Question

The unit of quantity on which the pitch of the sound depends is :

• A. Hertz
• B. metre
• C. metre/second
• D. second

Answer 1

The correct option is A

Hertz

1. Pitch is the sensation of the frequency of an emitted sound.
2. The faster the vibration of the source, the higher the frequency and the higher the pitch similarly lower the frequency lower will be the pitch.
3. So frequency is the quantity on which the pitch of the sound depends and its unit is Hertz.

Hence, option (A) is the correct answer.