Question

A tone of 150 Hz increases in intensity from 40dB to 90dB, does the pitch change?

A) Yes
B) No

Answer 1

The pitch of a tone remains the same when its intensity increases, as pitch is determined by frequency, not loudness.

Step-by-step explanation:

The pitch of a tone is determined by its frequency, which in this case is 150 Hz. When the intensity of a sound increases from 40dB to 90dB, this refers to an increase in the loudness of the sound, not the pitch.

The decibel scale is logarithmic and measures the intensity of the sound pressure level, not the frequency that determines pitch. Therefore, the correct answer is (B) No, because pitch does not depend on intensity.