3-8: 3 SEE ANSWER

Answer:

(a) 446 Hz or 434 Hz

(b) There is not enough information given to tell.

The beat frequency is the difference between the two component frequencies. Therefore if the first frequency is 440 Hz and there is a 6 Hz (beats) difference, then the second frequency must be 6 beats higher or lower than the first frequency. 440 Hz - 6 Hz = 434 Hz. 440 Hz + 6 Hz = 446 Hz. Since we do not know if the second oboe's frequency is higher or lower than the first oboe, we don't know if the second oboe is flat or sharp.

1. REDIRECT 3-8 Assessment