Physics for IGCSE & O level - Waves And Sounds (Section 2 - No. 22)
How is the energy carried by a wave related to its amplitude?
Energy is inversely proportional to amplitude.
Energy is proportional to the square of the amplitude.
Energy is directly proportional to amplitude.
Energy is unrelated to amplitude.
Explicació
The energy of a wave is proportional to the square of the amplitude.