Planets X and Y move in circular orbits around the same star
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
Planets X and Y move in circular orbits around the same star.
The orbital period of planet Y is twice the orbital period of planet X. The orbital radius of planet X is R.
What is the orbital radius of planet Y?
(A) 32R
(B) 34R
(C) 2R
(D) 4R