Question

What are the applications of sound ?

Answer 1

Hint: Sound is defined in physics as a vibration that travels as an acoustic wave through a transmission medium such as a gas, liquid, or solid. Sound is the reception of such waves and their perception by the brain in human physiology and psychology.

Complete answer:
Only acoustic waves with frequencies ranging from about 20 Hz to 20 kHz, known as the audio frequency range, elicit an auditory percept in humans. These are sound waves with wavelengths ranging from 17 meters (56 feet) to 1.7 centimeters in the air at atmospheric pressure (0.67 in). Ultrasound is defined as sound waves above 20 kHz that are inaudible to humans. Infrasound refers to sound waves with frequencies less than 20 hertz.

Sound can travel as longitudinal waves through a medium such as air, water, or solids, as well as as a transverse wave in solids. A sound source, such as the vibrating diaphragm of a stereo speaker, generates the sound waves. Vibrations in the surrounding medium are caused by the sound source. The vibrations propagate away from the source as the source continues to vibrate the medium.

Applications of sounds:
-Sonar is used for navigation, weather forecasting, and tracking aircraft, ships, submarines, and missiles.
-Sound has numerous applications in entertainment electronics, such as radios and cassette players.
-The use of sound in communication is extremely beneficial.

Note: The speed of sound is determined by the medium through which the waves pass and is a fundamental property of the material. Isaac Newton made the first significant effort to measure the speed of sound. He believed that the speed of sound in a given substance was equal to the square root of the pressure acting on it divided by the density of that substance.