Answer:
frequency and amplitude increases
If it's Kepler's law of equal areas you're talking about,
then the first of the four statements is true.
Hello, I see you are in a jam. Lemme help.
1.) True
2.) True
3.) True
4.) True
5.) True
LOL these are all true ;)

Strength: able to detect planets in a wide range of orbits, as long as orbits aren't face on
Limitations: yield only planet's mass and orbital properties
This makes frequency lower as well as the pitch we hear.