Question

Write the list of pleasant and unpleasant sound.

Answer 1

Pleasant sound:

1. A pleasant sound is a sound that makes us feel happy.
2. It has a constant pitch.
3. In a pleasant sound, there is a regular periodic motion of sound waves.
4. They produce meaningful communication.

For example Sound from musical instruments, the Chirping of birds, etc.

Unpleasant sound:

1. An unpleasant sound is a sound that has an unpleasing effect on the ears and irritate us which can cause headache.
2. It has a constantly varying pitch.
3. In an unpleasant sound, there is no regular periodic motion of sound waves.
4. They produce no meaningful communication.

For example Honking of vehicles, Jackhammer sounds, Electrical generator sounds.etc.