Two sound waves recorded on an oscilloscope have the following characteristics:
• Wave A: frequency 256Hz, amplitude 0.50mm
• Wave B: frequency 512Hz, amplitude 0.25mm
Answer the questions below.
(a) Which wave will be perceived as having the higher pitch? Give a reason.
(b) Which wave will sound louder? Give a reason.
(c) If the amplitude of Wave B is adjusted so that its loudness matches that of Wave A, qualitatively state how its trace on the screen should change.