Given: The speed of sound in air is 343 m/s. An open vertical tube has water in it. A tuning fork vibrates over its mouth. As the water level is lowered in the tube, a resonance is heard when the water level is 362.5 cm below the top of the tube. And again, after the water level is 387.5 cm below the top of
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.
Given: The speed of sound in air is 343 m/s.
An open vertical tube has water in it. A
tuning fork vibrates over its mouth. As the
water level is lowered in the tube, a resonance
is heard when the water level is 362.5 cm
below the top of the tube. And again, after
the water level is 387.5 cm below the top of
the tube a resonance is heard.
What is the frequency of the tuning fork?
Answer in units of Hz.
b-How many nodes are in the tube after the
water has reached the second distance from
the top of the tube?
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