Answer :
A)The amplitude of this wave will be 10 cm
B)The wavelength of this wave will be 4 cm.
What is wavelength?
The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.
While the distance between from the crest of a wave to the next crest is known as the amplitude.
The distance from the crest of a wave to the next crest is amplitude which is given as 10 centimeters.
The distance from a crest of this wave to a trough is wavelength which is given as 4 centimeters.
Hence the amplitude of this wave and wavelength will be 10 cm and 4 cm respectively.
To learn more about the wavelength refer to the link;
brainly.com/question/7143261