ultrasonic waves in 1883 through his experiments with high-pitched whistles. His work laid the foundation for understanding and ...