Juan and Giancarlo are opera singers.Juan is a tenor and Giancarlo is a baritone.Tenors sing with higher-pitched voices than baritones.With respect to this fact,the sound waves corresponding to Giancarlo's voice are lower in ________ than those corresponding to Juan's voice;that is,they are lower in________.

Question

Quizplus · Accepted Answer

Frequency is the characteristic of a sound wave that determines its pitch, and it is measured in Hertz (Hz). As tenors sing with higher-pitched voices than baritones, the frequency of Juan's voice (tenor) is higher, so Giancarlo's voice (baritone) has lower frequency (Hz) waves. Therefore, Option A is the best choice. Amplitude, on the other hand, is the characteristic of a sound wave that determines its loudness, and it is measured in decibels (dB). The question does not suggest any difference in loudness between the two singers, so options C and D can be eliminated.

Juan and Giancarlo Are Opera Singers