Two waves move through the same medium.
• Wave A: frequency = 300 Hz, amplitude = 2 cm
• Wave B: frequency = 150 Hz, amplitude = 4 cm
Which statement is correct about the energy transported by the two waves?
(a) Wave B transports four times as much energy because its amplitude is twice as large, and wave energy is proportional to A2.
(b) Wave A transports four times as much energy because its frequency is twice as large, and wave energy is proportional to f2.
(c) Both waves transport the same energy because the product of frequency and amplitude is the same for each.
(d) Wave energy depends only on the properties of the medium, so both waves transport the same energy.