Question

Two sounds A and B have the frequencies f and 2f, respectively. Which of the following can be a valid conclusion?

• A. Sound A is deep while sound B is shrill.
• B. Sound A is louder than sound B.
• C. Sound A is shrill while sound B is deep.

Answer 1

The correct option is A Sound A is deep while sound B is shrill.

Pitch is that characteristic of sound by which a shrill voice can be distinguished from a deep voice of the same loudness. The pitch of a sound depends on its frequency.
The sound with low frequency has low pitch and thus is a deep sound. Whereas, the sound with high frequency has high pitch and thus is a shrill sound.
Frequency of a sound does not affect its loudness.