Question

Name the characteristics of sounds which enables a person to differentiate between two sounds with equal loudness but having different frequency.

Answer 1

Name the all possible characteristics of the sound wave. We then find out which characteristic has direct dependence on the frequency of the sound wave. This characteristic is our desired answer.

Complete step by step answer:
There are generally two characteristics of sound: loudness and pitch.
Loudness of the sound depends on the amplitude of the sound wave. The high amplitude means sound is louder. Since we have given that the two sounds have the same loudness, it is not the characteristic of the sound we want.
Another characteristic of the sound is pitch. The pitch directly depends on the frequency of the sound wave. The higher frequency of the sound implies high pitch and smaller frequency of the sound wave implies low pitch.
Therefore, the characteristic of sounds which enables a person to differentiate between two sounds with equal loudness but having different frequency is pitch.
The real-life example of high pitch is the chirp of the bird which has high pitch due to high frequency. That is why chirping birds makes most of the noise than the soft sound with greater loudness.

Additional Information:
Wavelength: The wavelength of the sound wave is the distance between the adjacent crest of the wave.
Period: The period of the wave is the time taken by the wave to complete one revolution or oscillation.

Note:
The frequency of waves is the number of sound waves passing in 1 second.
The amplitude of the wave is the maximum vertical vibrations of the sound through origin.