A wire of length L is made up of two sections of two different materials connected in series. The first section of length 4₁ 17.4 m is made of steel and the second section of length L₂ = 28.5 m is made of copper. Both wires have the same radius of 5.50 x 104 m. If the compound wire is subjected to a tension of 145 N, determine the time taken for a transverse pulse to move from one end of the wire to the other. The density of steel is 7.75 x 10³ kg/m³ and the density of copper is 8.92 x 10³ kg/m³. S
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
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