What is meant by frequency? Does the loudness of sound increase with frequency?
( Thiruveni Nainar asked this question)
As you know, sound is produced by the vibrations of the sounding body. Frequency of the sound produced by the vibrations of a body is same as the frequency with which the body vibrates, i.e; the no. of vibrations completed by the body in one second.
Frequency of sound is defined as the number of vibrations completed by the sounding body per second or the number of waves crossing any point in the medium per second.
Loudness is not directly related to frequency; loudness of sound depends on the amplitude (The maximum displacement of the particles of the medium or that of the sounding body from mean position) of vibration