A wave pulse is reflected from a free boundary. Which of the following statements best describes what happens to the reflected pulse?

Question

it is the same as the original wave

it is an inverted form of the original wave

it will speed up after reflection

it disappears because the energy is all absorbed

it will slow down after reflection

Answer 1

A reflection of a wave from a free boundary is identical in every way other than direction of travel. So the answer is probably the first one, it is the same as the original wave.