The diagram below shows a wave does 1 complete cycle in 20 seconds. What is the frequency of this wave? height (cm) 15 hy 0 5 10 15 20 25 -15 time (sec) O-15 cm O 1/20th Hz O 20 Hz O 15 cm
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.
![asses
The diagram below shows a wave does 1 complete cycle in 20 seconds. What is
the frequency of this wave?
height
(cm)
15
AX
10
15
20
-15
time (sec)
-15 cm
1/20th Hz
20 Hz
15 cm
H
DELL
F7
#
3
F3
$
4
F4
발
F5
do 5
%
5
F6
A
6
&
7
8
F8
*
8
F9
prt sc
F10
98
home
F11
9](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbb281c4c-1433-457d-b874-ad635f6dda6d%2F161bc4d5-eb86-4e10-8df4-84e91c0f0076%2Fwxa0ba9_processed.jpeg&w=3840&q=75)
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