Respuesta :
The amplitude or size of the wave is indicated in my sketch and its 4cm.
The wavelength or distance for a complete oscillation is indicated in my sketch as a straight line AB which is equal to 8cm.

The amplitude or size of the wave is indicated in my sketch and its 4cm.
The wavelength or distance for a complete oscillation is indicated in my sketch as a straight line AB which is equal to 8cm.