Question

plz answer it as quick as possible I need those for my exam give correct answer

Answer 1

sorry but i only know the second part

amplitude is the maximum displacement of bob from its mean position to its extreme position.

Answer 2

Wavelength is the distance between an adjacent comression and a rarefaction. In simple words the length of one complete wave.Its si unit is lambda.

Amplitude is the maximum displacement covered by the particles of a wave of a medium on either side from their original undisturbed position.Its si unit is metre.

Velocity of a wave is defined as the distance travelled by a wave in one second.Its si unit is metre per second