Two satellites orbiting around the earth have their critical speeds in the ratio 4 : 5. What is the ratio of their orbital radii ?

Options

A. `100:1`
B. `1:100`
C. `10:1`
D. `1:1`

Answer

d

Explanation

`(T_(1))/(T_(2))=((r_(1))/(r_(2)))^(3//2)`
`(1)^(2//3)=(r_(1))/(r_(2))" "therefore (r_(1))/(r_(2))=(1)/(1).`