Question

Which of the following are true statements about the graph below? (choose 2)

The wavelength of the wave is decreasing as time goes on.

The frequency is decreasing as time goes on.

Something is damping the wave.

The amplitude of the wave is decreasing as time goes on.

Answer 1

The amplitude of the wave is decreasing with time.

Something is damping the wave (the amplitude is decreasing with time)

Answer 2

Step-by-step explanation:

The amplitde is measdured in the +/- y direction. Certainly you can observe that it is changing.

A damped wave is one whose vertical disdtance keeps going down until it is almost a straight line. Smething is causing that. The phenomenon is called damping.

So the answer is the last two. (c and d)

The frequency is measured on the x axis. If the distance between waves changes, then the frequency changes. Wavelength is also measured on the x axis. If the distance occupied by 2 consecutive waves changes , then the wave length changes.