A planet of small mass m moves around the sun of mass M, along an elliptical orbit such that its minimum and maximum distance from sun are r and R, respectively. Its period of revolution will be:

Options

A. `T = 2pir(m//2klambdaq)^(1//2)`
B. `T^(2)=4pi^(2)mr^(3)//2qklambda`
C. `T=1//2pir(2klambdaq//m)^(1//2)`
D. `T = 1//2pir(m//kpilambdaq)^(1//2)"where"" " K=(1)/(4piepsilon_(0))`

Answer

A