A stone is dropped from rest into a well. The sound of the splash is heard exactly 1.10 s later. Find the depth of the well if the air temperature is 11.0°C. m
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.
A stone is dropped from rest into a well. The sound of the splash is heard exactly 1.10 s later. Find the depth of the well if the air temperature is 11.0°C.
m
The formula for speed of sound in air is given by
The depth of the well is given by
Here, is the time for the stone to fall in to the well.
The time for the sound to travel back up the well is given by
Here, is the time taken for the sound to travel back up the well.
The time taken for the sound to travel up the well is difference between
Use in the above equation.
Substitute for , and for in the above equation for .
Solve the above quadratic equation.
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