A student has thrown a stone in Duck pond in front of our campus and a wave is propagating along the peaceful water surface. Another student is on a boat some distance away, where the height of the water after 15sec is 10cm. If the height of a crest of that wave is 20cm, and the time between two successive risings of a piece of grass on its way is 2sec, a) through what phase change that wave has been by the time it reached the second student? b) If the second student is 10m away and the wave reaches her in 20sec, what is the wavelength of the wave?
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 student has thrown a stone in Duck pond in front of our campus and a wave is propagating along the peaceful water surface. Another student is on a boat some distance away, where the height of the water after 15sec is 10cm. If the height of a crest of that wave is 20cm, and the time between two successive risings of a piece of grass on its way is 2sec, a) through what phase change that wave has been by the time it reached the second student? b) If the second student is 10m away and the wave reaches her in 20sec, what is the wavelength of the wave?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
