If the two waves shown in the diagram were to combine. What is the smallest wave they can produce?
A) A wave with an amplitude of 1.
B) A wave with an amplitude of 2.
C) A wave with an amplitude of 3.
D) No wave at all, they would cancel each other.
The smallest wave will have an amplitude of 3 if the two waves shown were to combine. Remember that amplitude is the maximum displacement of two waves and the result of two wave's amplitude is the sum of the two wave's displacements at the same location.
