A satellite is orbiting the earth in a circular orbit of radius `r`. Its

Options

A. A and B
B. A and C
C. A, C and D
D. all of the above

Answer

c

Explanation

`"K.E. " prop (1)/(r), L=Iomega="mrV = mr"sqrt((GM)/(r))=msqrt(GMr)`
`therefore" "L prop sqrtr, P=mV=msqrt((GM)/(r)) therefore P prop (1)/(sqrtr),`
`therefore T prop r^(3//2)" "therefore (f)/(n) prop (1)/(r^(3//2))`